COVER PAGE - USD ($)	12 Months Ended
COVER PAGE - USD ($)	Mar. 31, 2024	May 02, 2024	Sep. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Mar. 31, 2024
Current Fiscal Year End Date	--03-31
Document Transition Report	false
Entity File Number	0-29174
Entity Registrant Name	LOGITECH INTERNATIONAL S.A.
Entity Incorporation, State or Country Code	V8
Entity Address, Address Line One	1015 Lausanne
Entity Address, Country	CH
Entity Address, Address Line Two	c/o Logitech Inc.
Entity Address, Address Line Three	3930 North First Street
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95134
City Area Code	510
Local Phone Number	795-8500
Title of 12(b) Security	Registered Shares
Trading Symbol	LOGI
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 10,814,715,350
Entity Common Stock, Shares Outstanding		153,443,934
Documents Incorporated by Reference	Portions of the registrant's Proxy Statement for the 2024 Annual Meeting of Shareholders are incorporated herein by reference in Part III of this Annual Report on Form 10-K to the extent stated herein.
Entity Central Index Key	0001032975
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY

Audit Information	12 Months Ended
Audit Information	Mar. 31, 2024
Audit Information [Abstract]
Auditor Firm ID	185
Auditor Name	KPMG LLP
Auditor Location	San Francisco, California

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 4,298,467	$ 4,538,818	$ 5,481,101
Cost of goods sold	2,509,418	2,806,438	3,204,072
Amortization of intangible assets	11,028	12,865	14,023
Gross profit	1,778,021	1,719,515	2,263,006
Operating expenses:
Marketing and selling	730,310	809,182	1,025,899
Research and development	287,243	280,796	291,844
General and administrative	155,056	124,652	148,648
Amortization of intangible assets and acquisition-related costs	10,934	11,843	16,947
Impairment of intangible assets	3,526	0	7,000
Change in fair value of contingent consideration for business acquisition	(250)	0	(3,509)
Restructuring charges, net	3,866	34,573	2,165
Total operating expenses	1,190,685	1,261,046	1,488,994
Operating income	587,336	458,469	774,012
Interest income	50,636	18,331	1,246
Other income (expense), net	(16,376)	(13,278)	560
Income before income taxes	621,596	463,522	775,818
Provision for income taxes	9,453	98,947	131,305
Net income	$ 612,143	$ 364,575	$ 644,513
Net income per share:
Basic (in dollars per share)	$ 3.90	$ 2.25	$ 3.85
Diluted (in dollars per share)	$ 3.87	$ 2.23	$ 3.78
Weighted average shares used to compute net income per share:
Basic (in shares)	156,776	162,302	167,447
Diluted (in shares)	158,171	163,704	170,414

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 612,143	$ 364,575	$ 644,513
Currency translation gain (loss):
Currency translation gain (loss), net of taxes	(3,078)	1,373	(14,051)
Reclassification of cumulative translation adjustments included in other income (expense), net	0	219	1,051
Defined benefit plans:
Net gain (loss) and prior service costs, net of taxes	(13,163)	16,089	22,328
Reclassification of amortization included in other income (expense), net	243	(8,069)	(2,623)
Hedging gain (loss):
Deferred hedging gain, net of taxes	1,109	2,625	6,308
Reclassification of hedging loss (gain) included in cost of goods sold	3,964	(8,391)	(8,221)
Total other comprehensive income (loss)	(10,925)	3,846	4,792
Total comprehensive income	$ 601,218	$ 368,421	$ 649,305

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Current assets:
Cash and cash equivalents	$ 1,520,842	$ 1,149,023
Accounts receivable, net	541,715	630,382
Inventories	422,513	682,893
Other current assets	146,270	142,876
Total current assets	2,631,340	2,605,174
Non-current assets:
Property, plant and equipment, net	116,589	121,503
Goodwill	461,978	454,610
Other intangible assets, net	44,603	63,173
Other assets	350,194	316,293
Total assets	3,604,704	3,560,753
Current liabilities:
Accounts payable	448,627	406,968
Accrued and other current liabilities	637,262	643,139
Total current liabilities	1,085,889	1,050,107
Non-current liabilities:
Income taxes payable	112,572	106,391
Other non-current liabilities	172,590	146,695
Total liabilities	1,371,051	1,303,193
Commitments and contingencies (Note 13)
Shareholders' equity:
Registered shares, CHF 0.25 par value: Issued shares —173,106 at March 31, 2024 and 2023 , Additional shares that may be issued out of conditional capital — 50,000 at March 31, 2024 and 2023, Additional shares that may be issued out of authorized capital — 17,311 at March 31, 2024 and 2023	30,148	30,148
Additional paid-in capital	63,524	127,380
Shares in treasury, at cost — 19,243 and 13,763 shares at March 31, 2024 and 2023, respectively	(1,351,336)	(977,266)
Retained earnings	3,602,519	3,177,575
Accumulated other comprehensive loss	(111,202)	(100,277)
Total shareholders' equity	2,233,653	2,257,560
Total liabilities and shareholders' equity	$ 3,604,704	$ 3,560,753

CONSOLIDATED BALANCE SHEETS (Parenthetical) - SFr / shares	Mar. 31, 2024	Mar. 31, 2023
Statement of Financial Position [Abstract]
Shares, par value (in CHF per share)	SFr 0.25	SFr 0.25
Issued shares (in shares)	173,106,000	173,106,000
Additional shares that may be issued out of conditional capital (in shares)	50,000,000	50,000,000
Additional shares that may be issued out of authorized capital (in shares)	17,311,000	17,311,000
Shares in treasury, at cost (in shares)	19,243,358	13,763,000

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 612,143	$ 364,575	$ 644,513
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	63,065	76,309	88,361
Amortization of intangible assets	21,681	24,407	30,179
Impairment of intangible assets	3,526	0	7,000
Loss on investments	14,674	14,073	1,683
Share-based compensation expense	82,889	70,782	93,479
Deferred income taxes	(42,424)	30,714	27,334
Change in fair value of contingent consideration for business acquisition	(250)	0	(3,509)
Pension curtailment gains	0	(4,225)	0
Other	379	1,005	1,140
Changes in assets and liabilities, net of acquisitions:
Accounts receivable, net	91,519	51,185	(71,510)
Inventories	259,796	247,309	(276,640)
Other assets	10,760	5,634	(18,169)
Accounts payable	39,336	(219,051)	(181,303)
Accrued and other liabilities	(11,978)	(128,707)	(44,240)
Net cash provided by operating activities	1,145,116	534,010	298,318
Cash flows from investing activities:
Purchases of property, plant and equipment	(55,897)	(92,353)	(89,152)
Investment in privately held companies	(617)	(4,357)	(1,463)
Acquisitions, net of cash acquired	(14,424)	(8,527)	(16,236)
Purchases of short-term investments	0	0	(10,000)
Proceeds from the sale of short-term investments	0	0	8,260
Purchases of deferred compensation investments	(11,571)	(6,702)	(5,058)
Proceeds from sales of deferred compensation investments	12,174	6,209	5,786
Net cash used in investing activities	(70,335)	(105,730)	(107,863)
Cash flows from financing activities:
Payment of cash dividends	(182,305)	(158,680)	(159,410)
Payment of contingent consideration for business acquisition	(5,002)	(5,954)	(880)
Purchases of registered shares	(504,203)	(418,346)	(412,022)
Proceeds from exercises of stock options and purchase rights	32,197	28,790	29,649
Tax withholdings related to net share settlements of restricted stock units	(29,744)	(29,163)	(64,156)
Other financing activities	(1,116)	0	0
Net cash used in financing activities	(690,173)	(583,353)	(606,819)
Effect of exchange rate changes on cash and cash equivalents	(12,789)	(24,620)	(5,247)
Net increase (decrease) in cash and cash equivalents	371,819	(179,693)	(421,611)
Cash and cash equivalents at beginning of the period	1,149,023	1,328,716	1,750,327
Cash and cash equivalents at end of the period	1,520,842	1,149,023	1,328,716
Non-cash investing and financing activities:
Property, plant and equipment purchased during the period and included in period end liability accounts	11,451	8,593	11,890
Fair value of contingent consideration in accrued and other liabilities	0	2,151	9,013
Supplemental cash flow information:
Income taxes paid, net	$ 50,855	$ 71,955	$ 192,898

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Registered shares	Additional paid-in capital	Treasury shares	Retained earnings	Accumulated other comprehensive loss
Beginning of the period (in shares) at Mar. 31, 2021		173,106,000
Beginning of the period (in shares) at Mar. 31, 2021				4,799,000
Beginning of the period at Mar. 31, 2021	$ 2,261,789	$ 30,148	$ 129,519	$ (279,541)	$ 2,490,578	$ (108,915)
Increase (Decrease) in Shareholders' Equity
Total comprehensive income	649,305				644,513	4,792
Purchases of registered shares (in shares)				4,607,000
Purchases of registered shares	(412,022)			$ (412,022)
Sale of shares upon exercise of stock options and purchase rights (in shares)				(410,000)
Sale of shares upon exercise of stock options and purchase rights	29,649		12,971	$ 16,678
Issuance of shares upon vesting of restricted stock units (in shares)				(1,137,000)
Issuance of shares upon vesting of restricted stock units	(64,156)		(105,972)	$ 41,816
Issuance of shares for contingent consideration (in shares)				(4,000)
Issuance of shares from contingent consideration	292		116	$ 176
Share-based compensation	93,291		93,291
Cash dividends	(159,410)				(159,410)
End of the period (in shares) at Mar. 31, 2022		173,106,000
End of the period (in shares) at Mar. 31, 2022				7,855,000
End of the period balance at Mar. 31, 2022	2,398,738	$ 30,148	129,925	$ (632,893)	2,975,681	(104,123)
Increase (Decrease) in Shareholders' Equity
Total comprehensive income	368,421				364,575	3,846
Purchases of registered shares (in shares)				7,562,000
Purchases of registered shares	(418,346)			$ (418,346)
Sale of shares upon exercise of stock options and purchase rights (in shares)				(686,000)
Sale of shares upon exercise of stock options and purchase rights	28,790		(5,636)	$ 34,426
Issuance of shares upon vesting of restricted stock units (in shares)				(968,000)
Issuance of shares upon vesting of restricted stock units	(29,163)		(68,710)	$ 39,547
Share-based compensation	71,801		71,801
Cash dividends	$ (162,681)				(162,681)
End of the period (in shares) at Mar. 31, 2023		173,106,000
End of the period (in shares) at Mar. 31, 2023	13,763,000			13,763,000
End of the period balance at Mar. 31, 2023	$ 2,257,560	$ 30,148	127,380	$ (977,266)	3,177,575	(100,277)
Increase (Decrease) in Shareholders' Equity
Total comprehensive income	$ 601,218				612,143	(10,925)
Purchases of registered shares (in shares)	4,100,000			7,100,000
Purchases of registered shares	$ (523,751)			$ (523,751)
Sale of shares upon exercise of stock options and purchase rights (in shares)				(624,000)
Sale of shares upon exercise of stock options and purchase rights	32,197		(28,314)	$ 60,511
Issuance of shares upon vesting of restricted stock units (in shares)				(994,000)
Issuance of shares upon vesting of restricted stock units	(29,744)		(118,771)	$ 89,027
Issuance of shares for contingent consideration (in shares)				(2,000)
Issuance of shares from contingent consideration	245		102	$ 143
Share-based compensation	83,127		83,127
Cash dividends	$ (187,199)				(187,199)
End of the period (in shares) at Mar. 31, 2024		173,106,000
End of the period (in shares) at Mar. 31, 2024	19,243,358			19,243,000
End of the period balance at Mar. 31, 2024	$ 2,233,653	$ 30,148	$ 63,524	$ (1,351,336)	$ 3,602,519	$ (111,202)

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical)	1 Months Ended						12 Months Ended
	Sep. 30, 2023 $ / shares	Sep. 30, 2023 SFr / shares	Sep. 30, 2022 $ / shares	Sep. 30, 2022 SFr / shares	Sep. 30, 2021 $ / shares	Sep. 30, 2021 SFr / shares	Mar. 31, 2024 $ / shares	Mar. 31, 2023 $ / shares	Mar. 31, 2022 $ / shares
Statement of Stockholders' Equity [Abstract]
Cash dividends per share (in dollars per share) \| (per share)	$ 1.16	SFr 1.06	$ 0.98	SFr 0.96	$ 0.95	SFr 0.87	$ 1.19	$ 1.00	$ 0.95

The Company	12 Months Ended
The Company	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company	The Company Logitech International S.A, together with its consolidated subsidiaries ("Logitech" or the "Company"), designs software-enabled hardware solutions that help businesses thrive and bring people together when working, creating, gaming and streaming. As a point of connection between people and the digital world, the Company's mission is to extend human potential in work and play, in a way that is good for people and the planet. The Company sells its products to a broad network of international customers, including direct sales to retailers, e-tailers, and end consumers through the Company's e-commerce platform, and indirect sales to end customers through distributors. Logitech was founded in Switzerland in 1981 and Logitech International S.A. has been the parent holding company of Logitech since 1988. Logitech International S.A. is a Swiss holding company with its registered office in Hautemorges, Switzerland and headquarters in Lausanne, Switzerland, which conducts its business through subsidiaries in the Americas, Europe, Middle East and Africa ("EMEA") and Asia Pacific. Shares of Logitech International S.A. are listed on both the SIX Swiss Exchange, under the trading symbol LOGN, and the Nasdaq Global Select Market, under the trading symbol LOGI.

Summary of Significant Accounting Policies

12 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Basis of Presentation

The consolidated financial statements include the accounts of Logitech and its subsidiaries. All intercompany balances and transactions have been eliminated. The consolidated financial statements are presented in accordance with accounting principles generally accepted in the United States ("U.S. GAAP").

Fiscal Year

The Company's fiscal year ends on March 31. Interim quarters are generally thirteen-week periods, each ending on a Friday. For purposes of presentation, the Company has indicated its quarterly periods end on the last day of the calendar quarter.

Reference to Sales

References to "sales" in the Notes to the consolidated financial statements means net sales, except as otherwise specified.

Change in Presentation of Sales by Product Category

During the first quarter of fiscal year 2024, the Company changed its presentation of Sales by Product Category, included in Note 15, to provide a simpler and clearer view of the Company's business. The change in presentation did not have an impact on previously reported total sales. These changes included reclassifications of sales between certain product categories resulting in the following:

•The Webcams category (previously PC Webcams) now includes PC webcams and VC webcams;

•Headsets is a new category which includes PC headsets and VC headsets;

•The Mobile Speakers category is no longer a separate category as sales have been reclassified into the Other category;

•The Audio & Wearables category is no longer a separate category as sales have been reclassified into other categories as discussed below.

As a result of these changes, certain prior-period amounts for the fiscal years ending March 31, 2023 and 2022 have been reclassified to conform to the current period presentation as follows (in thousands):


	Year ended March 31, 2023
	As previously reported		Reclassifications			As adjusted
Gaming	$	1,211,485	$	76,828	(1)	$	1,288,313
Keyboards & Combos	836,432		—			836,432
Pointing Devices	728,357		—			728,357
Video Collaboration	887,517		(209,594)		(2) (3)	677,923
Webcams (3)	227,692		150,996		(3)	378,688
Tablet Accessories	254,374		—			254,374
Headsets	—		176,576		(2)	176,576
Other	7,081		191,074		(4) (5)	198,155
Mobile Speakers	111,649		(111,649)		(4)	—
Audio & Wearables	274,231		(274,231)		(1) (2) (5)	—
Total Sales	$	4,538,818	$	—		$	4,538,818


	Year ended March 31, 2022
	As previously reported		Reclassifications			As adjusted
Gaming	$	1,451,883	$	125,312	(1)	$	1,577,195
Keyboards & Combos	967,301		—			967,301
Pointing Devices	781,108		—			781,108
Video Collaboration	997,164		(329,594)		(2) (3)	667,570
Webcams (3)	403,651		272,465		(3)	676,116
Tablet Accessories	310,123		—			310,123
Headsets	—		208,318		(2)	208,318
Other	18,665		274,705		(4) (5)	293,370
Mobile Speakers	149,782		(149,782)		(4)	—
Audio & Wearables	401,424		(401,424)		(1) (2) (5)	—
Total Sales	$	5,481,101	$	—		$	5,481,101

(1) Reclassification of Blue Microphones from "Audio & Wearables" to the Gaming category.

(2) Reclassification of VC headsets and PC headsets to the new Headsets category from "Video Collaboration" and "Audio & Wearables," respectively.

(3) The Webcams category includes amounts previously reported as "PC Webcams" as well as amounts from VC webcams reclassified from "Video Collaboration."

(4) Reclassification of all amounts previously reported in "Mobile Speakers" to the Other category.

(5) Reclassification of PC speakers previously reported in "Audio & Wearables" to the Other category.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Significant estimates and assumptions made by management involve the fair value of goodwill and intangible assets acquired from business acquisitions, valuation of investment in privately held companies classified under Level 3 fair value hierarchy, pension obligations, accruals for customer incentives, cooperative marketing, and pricing programs ("Customer Programs") and related breakage when appropriate,

inventory valuation, share-based compensation expense, uncertain tax positions, and valuation allowances for deferred tax assets. Although these estimates are based on management’s best knowledge of current events and actions that may impact the Company in the future, actual results could differ materially from those estimates.

Risks and Uncertainties

Impacts of Macroeconomic and Geopolitical Conditions on the Company's Business

The Company's business has been impacted by adverse macroeconomic and geopolitical conditions. These conditions include inflation, interest rate and foreign currency fluctuations, changes in fiscal policies, slowdown of economic activity around the world, and lower consumer and enterprise spending.

The global and regional economic and political conditions adversely affected demand for the Company's products. In addition, these conditions have caused and may continue to cause volatility in the cost of materials and logistics, and transportation delays, and as a result may impact the pricing of the Company's products, product availability and the Company's results of operations.

Currencies

The functional currency of the Company's operations is primarily the U.S. Dollar. Certain operations use the Euro, Chinese Renminbi, Swiss Franc, or other local currencies as their functional currencies. The financial statements of the Company's subsidiaries whose functional currency is other than the U.S. Dollar are translated to U.S. Dollars using period-end rates of exchange for assets and liabilities and monthly average rates for sales, income and expenses. Cumulative translation gains and losses are included as a component of shareholders' equity in accumulated other comprehensive income (loss). Gains and losses arising from transactions denominated in currencies other than a subsidiary's functional currency are reported in other income (expense), net in the consolidated statements of operations.

Revenue Recognition

Revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the transaction price the Company expects to receive in exchange for those goods or services.

Substantially all revenue recognized by the Company relates to the contracts with customers to sell products that allow people to connect through gaming, video, computing, music and other digital platforms. These products are hardware devices, which may include embedded software that function together, and are considered as one performance obligation. Hardware devices are generally plug and play, requiring no configuration and little or no installation. Revenue is recognized at a point in time when control of the products is transferred to the customer which generally occurs upon shipment. The Company’s sales contracts with its customers have a one year or shorter term. The Company elects not disclosing the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less.

The Company also provides post-contract customer support (“PCS”) for certain products and related software, which includes unspecified software updates and upgrades, bug fixes and maintenance. The transaction price is allocated to two performance obligations in such contracts, based on a relative standalone selling price. The transaction price allocated to PCS is recognized as revenue on a straight-line basis, which reflects the pattern of delivery of PCS, over the estimated term of the support.

The Company also recognizes revenue from subscription services that provide professional streamers with access to streaming software and tools that represent a single stand-ready performance obligation. Subscriptions are paid for at the time of or in advance of delivering the services. The proceeds received in advance from such arrangements is recognized as deferred revenue and then recognized as revenue ratably over the subscription period.

The Company normally requires payment from customers within thirty to sixty days from the invoice date. However, terms may vary by customer type, by country and by selling season. Extended payment terms are sometimes offered to a limited number of customers during the second and third fiscal quarters. The Company generally does not modify payment terms on existing receivables. The Company's contracts with customers do not include significant financing components as the period between the satisfaction of performance obligations and timing of payment are generally within one year.

The transaction price received by the Company from sales to its distributors, retail companies ("retailers"), and authorized resellers is calculated as selling price net of variable consideration which may include product returns and the Company’s payments for Customer Programs related to current period product revenue. The estimated impact of these programs is recorded as a reduction of transaction price or as an operating expense if the Company receives a distinct good or service from the customer and can reasonably estimate the fair value of that good or service received. Customer Programs require management to estimate the percentage of those programs which will not be claimed in the current period or will not be earned by customers, which is commonly referred to as "breakage." Breakage is estimated based on historical claim experience, the period in which customer claims are expected to be submitted, specific terms and conditions with customers and other factors. The Company accounts for breakage as part of variable consideration, subject to constraint, and records the estimated impact in the same period when revenue is recognized at the expected value. Assessing the period in which claims are expected to be submitted and the relevance of the historical claim experience require significant management judgment to estimate the breakage of Customer Programs in any accounting period.

The Company enters into cooperative marketing arrangements with many of its customers and with certain indirect partners, allowing customers to receive a credit equal to a set percentage of their purchases of the Company's products, or a fixed dollar amount for various marketing and incentive programs. The objective of these arrangements is to encourage advertising and promotional events to increase sales of the Company's products.

Customer incentive programs include consumer rebates and performance-based incentives. Consumer rebates are offered to the Company's customers and indirect partners at the Company's discretion for the primary benefit of end-users. In addition, the Company offers performance-based incentives to many of its customers and indirect partners based on predetermined performance criteria. At management's discretion, the Company also offers special pricing discounts to certain customers. Special pricing discounts are usually offered only for limited time periods or for sales of selected products to specific indirect partners.

Cooperative marketing arrangements and customer incentive programs are considered variable consideration, which the Company estimates and records as a reduction to revenue at the time of sale based on negotiated terms, historical experiences, forecasted incentives, anticipated volume of future purchases, and inventory levels in the channel.

The Company has agreements with certain customers that contain terms allowing price protection credits to be issued in the event of a subsequent price reduction. Management's decision to make price reductions is influenced by product life cycle stage, market acceptance of products, the competitive environment, new product introductions and other factors.

Accruals for estimated expected future pricing actions and Customer Programs are recognized at the time of sale based on analyses of historical pricing actions by customer and by product, inventories owned by and located at customers, current customer demand, current operating conditions, and other relevant customer and product information, such as stage of product life-cycle.

Product return rights vary by customer. Estimates of expected future product returns qualify as variable consideration and are recorded as a reduction of the transaction price of the contract at the time of sale based on an analyses of historical return trends by customer and by product, inventories owned by and located at customers, current customer demand, current operating conditions, and other relevant customer and product information. The Company assesses the estimated asset for recovery value for impairment and adjusts the value of the asset for any impairment. Return trends are influenced by product life cycle status, new product introductions, market acceptance of products, sales levels, product sell-through, the type of customer, seasonality, product quality issues, competitive pressures, operational policies and procedures, and other factors. Return rates can fluctuate over time but are sufficiently predictable to allow the Company to estimate expected future product returns.

Typically, variable consideration does not need to be constrained as estimates are based on predictive historical data or future commitments that are planned and controlled by the Company. However, the Company continues to assess variable consideration estimates such that it is probable that a significant reversal of revenue will not occur.

The Company regularly evaluates the adequacy of its estimates for Customer Programs and product returns. Future market conditions and product transitions may require the Company to take action to change such programs

and related estimates. When the variables used to estimate these costs change, or if actual costs differ significantly from the estimates, the Company would be required to increase or reduce revenue or operating expenses to reflect the impact. During the year ended March 31, 2024, changes to these estimates related to performance obligations satisfied in prior periods were not material.

Sales taxes and value-added taxes (“VAT”) collected from customers, if applicable, which are remitted to governmental authorities are not included in revenue, and are reflected as a liability on the consolidated balance sheets.

Shipping and Handling Costs

The Company's shipping and handling costs are included in the cost of goods sold in the consolidated statements of operations.

Contract Balances

The Company records accounts receivable from contracts with customers when it has an unconditional right to consideration, as accounts receivable, net on the consolidated balance sheets.

The Company records contract liabilities when cash payments are received or due in advance of performance, primarily for implied support and subscriptions. Contract liabilities are included in accrued and other current liabilities and other non-current liabilities on the consolidated balance sheets.

Contract Costs

The Company recognizes the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that otherwise would have been recognized is one year or less. These costs are included in marketing and selling expenses in the consolidated statements of operations. As of March 31, 2024 and 2023, the Company did not have any material deferred contract costs.

Research and Development Costs

Costs related to research, design and development of products, which consist primarily of personnel, product design and infrastructure expenses, are charged to research and development expense as they are incurred.

Advertising Costs

Advertising costs are recorded as either a marketing and selling expense or a deduction from revenue as they are incurred. Advertising costs paid or reimbursed by the Company to direct or indirect customers must have an identifiable benefit and an estimable fair value in order to be classified as an operating expense. If these criteria are not met, the payment is classified as a reduction of revenue. Advertising costs recorded as marketing and selling expense are expensed as incurred. Total advertising costs including those characterized as revenue deductions during fiscal years 2024, 2023 and 2022 were $325.3 million, $383.7 million and $584.4 million, respectively, out of which $46.6 million, $67.3 million, and $223.3 million, respectively, were included as operating expense in the consolidated statements of operations.

Cash Equivalents

The Company classifies all highly liquid instruments purchased, such as bank demand deposits, short-term time deposits, and U.S. Treasury securities, with an original maturity of three months or less at the date of purchase, to be cash equivalents. Cash equivalents are carried at cost, which approximates their fair value.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company maintains cash and cash equivalents with various creditworthy financial institutions and has a policy to limit exposure with any one financial institution, but is exposed to credit risk in the event of default by financial institutions to the extent that cash balances with individual financial institutions are in excess of amounts that are insured. The Company periodically assesses the credit risk associated with these financial institutions.

The Company sells to large distributors, retailers, and e-tailers and, as a result, maintains individually significant receivable balances with such customers.

The Company had the following customers that individually comprised 10% or more of its gross sales:


	Years Ended March 31,
	2024		2023		2022
Customer A	13	%	13	%	15	%
Customer B	18	%	19	%	17	%
Customer C	14	%	15	%	14	%

The Company had the following customers that individually comprised 10% or more of its accounts receivable:


	March 31,
	2024		2023
Customer A	14	%	12	%
Customer B	20	%	21	%
Customer C	15	%	15	%

The Company manages its accounts receivable credit risk through ongoing credit evaluation of its customers' financial conditions. The Company generally does not require collateral from its customers.

Allowances for Doubtful Accounts

Allowances for doubtful accounts are maintained for expected credit losses resulting from the Company's customers' inability to make required payments. The allowances are based on the Company's regular assessment of various factors, including the credit-worthiness and financial condition of specific customers, historical experience with bad debts and customer deductions, receivables aging, current economic conditions, reasonable and supportable forecasts of future economic conditions, and other factors that may affect the Company's ability to collect from customers.

Inventories

Inventories are stated at the lower of cost and net realizable value. Costs are computed under the standard cost method, which approximates actual costs determined on the first-in, first-out basis. The Company records write-downs of inventories which are obsolete or in excess of anticipated demand or net realizable value based on a consideration of marketability and product life cycle stage, product development plans, component cost trends, historical sales and demand forecasts which consider the assumptions about future demand and market conditions. Inventory on hand which is not expected to be sold or utilized is considered excess, and the Company recognizes the write-down in cost of goods sold at the time of such determination. The write-down is determined by the excess of cost over net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. At the time of loss recognition, new cost basis per unit and lower-cost basis for that inventory are established and subsequent changes in facts and circumstances would not result in an increase in the cost basis.

The Company recorded liabilities arising from firm, non-cancelable, and unhedged inventory purchase commitments in excess of anticipated demand or net realizable value consistent with its valuation of excess and obsolete inventory. Such liability is included in accrued and other current liabilities on the consolidated balance sheets.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Additions and improvements are capitalized, and maintenance and repairs are expensed as incurred. The Company capitalizes the cost of software developed for internal use in connection with major projects. Costs incurred during the preliminary project stage and post implementation stage are expensed, whereas direct costs incurred during the application development stage are capitalized.

Depreciation expense is recognized using the straight-line method. Plant and buildings are depreciated over estimated useful lives of twenty-five years, equipment over useful lives from three to five years, internal-use

software over useful lives from three to seven years, tooling over useful lives from six months to one year, and leasehold improvements over the lesser of the term of the lease or ten years.

When property and equipment is retired or otherwise disposed of, the cost and accumulated depreciation are relieved from the accounts and the net gain or loss is included in cost of goods sold or operating expenses, depending on the nature of the property and equipment.

Leases

The Company determines if an arrangement is a lease or contains a lease at contract inception. The Company determines if a lease is an operating or finance lease and recognizes right-of-use ("ROU") assets and lease liabilities upon lease commencement. Operating lease ROU assets are included in other assets, short-term lease liabilities are included in accrued and other current liabilities, and long-term lease liabilities are included in other non-current liabilities on the Company's consolidated balance sheets. Leases with an initial term of 12 months or less are not recorded on the balance sheet. For the Company's operating leases, the Company accounts for the lease component and related non-lease component as a single lease component. Lease expense is recognized on a straight-line basis over the lease term.

For operating leases, the lease liability is initially measured at the present value of the unpaid lease payments at lease commencement date. As most of the leases do not provide an implicit rate, the Company generally uses its incremental borrowing rate as the discount rate for the leases. The Company's incremental borrowing rate is the rate of interest it would have to pay on a collateralized basis to borrow an amount equal to the lease payments under similar terms. Because the Company does not generally borrow on a collateralized basis, it uses its understanding of what its collateralized credit rating would be as an input to deriving an appropriate incremental borrowing rate. The operating lease ROU assets include prepaid lease payments and exclude lease incentives.

Intangible Assets

The Company's intangible assets include goodwill and intangible assets with finite lives, which primarily include acquired technology and customer contracts and related relationships. Intangible assets with finite lives are carried at cost and amortized using the straight-line method over their useful lives ranging from one to ten years.

Impairment of Long-Lived Assets

The Company reviews long-lived assets, such as property and equipment, and finite-lived intangible assets, for impairment whenever events indicate that the carrying amounts might not be recoverable. Recoverability of long-lived assets is measured by comparing the projected undiscounted net cash flows associated with those assets to their carrying values. If an asset is considered impaired, it is written down to its fair value, which is determined based on the asset's projected discounted cash flows or appraised value, depending on the nature of the asset. For purposes of recognition of impairment for assets held for use, the Company groups assets and liabilities at the lowest level for which cash flows are separately identifiable.

Impairment of Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in each business combination. The Company conducts a goodwill impairment analysis annually at December 31 or more frequently if indicators of impairment exist or if a decision is made to sell or exit a business. Significant judgments are involved in determining if an indicator of impairment has occurred. Such indicators may include deterioration in general economic conditions, negative developments in equity and credit markets, adverse changes in the markets in which an entity operates, increases in input costs that have a negative effect on earnings and cash flows, or a trend of negative or declining cash flows over multiple periods, among others. The fair value that could be realized in an actual transaction may differ from that used to evaluate the impairment of goodwill.

In reviewing goodwill for impairment, the Company has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (greater than 50%) that the estimated fair value of a reporting unit is less than its carrying amount. The Company also may elect not to perform the qualitative assessment and, instead, proceed directly to the quantitative impairment test. The ultimate outcome of the goodwill impairment review for a reporting unit should be the same whether the Company chooses to perform the qualitative assessment or proceeds directly to the quantitative impairment test. The Company operates as one reporting unit. For the year ended March 31, 2024, the Company

elected to perform a qualitative assessment and concluded that it was more likely than not that the fair value of its reporting unit exceeds its carrying amount.

Income Taxes

The Company provides for income taxes using the asset and liability method, which requires that deferred tax assets and liabilities be recognized for the expected future tax consequences of temporary differences resulting from differing treatment of items for tax and financial reporting purposes, and for operating losses and tax credit carryforwards. In estimating future tax consequences, expected future events are taken into consideration, with the exception of potential tax law or tax rate changes. The Company records a valuation allowance to reduce deferred tax assets to amounts management believes are more likely than not to be realized.

The Company's assessment of uncertain tax positions requires that management makes estimates and judgments about the application of tax law, the expected resolution of uncertain tax positions and other matters. In the event that uncertain tax positions are resolved for amounts different than the Company's estimates, or the related statutes of limitations expire without the assessment of additional income taxes, the Company will be required to adjust the amounts of the related assets and liabilities in the period in which such events occur. Such adjustments may have a material impact on the Company's income tax provision and its results of operations.

Fair Value of Financial Instruments

The carrying value of certain of the Company's financial instruments, including cash equivalents, accounts receivable and accounts payable approximates their fair value due to their short maturities.

The Company's investment securities portfolio consists of bank demand deposits, short-term time deposits, and U.S. Treasury securities with an original maturity of three months or less and marketable securities (money market and mutual funds) related to a deferred compensation plan.

The Company's investments related to the deferred compensation plan are reported at fair value based on quoted market prices. The marketable securities related to the deferred compensation plan are classified as non-current investments, as they are intended to fund the deferred compensation plan's long-term liability. Participants in the deferred compensation plan may select the mutual funds in which their compensation deferrals are invested within the confines of the Rabbi Trust which holds the marketable securities. These securities are recorded at fair value based on quoted market prices. Earnings, gains and losses on deferred compensation investments are included in other income (expense), net in the consolidated statements of operations.

The Company also holds certain non-marketable investments that are accounted for as equity method investments and included in other assets in the consolidated balance sheets. In addition, the Company has certain equity investments without readily determinable fair values due to the absence of quoted market prices, the inherent lack of liquidity, and the fact that inputs used to measure fair value are unobservable and require management's judgment. The Company elected the measurement alternative to record these investments at cost and to adjust for impairments and observable price changes resulting from transactions with the same issuer within the statements of operations.

Net Income per Share

Basic net income per share is computed by dividing net income by the weighted average outstanding shares. Diluted net income per share is computed using the weighted average outstanding shares and dilutive share equivalents. Dilutive share equivalents consist of share-based awards, including stock options, purchase rights under employee share purchase plan, and restricted stock units.

The dilutive effect of in-the-money share-based compensation awards is calculated based on the average share price for each fiscal period using the treasury stock method.

Share-Based Compensation Expense

Share-based compensation expense includes compensation expense for share-based awards granted based on the grant date fair value. The grant date fair value for stock options and stock purchase rights is estimated using the Black-Scholes-Merton option-pricing valuation model. The grant date fair value of service-based restricted stock units ("RSUs") is calculated based on the market price on the date of grant, reduced by estimated dividend yield prior to vesting. The grant date fair value of restricted stock units which vest upon meeting certain market- and performance-based conditions ("PSUs") is estimated using the Monte-Carlo simulation method including the effect of the market condition. Stock-based compensation expense is recognized ratably over the respective requisite

service periods of the awards and forfeitures are accounted for when they occur. For PSUs, the Company recognizes compensation expense using its estimate of probable outcome at the end of the performance period (i.e., the estimated performance against the performance targets). The Company periodically adjusts the cumulative stock-based compensation expense recorded when the probable outcome for the PSUs is updated based upon changes in actual and forecasted financial results.

Product Warranty

All of the Company's products are covered by standard warranty to be free from defects in material and workmanship for periods ranging from one year to three years. The warranty period varies by product and by region. The Company’s standard warranty does not provide a service beyond assuring that the product complies with agreed-upon specifications and is not sold separately. The standard warranty the Company provides qualifies as an assurance warranty and is not treated as a separate performance obligation. The Company estimates cost of product warranties at the time the related revenue is recognized based on historical warranty claim rates, historical costs, and knowledge of specific product failures that are outside of the Company's typical experience. The Company accrues a warranty liability for estimated costs to provide products, parts or services to repair or replace products in satisfaction of the warranty obligation. Each quarter, the Company reevaluates estimates to assess the adequacy of recorded warranty liabilities. When the Company experiences changes in warranty claim activity or costs associated with fulfilling those claims, the warranty liability is adjusted accordingly.

Comprehensive Income (Loss)

Comprehensive income (loss) is defined as the total change in shareholders' equity during the period other than from transactions with shareholders. Comprehensive income (loss) consists of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) is comprised of currency translation adjustments from those entities not using the U.S. Dollar as their functional currency, net deferred gains and losses and prior service costs and credits for defined benefit pension plans, and net deferred gains and losses on hedging activity.

Treasury Shares

The Company periodically repurchases shares in the market at fair value. Shares repurchased are recorded at cost as a reduction of total shareholders' equity. Treasury shares held may be reissued to satisfy the exercise of employee stock options and purchase rights, the vesting of restricted stock units, and acquisitions, or may be canceled with shareholder approval. Treasury shares that are reissued are accounted for using the first-in, first-out basis.

Derivative Financial Instruments

The Company enters into foreign exchange forward contracts to reduce the short-term effects of currency fluctuations on certain foreign currency receivables or payables and to hedge against exposure to changes in currency exchange rates related to its subsidiaries' forecasted inventory purchases.

Gains or losses from changes in the fair value of forward contracts that offset transaction losses or gains on foreign currency receivables or payables are recognized immediately and included in other income (expense), net in the consolidated statements of operations.

Gains and losses for changes in the fair value of the effective portion of the Company's forward contracts related to forecasted inventory purchases are deferred as a component of accumulated other comprehensive loss until the hedged inventory purchases are sold, at which time the gains or losses are reclassified to cost of goods sold. The Company presents the earnings impact from forward points in the same line item that is used to present the earnings impact of the hedged item (i.e. cost of goods sold) for hedging forecasted inventory purchases.

Restructuring Charges

The Company's restructuring charges consist of employee severance, one-time termination benefits and ongoing benefits related to the reduction of its workforce, and other costs. Liabilities for costs associated with a restructuring activity are measured at fair value and are recognized when the liability is incurred, as opposed to when management commits to a restructuring plan. One-time termination benefits are expensed at the date the entity notifies the employee, unless the employee must provide future service, in which case the benefits are expensed ratably over the future service period. Ongoing benefits are expensed when restructuring activities are probable and the benefit amounts are estimable. Other costs primarily consist of legal, consulting, and other costs related to employee terminations, and are expensed when incurred. Termination benefits are calculated based on regional benefit practices and local statutory requirements.

New Accounting Pronouncements Not Yet Adopted

In November 2023, the Financial Accounting Standard Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. ASU 2023-07 improves reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses that are regularly provided to the chief operating decision maker. In addition, ASU 2023-07 requires that all existing annual disclosures about segment profit or loss must be provided on an interim basis and clarifies that single reportable segment entities are subject to the disclosure requirement under Topic 280 in its entirety. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023 and interim periods within those fiscal years beginning after December 15, 2024. A public entity should apply ASU 2023-07 retrospectively to all prior periods presented in the financial statements. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2023-07 on its consolidated financial statements and related disclosures.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. ASU 2023-09 requires additional disclosures related to rate reconciliation, income taxes paid, and other disclosures. Under ASU 2023-09, for each annual period presented, public entities are required to (1) disclose specific categories in the tabular rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold. In addition, ASU 2023-09 requires all reporting entities to disclose on an annual basis the amount of income taxes paid disaggregated by federal, state, and foreign taxes as well as the amount of income taxes paid by individual jurisdiction. ASU 2023-09 is effective for public business entities for annual periods beginning after December 15, 2024 and can be applied on a prospective basis with an option to apply the standard retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2023-09 on its consolidated financial statements and related disclosures.

Net Income Per Share

12 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Net Income Per Share

The following table summarizes the computations of basic and diluted net income per share for fiscal years 2024, 2023 and 2022 (in thousands except per share amounts):


	Years Ended March 31,
	2024		2023		2022
Net income	$	612,143	$	364,575	$	644,513



Shares used in net income per share computation:
Weighted average shares outstanding - basic	156,776		162,302		167,447
Effect of potentially dilutive equivalent shares	1,395		1,402		2,967
Weighted average shares outstanding - diluted	158,171		163,704		170,414

Net income per share:
Basic	$	3.90	$	2.25	$	3.85
Diluted	$	3.87	$	2.23	$	3.78

Share equivalents attributable to outstanding stock options, restricted stock units and employee share purchase plans ("ESPP") totaling 1.1 million, 2.0 million, and 2.0 million shares during fiscal years 2024, 2023 and 2022, respectively, were excluded from the calculation of diluted net income per share because their effect would have been anti-dilutive. A small number of PSUs were not included in the dilutive net income per share calculation

because all necessary conditions had not been satisfied by the end of the respective period, and those shares were not issuable if the end of the reporting period were the end of the performance contingency period.

Employee Stock-Based Compensation

12 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Employee Stock-Based Compensation

As of March 31, 2024, the Company offers the 2006 Employee Share Purchase Plan (Non-U.S.), as amended and restated ("2006 ESPP"), the 1996 Employee Share Purchase Plan (U.S.), as amended and restated ("1996 ESPP"), and the 2006 Stock Incentive Plan ("2006 Plan") as amended and restated. Shares issued to employees as a result of purchases or exercises under these plans are generally issued from shares held in treasury stock.

Under the 1996 ESPP and 2006 ESPP plans, eligible employees may purchase shares at the lower of 85% of the fair market value at the beginning or the end of each offering period, which is generally six months. Subject to continued participation in these plans, purchase agreements are automatically executed at the end of each offering period. An aggregate of 29.0 million shares were reserved for issuance under the 1996 and 2006 ESPP plans. As of March 31, 2024, a total of 3.1 million shares were available for new awards under these plans.

The 2006 Plan provides for the grant to eligible employees and non-employee directors of stock options, stock appreciation rights, and restricted stock units. Awards under the 2006 Plan may be conditioned on continued employment, the passage of time or the satisfaction of performance and market vesting criteria. The 2006 Plan, as amended, has no expiration date. On June 29, 2022, the Board authorized 3.3 million additional shares for issuance under the 2006 Plan. An aggregate of 33.8 million shares were reserved for issuance under the 2006 Plan. As of March 31, 2024, a total of 7.6 million shares were available for new awards under this plan.

Stock options granted to employees under the 2006 Plan have terms not exceeding ten years and are issued at exercise prices not less than the fair market value on the date of grant.

Service-based restricted stock units ("RSUs") granted to employees under the 2006 Plan generally vest in four equal annual installments on the grant date anniversary. RSUs granted to non-executive board members under the 2006 Plan vest on the grant date anniversary, or if earlier and only if the non-executive board member is not re-elected as a director at the annual general meeting, the date of the next annual general meeting following the grant date.

Restricted stock units with certain market- and performance-based conditions ("PSUs") granted to employees under the 2006 Plan generally vest at the end of the three-year performance period upon meeting predetermined financial metrics over three years, with the number of shares to be received upon vesting determined based on constant currency revenue growth rate, adjusted operating income (loss) and the Company's total shareholder return ("TSR") relative to the performance of companies in the Russell 3000 Index over the same three years period.

The following table summarizes share-based compensation expense and total income tax benefit recognized for fiscal years 2024, 2023 and 2022 (in thousands):


	Years Ended March 31,
	2024		2023		2022
Cost of goods sold	$	8,004	$	5,635	$	6,695
Marketing and selling	35,780		34,707		37,796
Research and development	17,836		15,292		18,356
General and administrative	21,269		15,148		30,632
Total share-based compensation expense	82,889		70,782		93,479

Income tax benefit	(15,305)		(9,750)		(26,987)
Total share-based compensation expense, net of income tax benefit	$	67,584	$	61,032	$	66,492

The income tax benefit in the respective periods primarily consisted of tax benefits related to the share-based compensation expense for the period and direct tax benefit realized, including net excess tax benefits recognized from share-based awards vested or exercised during the period.

Share-based compensation costs capitalized as part of inventory were $6.3 million, $5.6 million, and $5.2 million for the fiscal year ended March 31, 2024, 2023 and 2022, respectively.

As of March 31, 2024, there was $137.7 million of total future stock-based compensation cost to be recognized over a weighted-average period of 2.3 years.

The estimates of share-based compensation expense require a number of complex and subjective assumptions including stock price volatility, employee exercise patterns, probability of achievement of the set performance condition, dividend yield, related tax effects and the selection of an appropriate fair value model.

The grant date fair value of the stock options and ESPP using the Black-Scholes-Merton option-pricing valuation model and the grant date fair value of the PSUs using the Monte-Carlo simulation method are determined with the following assumptions:


	Stock Options(1)			Employee Stock Purchase Plans
	Year Ended March 31,			Years Ended March 31,
	2022				2024			2023			2022
Expected dividend rate	1.18		%		1.61		%	1.78		%	1.03		%
Risk-free interest rate	1.99		%		5.36		%	3.86		%	0.27		%
Expected volatility	34		%		33		%	46		%	35		%
Expected term (years)	6.2				0.5			0.5			0.5
Weighted average grant date fair value per share	$	25.88			$	19.02		$	16.32		$	23.55

(1) No stock options were granted for fiscal years 2024 and 2023.


PSUs	Years Ended March 31,
	2024		2023		2022
Expected dividend rate	1.90	%	1.46	%	0.78	%
Risk-free interest rate	3.83	%	2.78	%	0.31	%
Expected volatility	41	%	39	%	37	%
Expected term (years)	3.0		3.0		3.0

The expected dividend rate assumption is based on the Company's history and future expectations of dividend payouts. The unvested PSUs or unexercised options are not eligible for these dividends. The expected term is based on the purchase offerings periods expected to remain outstanding for employee stock purchase plan or the performance period for PSUs. The expected term for stock options represents the estimated period of time until option exercise. Since the Company has limited historical stock option exercise experience, the Company used the simplified method in estimating the expected term, which is calculated as the average of the sum of the vesting term and the original contractual term of the stock options. Expected volatility is based on historical volatility using the Company's daily closing prices, or including the volatility of components of the Russell 3000 Index for PSUs, over the expected term. The Company considers the historical price volatility of its shares as most representative of future volatility. The risk-free interest rate assumptions are based upon the implied yield of U.S. Treasury zero-coupon issues or Switzerland government bonds appropriate for the expected term of the Company's share-based awards.

For PSUs, the Company estimates the probability and timing of the achievement of the set performance condition at the time of the grant based on the historical financial performance and the financial forecast in the remaining performance period and reassesses the probability in subsequent periods when actual results or new information become available.

A summary of the Company's stock option activities under all stock plans for fiscal years 2024, 2023 and 2022 is as follows:


	Number of Shares	Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value
	(In thousands)			(Years)	(In thousands)
Outstanding, March 31, 2021	622
Granted	842
Exercised	(71)				$	5,573

Outstanding, March 31, 2022	1,393

Exercised	(155)				$	6,482
Forfeited	(118)
Outstanding, March 31, 2023	1,120	$	66	7.6	$	7,491
Exercised	(181)	$	43		$	6,160
Forfeited	(176)	$	80
Outstanding, March 31, 2024	763	$	68	7.0	$	16,243
Vested and exercisable, March 31, 2024	489	$	61	6.5	$	13,960

A summary of the Company's RSU and PSU activities for fiscal years 2024, 2023 and 2022 is as follows:


	Number of Shares	Weighted-Average Grant Date Fair Value		Aggregate Fair Value
	(In thousands)			(In thousands)
Outstanding, March 31, 2021	3,643	$	45
Granted—RSUs	868	$	103
Granted—PSUs	203	$	124
Vested	(1,463)			$	133,977
Forfeited	(205)
Outstanding, March 31, 2022	3,046	$	68
Granted—RSUs	1,584	$	53
Granted—PSUs	407	$	69
Vested	(1,143)			$	85,152
Forfeited	(438)
Outstanding, March 31, 2023	3,456	$	66
Granted—RSUs	1,396	$	59
Granted—PSUs	457	$	67
Vested	(1,200)	$	58	$	92,340
Forfeited	(631)	$	73
Outstanding, March 31, 2024	3,478	$	65

The shares outstanding as of March 31, 2024 above include 0.7 million shares of PSUs. The Company presents the number of PSUs and weighted-average grant date fair value at 100 percent of the performance target; however, the aggregate fair value of shares vested is based on the actual number of PSUs vested according to achievement of the financial metrics over the performance period.

Employee Benefit Plans

12 Months Ended

Mar. 31, 2024

Employee Benefit Plans

Defined Benefit Plans

Certain of the Company's subsidiaries sponsor defined benefit pension plans or non-retirement post-employment benefits covering substantially all of their employees. Benefits are provided based on employees' years

of service and earnings, or in accordance with applicable employee benefit regulations. The Company's practice is to fund amounts sufficient to meet the requirements set forth in the applicable employee benefit and tax regulations.

The Company recognizes the overfunded or underfunded status of defined benefit pension plans and non-retirement post-employment benefit obligations as an asset or liability in its consolidated balance sheets and recognizes changes in the funded status of defined benefit pension plans in the year in which the changes occur through accumulated other comprehensive income (loss), which is a component of shareholders' equity. Each plan's assets and benefit obligations are generally remeasured as of March 31 each year.

The net periodic benefit cost of the defined benefit pension plans and the non-retirement post-employment benefit obligations for fiscal years 2024, 2023 and 2022 was as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Service costs	$	11,479	$	13,195	$	14,693
Interest costs	3,844		2,408		920
Expected return on plan assets	(6,950)		(3,754)		(2,930)
Amortization:

Net prior service credit recognized	(500)		(458)		(465)
Net actuarial gain recognized	(179)		(3,047)		(2,158)
Curtailment gain	—		(4,225)		—
Settlement loss (gain)	922		(339)		—
Total net periodic benefit cost	$	8,616	$	3,780	$	10,060

The components of net periodic benefit cost other than the service costs component are included in other income (expense), net in the consolidated statements of operations.

The changes in projected benefit obligations for fiscal years 2024 and 2023 were as follows (in thousands):


	Years Ended March 31,
	2024		2023
Projected benefit obligations, beginning of the year	$	195,336	$	207,551
Service costs	11,479		13,195
Interest costs	3,844		2,408
Plan participant contributions	6,731		6,870
Actuarial loss (gain)	13,737		(22,965)
Benefits paid	(2,405)		(2,646)
Transfer of prior vested benefits	6,775		11,579
Plan amendments	380		—
Settlement	(22,522)		(15,348)
Curtailment	—		(3,923)
Administrative expense paid	(158)		(147)
Currency exchange rate changes	280		(1,238)
Projected benefit obligations, end of the year	$	213,477	$	195,336

The accumulated benefit obligation for all defined benefit pension plans as of March 31, 2024 and 2023 was $184.8 million and $170.3 million, respectively.

Actuarial loss (gain) related to the change in the benefit obligation for the Company's pension plans for fiscal years 2024 and 2023 were primarily due to changes in discount rate.

The changes in the fair value of plan assets for fiscal years 2024 and 2023 were as follows (in thousands):


	Years Ended March 31,
	2024		2023
Fair value of plan assets, beginning of the year	$	162,599	$	156,118
Actual return on plan assets	7,558		(6,008)
Employer contributions	10,888		11,645
Plan participant contributions	6,731		6,870
Benefits paid	(2,405)		(2,646)
Transfer of prior vested benefits	6,775		11,579
Settlement	(22,522)		(15,348)
Administrative expenses paid	(158)		(147)
Currency exchange rate changes	1,174		536
Fair value of plan assets, end of the year	$	170,640	$	162,599

The Company's investment objectives are to ensure that the assets of its defined benefit plans are invested to provide an optimal rate of investment return on the total investment portfolio, consistent with the assumption of a reasonable risk level, and to ensure that pension funds are available to meet the plans' benefit obligations as they become due. The Company believes that a well-diversified investment portfolio will result in the highest attainable investment return with an acceptable level of overall risk. Investment strategies and allocation decisions are also governed by applicable governmental regulatory agencies. The Company's investment strategy with respect to its largest defined benefit plan, which is available only to Swiss employees, is to invest per the following allocation: 33% in equities, 28% in bonds, 28% in real estate, 4% in cash and cash equivalents and the remaining in other investments. The Company can invest in real estate funds, commodity funds, and hedge funds depending upon economic conditions.

The following tables present the fair value of the defined benefit pension plan assets by major categories and by levels within the fair value hierarchy as of March 31, 2024 and 2023 (in thousands):


	March 31,
	2024				2023
	Level 1		Level 2		Total		Level 1		Level 2		Total
Cash and cash equivalents	$	14,375	$	—	$	14,375	$	7,071	$	—	$	7,071
Equity securities	54,534		—		54,534		51,963		—		51,963
Debt securities	42,153		—		42,153		43,493		—		43,493
Real estate funds	32,286		10,141		42,427		21,197		23,710		44,907
Hedge funds	—		10,400		10,400		606		7,907		8,513

Other	6,335		416		6,751		6,248		404		6,652
Total fair value of plan assets	$	149,683	$	20,957	$	170,640	$	130,578	$	32,021	$	162,599

The funded status of the plans was as follows (in thousands):


	Years Ended March 31,
	2024		2023
Fair value of plan assets	$	170,640	$	162,599
Less: projected benefit obligations	213,477		195,336
Underfunded status	$	(42,837)	$	(32,737)

Amounts recognized on the balance sheets for the plans were as follows (in thousands):


	March 31,
	2024		2023
Current liabilities	$	1,391	$	1,407
Non-current liabilities	41,446		31,330
Total liabilities	$	42,837	$	32,737

Amounts recognized in accumulated other comprehensive income (loss) related to defined benefit pension plans were as follows (in thousands):


	March 31,
	2024		2023
Net prior service credits	$	1,385	$	2,201
Net actuarial gain (loss)	(6,445)		5,690
Accumulated other comprehensive income (loss)	(5,060)		7,891
Deferred taxes	(3,335)		(3,366)
Accumulated other comprehensive income (loss), net of tax	$	(8,395)	$	4,525

The actuarial assumptions for the defined benefit plans were as follows:


	Years Ended March 31,
	2024	2023
Benefit Obligations:
Discount rate	1.50%- 7.00%	1.00% - 7.25%
Estimated rate of compensation increase	2.25% - 10.00%	2.25% - 10.00%
Cash balance interest credit rate	0.50% - 1.75%	0.00% - 1.75%


	Years Ended March 31,
	2024	2023	2022
Net Periodic Costs:
Discount rate	1.50% - 7.25%	0.50% - 6.75%	0.25% - 6.00%
Estimated rate of compensation increase	2.25% - 10.00%	2.00% - 10.00%	2.00% - 10.00%
Expected average rate of return on plan assets	0.50% - 4.50%	1.00% - 2.50%	1.00% - 2.25%
Cash balance interest credit rate	0.50% - 1.75%	0.00% - 1.75%	0.00% - 1.75%

The discount rate is estimated based on corporate bond yields or securities of similar quality in the respective country, with a duration approximating the period over which the benefit obligations are expected to be paid. The Company bases the compensation increase assumptions on historical experience and future expectations. The expected average rate of return for the Company's defined benefit pension plans represents the average rate of return expected to be earned on plan assets over the period that the benefit obligations are expected to be paid, based on government bond notes in the respective country, adjusted for corporate risk premiums as appropriate.

The following table reflects the benefit payments that the Company expects the plans to pay in the periods noted (in thousands):


Years Ending March 31,
2025	$	13,068
2026	12,113
2027	14,465
2028	13,055
2029	12,959
Next five fiscal years	68,520
Total expected benefit payments by the plan	$	134,180

The Company expects to contribute $8.5 million to its defined benefit pension plans during fiscal year 2025.

Defined Contribution Plans

Certain of the Company's subsidiaries have defined contribution employee benefit plans covering all or a portion of their employees. Contributions to these plans are discretionary for certain plans and are based on specified or statutory requirements for others. The charges to expense for these plans for fiscal years 2024, 2023 and 2022, were $14.4 million, $14.4 million and $13.9 million, respectively.

Deferred Compensation Plan

One of the Company's subsidiaries offers a deferred compensation plan that permits eligible employees to make 100% vested salary and incentive compensation deferrals within established limits. The Company does not make contributions to the plan.

The deferred compensation plan's assets consist of marketable securities and are included in other assets on the consolidated balance sheets. The marketable securities were recorded at a fair value of $29.2 million and $28.2 million as of March 31, 2024 and 2023, respectively, based on quoted market prices (see Note 9). The Company also had deferred compensation liability of $29.2 million and $28.2 million, which are included in other non-current liabilities on the consolidated balance sheets as of March 31, 2024 and 2023, respectively. Earnings, gains and losses on deferred compensation investments are included in other income (expense), net (see Note 6) and corresponding changes in deferred compensation liability are included in operating expenses and cost of goods sold in the consolidated statements of operations.

Other Income (Expense), Net

12 Months Ended

Mar. 31, 2024

Other Income and Expenses [Abstract]

Other Income (Expense), Net

Other income (expense), net comprises of the following (in thousands):


	Years Ended March 31,
	2024		2023		2022
Investment gain (loss) related to the deferred compensation plan	$	4,320	$	(1,961)	$	1,231
Currency exchange loss, net	(8,770)		(7,337)		(4,604)
Loss on investments, net (1)	(14,674)		(14,073)		(1,683)
Non-service cost net pension income and other (2)	2,748		10,093		5,616
Other income (expense), net	$	(16,376)	$	(13,278)	$	560

(1) Includes realized gain (loss) on sales of investments, unrealized gain (loss) from the change in fair value of investments, gain (loss) on equity-method investments, and impairment of investments during the periods presented, as applicable (see Note 9).

(2) Includes the components of net periodic benefit cost of defined benefit plans other than the service cost component (see Note 5).

Income Taxes

12 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Income Taxes

The Company is incorporated in Switzerland but operates in various countries with differing tax laws and rates. Further, a portion of the Company's income before taxes and the provision for (benefit from) income taxes is generated outside of Switzerland.

Income from continuing operations before income taxes for fiscal years 2024, 2023 and 2022 is summarized as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Swiss	$	502,291	$	282,970	$	579,258
Non-Swiss	119,305		180,552		196,560
Income before taxes	$	621,596	$	463,522	$	775,818

The provision for (benefit from) income taxes is summarized as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Current:
Swiss	$	26,833	$	19,405	$	59,659
Non-Swiss	25,044		48,829		44,094
Deferred:

Swiss	(47,517)		26,629		29,198
Non-Swiss	5,093		4,085		(1,646)
Provision for income taxes	$	9,453	$	98,947	$	131,305

The difference between the provision for (benefit from) income taxes and the expected tax provision (tax benefit) at the Swiss statutory income tax rate of 8.5% is reconciled below (in thousands):


	Years Ended March 31,
	2024		2023		2022
Expected tax provision at statutory income tax rates	$	52,836	$	39,399	$	65,945
Income taxes at different rates	47,595		38,467		61,296
Research and development tax credits	(9,738)		(152)		(5,957)
Swiss Tax Ruling	(50,051)		—		—
Executive compensation	407		749		4,683
Stock-based compensation	4,019		5,736		(9,141)
Deferred tax effects from TRAF	(33,926)		—		—
Valuation allowance	4,780		908		887
Impairment	—		1,881		—
Restructuring charges / (credits)	—		(1,764)		—
Unrecognized tax benefits	11,535		13,284		16,577
Audit settlement	—		—		(3,655)
FDII deduction	(18,675)		—		—
Other, net	671		439		670
Provision for income taxes	$	9,453	$	98,947	$	131,305

The canton of Vaud completed the legislative process to enact the Swiss Federal Act on Tax Reform and AHV Financing (“TRAF”), a reform to better align the Swiss tax system to international tax standards on March 20, 2020 that took effect as of January 1, 2020. In March 2020, the Company reached an agreement with the Vaud Tax Administration that would allow for an increase in the tax basis of goodwill, as a transition measure under TRAF, to be amortized over ten years beginning on January 1, 2020. During the fiscal year ended March 31, 2024, the Company reached an agreement to remeasure the tax basis of goodwill under TRAF with the canton of Vaud, which resulted in an income tax benefit of $25.1 million, net of assessment for uncertain tax positions. The remeasurement of the step-up will be amortized over the remaining ten-year amortization period.

On December 29, 2023, a change to the cantonal tax legislation was published. According to the law approved by the Vaud parliament, a progressive scale will be applicable for cantonal tax purposes resulting in an increase from the current tax rate of 13.61% to 14.28% effective fiscal year 2025. The increase in tax rate resulted in a tax benefit of $5.1 million due to a remeasurement of the Company's Swiss deferred tax assets in the fiscal year ended March 31, 2024.

On March 28, 2024, the Company executed a Swiss Tax Ruling with the canton of Vaud that provides future tax benefit for ten years. The Swiss Tax Ruling resulted in an income tax benefit of $50.1 million, which will be utilized over a ten-year period.

The Tax Cuts and Jobs Act enacted Section 250, which provides for a deduction with respect to Global Intangible Low-Taxed Income ("GILTI") and Foreign-Derived Intangible Income ("FDII") in the US. The application of this tax incentive is inherently complex. During the fiscal year ended March 31, 2024, the Company analyzed the applicability of FDII and determined that this tax incentive applies in fiscal 2021 to 2023 tax years. As a result, the Company realized a tax benefit of $18.7 million related to FDII. The Company has also concluded that any GILTI tax since the enactment of Tax Cuts and Jobs Act is immaterial.

Deferred income tax assets and liabilities consist of the following (in thousands):


	March 31,
	2024		2023
Deferred tax assets:
Tax attributes carryforward	$	43,846	$	36,700
Future tax deduction from Swiss Tax Ruling	49,755		—
Accruals	77,181		85,786
Depreciation and amortization	121		707
Tax step-up of goodwill from TRAF	105,942		100,514
Share-based compensation	13,718		11,093
Gross deferred tax assets	290,563		234,800
Valuation allowance	(35,536)		(30,766)
Deferred tax assets after valuation allowance	255,027		204,034
Deferred tax liabilities:
Acquired intangible assets and other	(30,901)		(34,848)
Deferred tax liabilities	(30,901)		(34,848)
Deferred tax assets, net	$	224,126	$	169,186

Management regularly assesses the ability to realize deferred tax assets recorded in the Company's entities based upon the weight of available evidence, including such factors as recent earnings history and expected future taxable income. In the event that the Company changes its determination as to the amount of deferred tax assets that can be realized, the Company will adjust its valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

The Company had a valuation allowance against deferred tax assets of $35.5 million at March 31, 2024, compared to $30.8 million at March 31, 2023. The Company had a valuation allowance of $35.3 million as of March 31, 2024 against deferred tax assets in the state of California, an increase from $30.8 million as of March 31,

2023 from activities during the year. The Company determined that it is more likely than not that the Company would not generate sufficient taxable income in the future to utilize such deferred tax assets.

As of March 31, 2024, the Company had net operating loss carryforwards in Switzerland for income tax purposes of $15.0 million which will begin to expire in fiscal year 2028. The Company had net operating loss and tax credit carryforwards in the United States for income tax purposes of $55.0 million and $79.7 million, respectively, as of March 31, 2024. Unused net operating loss carryforwards will expire at various dates beginning in fiscal year 2030. Certain net operating loss carryforwards in the United States relate to acquisitions and, as a result, are limited in the amount that can be utilized in any one year. The tax credit carryforwards will begin to expire in fiscal year 2028.

Swiss income taxes and non-Swiss withholding taxes associated with the repatriation of earnings or for other temporary differences related to investments in non-Swiss subsidiaries have not been provided for, as the Company intends to reinvest the earnings of such subsidiaries indefinitely. If these earnings were distributed to Switzerland in the form of dividends or otherwise, or if the shares of the relevant non-Swiss subsidiaries were sold or otherwise transferred, the Company may be subject to additional Swiss income taxes and non-Swiss withholding taxes. As of March 31, 2024, the cumulative amount of unremitted earnings of non-Swiss subsidiaries for which no income taxes have been provided is approximately $426.2 million. The amount of unrecognized deferred income tax liability related to these earnings is estimated to be approximately $16.0 million.

The Company follows a two-step approach in recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement.

As of March 31, 2024 and 2023, the total amount of unrecognized tax benefits due to uncertain tax positions was $192.7 million and $186.8 million, respectively, all of which would affect the effective income tax rate if recognized.

As of March 31, 2024 and 2023, the Company had $112.6 million and $106.4 million, respectively, in non-current income taxes payable, including interest and penalties, related to the Company's income tax liability for uncertain tax positions.

The aggregate changes in gross unrecognized tax benefits in fiscal years 2024, 2023 and 2022 were as follows (in thousands).


March 31, 2021	$	163,253
Lapse of statute of limitations	(4,232)
Settlements with taxing authorities	(2,015)
Increases in balances related to tax positions taken during the year	22,366
March 31, 2022	$	179,372
Lapse of statute of limitations	(3,586)
Increases in balances related to tax positions taken during the year	15,214
March 31, 2023	$	191,000
Lapse of statute of limitations	(3,863)
Settlements with taxing authorities	41
Increases in balances related to tax positions taken during prior years	705
Increases in balances related to tax positions taken during the year	22,332
March 31, 2024	$	210,215

The Company recognizes interest and penalties related to unrecognized tax positions in income tax expense. The Company recognized $1.7 million and $2.7 million, in interest and penalties related to unrecognized tax positions in income tax expense during fiscal years 2024 and 2023, respectively. As of March 31, 2024 and 2023, the Company had $7.8 million, and $6.1 million, respectively, of accrued interest and penalties related to uncertain tax positions.

The Company files Swiss and foreign tax returns. The Company received final tax assessments in Switzerland through fiscal year 2019. For other material foreign jurisdictions such as the United States and China, the Company is generally not subject to tax examinations for years prior to fiscal year 2020 and calendar year 2020, respectively. In the United States, the federal and state tax agencies have the authority to examine periods prior to fiscal year 2020, to the extent allowed by law, where tax attributes were generated, carried forward, and being utilized in subsequent years. The Company is under examination in foreign tax jurisdictions. If the examinations are resolved unfavorably, there is a possibility they may have a material negative impact on its results of operations.

Although the Company has adequately provided for uncertain tax positions, the provisions on these positions may change as revised estimates are made or the underlying matters are settled or otherwise resolved. During the next 12 months, it is reasonably possible that the amount of unrecognized tax benefits could increase or decrease significantly due to changes in tax law in various jurisdictions, due to lapse in statute of limitations and other factors, it is not possible to provide a range of potential changes.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//740/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-14

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-21

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 270
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482526/740-270-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-17

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-2

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482603/740-30-50-2

+ Details

Balance Sheet Components

12 Months Ended

Mar. 31, 2024

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

The following table presents the components of certain balance sheet asset amounts as of March 31, 2024 and 2023 (in thousands):


	March 31,
	2024		2023
Accounts receivable, net:
Accounts receivable	$	744,836	$	851,576
Allowance for doubtful accounts	—		(86)
Allowance for sales returns	(10,180)		(10,146)
Allowance for cooperative marketing arrangements	(41,634)		(40,495)
Allowance for customer incentive programs	(60,027)		(71,645)
Allowance for pricing programs	(91,280)		(98,822)
	$	541,715	$	630,382
Inventories:
Raw materials	$	65,209	$	171,790
Finished goods	357,304		511,103
	$	422,513	$	682,893
Other current assets:
VAT receivables	$	41,172	$	60,343
Prepaid expenses and other assets	105,098		82,533
	$	146,270	$	142,876
Property, plant and equipment, net:
Plant, buildings and improvements	$	84,189	$	69,360
Equipment and tooling	296,857		309,151
Computer equipment	26,785		31,535
Software	86,161		79,118
	493,992		489,164
Less: accumulated depreciation and amortization	(387,293)		(396,855)
	106,699		92,309
Construction-in-process	7,180		26,399
Land	2,710		2,795
	$	116,589	$	121,503
Other assets:
Deferred tax assets	$	224,831	$	171,989
Right-of-use assets	61,163		67,330
Investments in privately held companies	28,662		33,323
Investments for deferred compensation plan	29,174		28,213
Other assets	6,364		15,438
	$	350,194	$	316,293

The following table presents the components of certain balance sheet liability amounts as of March 31, 2024 and 2023 (in thousands):


	March 31,
	2024		2023
Accrued and other current liabilities:
Accrued customer marketing, pricing and incentive programs	$	170,371	$	206,546
Accrued personnel expenses	145,473		103,592
Accrued sales return liability	30,098		49,462
Accrued loss for inventory purchase commitments	29,349		46,608
VAT payable	28,253		33,328
Warranty liabilities	30,270		28,861
Income taxes payable	24,196		18,788
Deferred revenue (1)	19,262		11,017
Operating lease liabilities	15,107		12,655
Contingent consideration	1,215		6,629
Other current liabilities	143,668		125,653
	$	637,262	$	643,139
Other non-current liabilities:
Operating lease liabilities	$	61,920	$	58,361
Employee benefit plan obligations	42,707		32,421
Obligation for deferred compensation plan	29,174		28,213
Deferred revenue (1)	21,097		8,277
Warranty liabilities	14,384		12,025
Deferred tax liabilities	705		2,803

Other non-current liabilities	2,603		4,595
	$	172,590	$	146,695

(1) Includes deferred revenue for PCS and other services.

Fair Value Measurements

12 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

The Company considers fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. The Company utilizes the following three-level fair value hierarchy to establish the priorities of the inputs used to measure fair value:

•Level 1—Quoted prices in active markets for identical assets or liabilities.

•Level 2—Observable inputs other than quoted market prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

•Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

The following table presents the Company's financial assets and liabilities that were accounted for at fair value on a recurring basis, excluding assets related to the Company's defined benefit pension plans, classified by the level within the fair value hierarchy (in thousands):


	March 31, 2024						March 31, 2023
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets:
Cash equivalents	$	1,042,604	$	—	$	—	$	661,884	$	—	$	—
Investments for deferred compensation plan included in other assets:
Cash	$	312	$	—	$	—	$	41	$	—	$	—
Common stock	573		—		—		988		—		—
Money market funds	8,129		—		—		9,606		—		—
Mutual funds	20,160		—		—		17,578		—		—
Total investments for deferred compensation plan	$	29,174	$	—	$	—	$	28,213	$	—	$	—

Currency derivative assets included in other current assets	$	—	$	913	$	—	$	—	$	107	$	—

Liabilities:
Contingent consideration included in accrued and other current liabilities	$	—	$	—	$	1,215	$	—	$	—	$	6,629

Currency derivative liabilities included in accrued and other current liabilities	$	—	$	573	$	—	$	—	$	2,187	$	—

Contingent Consideration for Business Acquisitions

The following table summarizes the change in the Company's contingent consideration balance during fiscal year 2024 and 2023 (in thousands):


	Year Ended March 31,
	2024		2023
Beginning of the period	$	6,629	$	12,259
Fair value of contingent consideration upon acquisition	—		2,151
Change in fair value of contingent consideration	(250)		—
Settlements of contingent consideration	(5,247)		(5,954)
Effect of foreign currency exchange rate changes	83		(1,827)
End of the period	$	1,215	$	6,629

Investments for Deferred Compensation Plan

The marketable securities for the Company's deferred compensation plan were recorded at a fair value of $29.2 million and $28.2 million as of March 31, 2024 and 2023, respectively, based on quoted market prices. Quoted market prices are observable inputs that are classified as Level 1 within the fair value hierarchy. Unrealized gains (losses) related to marketable securities for fiscal years 2024, 2023 and 2022 were not material and were included in other income (expense), net (see Note 6) and corresponding changes in the deferred compensation liability were included in operating expenses and cost of goods sold, in the Company's consolidated statements of operations.

Equity Method Investments

The Company has certain non-marketable investments included in other assets that are accounted for as equity method investments, with a carrying value of $18.0 million and $20.5 million as of March 31, 2024 and 2023, respectively. Gains (losses) related to equity method investments for fiscal years 2024, 2023 and 2022 were not material and are included in other income (expense), net in the Company's consolidated statements of operations (see Note 6).

During fiscal year 2023, the Company recorded an impairment charge, before tax, of $21.4 million for one of its equity method investments as it was determined that the carrying value of the investment was not recoverable. The impairment charge is included in other income (expense), net in the Company's consolidated statement of operations for fiscal year 2023. There was no impairment of equity method investments during fiscal years 2022 and 2024.

Assets Measured at Fair Value on a Nonrecurring Basis

Financial Assets. The Company has certain equity investments without readily determinable fair values due to the absence of quoted market prices, the inherent lack of liquidity, and the fact that inputs used to measure fair value are unobservable and require management's judgment. When certain events or circumstances indicate that impairment may exist, the Company revalues the investments using various assumptions, including the financial metrics and ratios of comparable public companies. The carrying value is also adjusted for observable price changes with the same or similar security from the same issuer. The amount of these equity investments without readily determinable fair value included in other assets was $10.1 million and $12.6 million as of March 31, 2024 and 2023, respectively. During fiscal year 2023, the Company recorded an unrealized gain, before tax, of $6.9 million for its investment in a private company as a result of observable price changes for similar securities issued by this company (level 2 fair value measurement). There was no impairment of these investments during fiscal year 2022 and the impairment charges related to these investments were not material during fiscal years 2023 and 2024.

During fiscal year 2024, the Company recorded an impairment loss, before tax, of $9.6 million as a result of the write-off of a note receivable which has been deemed no longer recoverable. This note receivable was previously obtained in conjunction with an exchange transaction related to the Company's investment in a privately held company. The impairment loss is included in other income (expense), net, in the Company's consolidated statement of operations for the fiscal year 2024.

Non-Financial Assets. Goodwill, intangible assets, and property, plant and equipment, are not required to be measured at fair value on a recurring basis. However, if the Company is required to evaluate these non-financial assets for impairment, whether due to certain triggering events or because of the required annual impairment test, and a resulting impairment is recorded to reduce the carrying value to the fair value, the non-financial assets are measured at fair value during such period. See Note 2 for additional information about how the Company tests various asset classes for impairment. During fiscal year 2024 and fiscal year 2022, the Company recorded impairment charges of $3.5 million and $7.0 million, respectively, related to intangible assets. There was no impairment of non-financial assets during the fiscal year of 2023.

Derivative Financial Instruments

12 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Under certain agreements with the respective counterparties to the Company's derivative contracts, subject to applicable requirements, the Company is allowed to net settle transactions of the same type with a single net amount payable by one party to the other. However, the Company presents its derivative assets and derivative liabilities on a gross basis in other current assets and accrued and other current liabilities, respectively, on the consolidated balance sheets as of March 31, 2024 and 2023. See Note 9 for the fair values of the Company’s derivative instruments as of March 31, 2024 and 2023.

Cash Flow Hedges

The Company enters into cash flow hedge contracts to protect against exchange rate exposure of forecasted inventory purchases. These hedging contracts mature within approximately four months. Gains and losses in the fair value of the effective portion of the hedges are deferred as a component of accumulated other comprehensive loss until the hedged inventory purchases are sold, at which time the gains or losses are reclassified to cost of goods sold. Cash flows from such hedges are classified as operating activities in the consolidated statements of cash flows. Hedging relationships are discontinued when the hedging contract is no longer eligible for hedge accounting, or is sold, terminated or exercised, or when the Company removes hedge designation for the contract. Gains and losses in the fair value of the effective portion of the discontinued hedges continue to be reported in accumulated other comprehensive loss until the hedged inventory purchases are sold, unless it is probable that the forecasted inventory purchases will not occur by the end of the originally specified time period or within an additional two-month period of time thereafter.

The notional amounts of foreign currency exchange forward contracts outstanding related to forecasted inventory purchases were $90.5 million and $72.6 million as of March 31, 2024 and 2023, respectively. The

Company had $1.1 million of net gain related to its cash flow hedges included in accumulated other comprehensive loss as of March 31, 2024, which will be reclassified into earnings within the next twelve months.

The following table presents the amounts of gain (loss) on the Company's derivative instruments designated as hedging instruments for fiscal years 2024, 2023 and 2022 and their locations on its consolidated statements of operations and consolidated statements of comprehensive income (in thousands):


	Amount of Gain (Loss) Deferred as a Component of Accumulated Other Comprehensive Loss						Amount of Loss (Gain) Reclassified from Accumulated Other Comprehensive Loss to Costs of Goods Sold
	2024		2023		2022		2024		2023		2022

Cash flow hedges	$	1,109	$	2,625	$	6,308	$	3,964	$	(8,391)	$	(8,221)

The Company presents the earnings impact from forward points in the same line item that is used to present the earnings impact of the hedged item, i.e. cost of goods sold, for hedging forecasted inventory purchases and such amount is not material for all periods presented.

Other Derivatives

The Company also enters into foreign currency exchange forward and swap contracts to reduce the short-term effects of currency exchange rate fluctuations on certain receivables or payables denominated in currencies other than the functional currencies of its subsidiaries. These contracts generally mature within approximately one month. The primary risk managed by using forward and swap contracts is the currency exchange rate risk. The gains or losses on these contracts are not material and included in other income (expense), net in the consolidated statements of operations based on the changes in fair value. The notional amounts of these contracts outstanding as of March 31, 2024 and 2023 were $79.4 million and $111.2 million, respectively. Foreign currency exchange forward and swap contracts outstanding as of March 31, 2024 primarily consisted of contracts in New Taiwan Dollar, Canadian Dollar, and Brazilian Real to be settled at future dates at predetermined exchange rates.

The fair value of all foreign currency exchange forward and swap contracts is determined based on observable market transactions of spot currency rates and forward rates. Cash flows from these contracts are classified as operating activities in the consolidated statements of cash flows.

Goodwill and Other Intangible Assets

12 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

The Company conducts its impairment analysis of goodwill annually at December 31 or more frequently if changes in facts and circumstances indicate that it is more likely than not that the fair value of the Company’s reporting unit may be less than its carrying amount. The Company conducted its annual impairment analysis of goodwill as of December 31, 2023 by performing a qualitative assessment and concluded that it was more likely than not that the fair value of its reporting unit exceeded its carrying amount. In assessing the qualitative factors, the Company considered the impact of change in industry and competitive environment, the Company's market capitalization and budgeted-to-actual revenue performance for the twelve months ended December 31, 2023. There have been no triggering events identified affecting the valuation of goodwill subsequent to the annual impairment test.

The following table summarizes the activities in the Company's goodwill balance (in thousands):


	Years Ended March 31,
	2024		2023
Beginning of the period	$	454,610	$	448,175
Acquisitions	8,156		7,976
Effects of foreign currency translation	(788)		(1,541)
End of the period	$	461,978	$	454,610

The Company's acquired intangible assets were as follows (in thousands):


	March 31,
	2024						2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and trade names	$	32,390	$	(25,739)	$	6,651	$	36,790	$	(26,774)	$	10,016
Developed technology	107,421		(86,855)		20,566		121,730		(94,792)		26,938
Customer contracts/relationships	69,087		(51,061)		18,026		71,110		(47,688)		23,422
In-process R&D	—		—		—		3,526		—		3,526
Effects of foreign currency translation	(1,019)		379		(640)		(1,021)		292		(729)
Total	$	207,879	$	(163,276)	$	44,603	$	232,135	$	(168,962)	$	63,173

For fiscal years 2024, 2023 and 2022, amortization expense for intangible assets was $21.7 million, $24.4 million and $30.2 million, respectively. The Company expects that annual amortization expense for fiscal years 2025, 2026, 2027, 2028 and 2029 will be $19.8 million, $12.9 million, $5.7 million, $4.1 million and $1.8 million, respectively, and $0.3 million thereafter.

Financing Arrangements	12 Months Ended
Financing Arrangements	Mar. 31, 2024
Debt Disclosure [Abstract]
Financing Arrangements	Financing Arrangements The Company had several uncommitted, unsecured bank lines of credit and letters of credit aggregating $172.5 million and $181.3 million as of March 31, 2024 and 2023, respectively. There are no financial covenants under the lines of credit with which the Company must comply. There was no borrowing outstanding under the lines of credit as of March 31, 2024 and 2023. As of March 31, 2024 and 2023, the Company had outstanding bank guarantees of $14.3 million and $13.6 million, respectively.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
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-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//470/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
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-Paragraph 1B
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-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 1C
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

Commitments and Contingencies

12 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Product Warranties

Changes in the Company's warranty liabilities for fiscal years 2024 and 2023 were as follows (in thousands):


	Years Ended March 31,
	2024		2023
Beginning of the period	$	40,886	$	46,219
Provision	45,413		31,089
Settlements	(41,413)		(35,919)
Effects of foreign currency translation	(232)		(503)
End of the period	$	44,654	$	40,886

Indemnifications

The Company indemnifies certain of its suppliers and customers for losses arising from matters such as intellectual property disputes and product safety defects, subject to certain restrictions. The scope of these indemnities varies, but in some instances includes indemnification for damages and expenses, including reasonable attorneys' fees. As of March 31, 2024, no material amounts have been accrued for these indemnification provisions. The Company does not believe, based on historical experience and information currently available, that it is probable that any material amounts will be required to be paid under its indemnification arrangements.

The Company also indemnifies its current and former directors and certain of its current and former officers. Certain costs incurred for providing such indemnification may be recoverable under various insurance policies. The Company is unable to reasonably estimate the maximum amount that could be payable under these arrangements because these exposures are not limited, the obligations are conditional in nature and the facts and circumstances involved in any situation that might arise are variable.

Legal Proceedings

From time to time the Company is involved in claims and legal proceedings that arise in the ordinary course of its business. The Company is currently subject to several such claims and legal proceedings. The Company intends to vigorously defend against them. Management periodically assesses the Company’s liabilities and contingencies in connection with these matters based upon the latest information available. The Company follows ASC ("Accounting Standards Codification") 450, Contingencies, in determining the accounting and disclosure for these contingencies. Based on currently available information, the Company does not believe that resolution of pending matters will have a material adverse effect on its financial condition, cash flows and results of operations. However, litigation is subject to inherent uncertainties, and there can be no assurances that the Company's defenses will be successful or that any such lawsuit or claim would not have a material adverse impact on the Company's business, financial condition, cash flows and results of operations in a particular period. Any claims or proceedings against the Company can have an adverse impact because of defense costs, diversion of management and operational resources, negative publicity and other factors. Any failure to obtain a necessary license or other rights, or litigation arising out of intellectual property claims, could adversely affect the Company's business.

Shareholders' Equity

12 Months Ended

Mar. 31, 2024

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Share Capital

The Company's nominal share capital is CHF 43.3 million, consisting of 173,106,620 issued shares with a par value of CHF 0.25 each, of which 19,243,358 were held in treasury shares as of March 31, 2024.

The Company has reserved conditional capital of 25,000,000 shares for potential issuance on the exercise of rights granted under the Company's employee equity incentive plans and additional conditional capital for financing purposes, representing the issuance of up to 25,000,000 shares to cover any conversion rights under a future convertible bond issuance. At the 2020 Annual General Meeting, the shareholders of the Company authorized the Board of Directors to issue up to an additional 17,310,662 shares of the Company until September 9, 2022, which was authorized at the 2022 Annual General Meeting to be extended to September 14, 2024.

Dividends

Pursuant to Swiss corporate law, the payment of dividends is limited to certain amounts of unappropriated retained earnings (approximately CHF 1.0 billion, or USD equivalent of $1.1 billion as of March 31, 2024) and is subject to shareholder approval.

In May 2024, the Board of Directors recommended that the Company pay cash dividends for fiscal year 2024 of CHF 1.16 per share (USD equivalent of approximately $1.28 per share, which would result in a gross aggregate dividend of approximately $197.2 million, based on the exchange rate and shares outstanding, net of treasury shares, on March 31, 2024).

In September 2023, the Company paid gross cash dividends of CHF 1.06 (USD equivalent of $1.16) per common share, totaling $182.3 million on the Company's outstanding common shares. In September 2022, the Company paid cash dividends of CHF 0.96 (USD equivalent of $0.98) per common share, totaling $158.7 million on the Company’s outstanding common shares. In September 2021, the Company paid cash dividends of CHF 0.87 (USD equivalent of $0.95) per common share, totaling $159.4 million on the Company's outstanding common shares.

Any future dividends will be subject to the approval of the Company's shareholders.

Legal Reserves

Under Swiss corporate law, a minimum of 5% of the Company's annual net income must be retained in a legal reserve until this legal reserve equals 20% of the Company's issued and outstanding aggregate par value per share capital. These legal reserves represent an appropriation of retained earnings that are not available for distribution and totaled $10.6 million at March 31, 2024 (based on the exchange rate at March 31, 2024).

Share Repurchases

2020 Share Repurchase Program

In May 2020, the Company's Board of Directors approved the 2020 share repurchase program, which authorized the Company to use up to $250.0 million to purchase Logitech shares to support equity incentive plans

or potential acquisitions. Shares may be repurchased from time to time on the open market, through block trades or otherwise. Purchases may be started or stopped at any time without prior notice depending on market conditions and other factors. In April 2021, the Company's Board of Directors approved an increase of $750.0 million to the 2020 share repurchase program, to an aggregate amount of $1.0 billion. The Swiss Takeover Board approved this increase and it became effective on May 21, 2021. In July 2022, the Company’s Board of Directors approved an increase of $500 million to the 2020 share repurchase program, to an aggregate amount of up to $1.5 billion. The Swiss Takeover Board approved this increase and it became effective on August 19, 2022. The 2020 share repurchase program expired on July 27, 2023. The Company repurchased 16.7 million shares for an aggregate cost of $1.2 billion under the 2020 share repurchase program, of which 2.6 million shares for an aggregate cost of $159.1 million were repurchased during fiscal year 2024 prior to the expiration of the program.

2023 Share Repurchase Program

In June 2023, the Company's Board of Directors approved a new, three-year share repurchase program, which allows the Company to use up to $1.0 billion to repurchase its shares. The 2023 share repurchase program enables the Company to repurchase shares for cancellation, as well as to support equity incentive plans or potential acquisitions. The Swiss Takeover Board approved the 2023 share repurchase program in July 2023 and the program became effective on July 28, 2023. During the fiscal year ended 2024, the Company repurchased 4.5 million shares for an aggregate cost of $364.7 million under the 2023 share repurchase program, of which $19.5 million of the aggregate cost was not paid yet as of March 31, 2024. 4.1 million shares for an aggregate cost of $332.1 million were repurchased for cancellation and the remaining shares were repurchased to support equity incentive plans. As of March 31, 2024, $635.8 million was available for repurchase under the 2023 share repurchase program.

Swiss law limits a company’s ability to hold or repurchase its own shares. The aggregate par value of all shares held in treasury by the Company and its subsidiaries may not exceed 10% of the share capital of the Company, which for the Company corresponds to approximately 17.3 million registered shares. This limitation does not apply to shares repurchased for cancellation, due to the Board of Directors’ authority under the Company’s capital band set forth in the Company’s Articles of Incorporation to cancel shares up to a limit of 10% of the Company's current share capital. As of March 31, 2024, the Company had a total of 19.2 million shares held in treasury stock, which includes 4.1 million shares that have been repurchased for cancellation.

To the extent that the shares are repurchased to support equity incentive plans or potential acquisitions, the shares are repurchased on the ordinary trading line of SIX Swiss Exchange (“SIX”) and/or The Nasdaq Global Select Market (“Nasdaq”). Shares repurchased for cancellation purposes are repurchased on a second trading line on SIX. Shares may be repurchased from time to time on the open market or in privately negotiated transactions, including under plans complying with the provisions of Rule 10b5-1 and Rule 10b-18 of the Securities Exchange Act of 1934, as amended. Purchases may be started or stopped at any time without prior notice depending on market conditions and other factors and the program does not require the purchase of any minimum number of shares.

Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss were as follows (in thousands):



	Currency Translation Adjustment		Defined Benefit Plans		Deferred Hedging Gains (Losses)		Total
March 31, 2023	$	(100,869)	$	4,525	$	(3,933)	$	(100,277)
Other comprehensive income (loss)	(3,078)		(12,920)		5,073		(10,925)
March 31, 2024	$	(103,947)	$	(8,395)	$	1,140	$	(111,202)

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Segment Information

12 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Segment Information

The Company operates in a single operating segment that encompasses the design, manufacturing and marketing of peripherals for gaming, PCs, tablets, video conferencing, and other digital platforms. Operating performance measures are provided directly to the Company's CEO, who is considered to be the Company’s Chief Operating Decision Maker. The CEO periodically reviews information such as sales and adjusted operating income (loss) to make business decisions. These operating performance measures do not include restructuring charges, net, share-based compensation expense, amortization and impairment of intangible assets, acquisition-related costs and change in fair value of contingent consideration from business acquisitions.

During fiscal year 2024, the Company changed its presentation of Sales by Product Category to provide a simpler and clearer view of the Company's business. The change in presentation did not have an impact on previously reported total sales. As a result of these changes, certain prior-period amounts for the fiscal years ended 2023 and 2022 have been reclassified to conform to the current period presentation. See Note 2 for further information on the change in presentation.

Sales by product category in the current presentation were as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Gaming (1)	$	1,231,063	$	1,288,313	$	1,577,195
Keyboards & Combos	821,441		836,432		967,301
Pointing Devices	742,987		728,357		781,108
Video Collaboration	609,361		677,923		667,570
Webcams	325,225		378,688		676,116
Tablet Accessories	254,060		254,374		310,123
Headsets	168,478		176,576		208,318
Other (2)	145,852		198,155		293,370
Total Sales	$	4,298,467	$	4,538,818	$	5,481,101

(1) Gaming includes streaming services revenue generated by Streamlabs.

(2) Other primarily consists of mobile speakers and PC speakers.

Sales by geographic region (based on the customers' locations) for fiscal years 2024, 2023 and 2022 were as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Americas	$	1,896,258	$	1,930,908	$	2,317,941
EMEA	1,301,515		1,299,657		1,724,027
Asia Pacific	1,100,694		1,308,253		1,439,133
Total Sales	$	4,298,467	$	4,538,818	$	5,481,101

Revenue from sales to customers in the United States represented 36%, 35% and 34% of sales in fiscal years 2024, 2023 and 2022, respectively. Revenue from sales to customers in Germany represented 14%, 14% and 15% of sales in fiscal years 2024, 2023 and 2022, respectively. Revenue from sales to customers in China represented 10%, 11% and 10% of sales in fiscal years 2024, 2023 and 2022, respectively. No other country represented more than 10% of sales during these periods presented herein. Revenue from sales to customers in Switzerland, the Company's country of domicile, represented 2% of sales for fiscal year 2024, and 3% of sales for each of fiscal years 2023 and 2022.

Property, plant and equipment, net (excluding software) and right-of-use assets by geographic region were as follows (in thousands):


	March 31,
	2024		2023
Americas	$	67,762	$	59,183
EMEA	30,819		38,890
Asia Pacific	58,901		69,939
Total	$	157,482	$	168,012

Property, plant and equipment, net (excluding software) and right-of-use assets in the United States, China, and Ireland were $66.5 million, $41.2 million, and $16.2 million, respectively, as of March 31, 2024. Property, plant and equipment, net (excluding software) and right-of-use assets in the United States, China, and Ireland were $58.7 million, $48.8 million, and $17.7 million, respectively, as of March 31, 2023. Property, plant and equipment, net (excluding software) and right-of-use assets in Switzerland, the Company's country of domicile, were $9.0 million and $13.7 million as of March 31, 2024 and 2023, respectively. No other countries represented more than 10% of the Company's total consolidated property, plant and equipment, net (excluding software) and right-of-use assets as of March 31, 2024 or 2023.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Paragraph 32
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Paragraph 42
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//280/tableOfContent

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-34

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

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+ Details

Restructuring

12 Months Ended

Mar. 31, 2024

Restructuring and Related Activities [Abstract]

Restructuring

During the second quarter of fiscal year 2023, the Company initiated a restructuring plan to realign its business group and engineering structure with its go-to-market strategy to more effectively compete within the enterprise market and to better serve end-users. During the fourth quarter of fiscal year 2023, the Company undertook further actions to remove organization layers as well as streamline its marketing organization to increase efficiency. These actions resulted in charges related to employee severance and other termination benefits as well as contract termination and other costs. These restructuring activities have been substantially completed during fiscal year 2024.

The following table summarizes restructuring-related activities during fiscal years 2024 and 2023 (in thousands):



	Termination Benefits		Contract Termination and Other		Total









Accrued restructuring liability at March 31, 2022 (1)	$	561	$	896	$	1,457
Charges, net	27,631		6,942		34,573
Cash payments	(14,015)		(2,481)		(16,496)
Accrued restructuring liability at March 31, 2023 (1)	$	14,177	$	5,357	$	19,534
Charges, net	6,011		(2,145)		3,866
Cash payments	(18,375)		(1,757)		(20,132)
Accrued restructuring liability at March 31, 2024 (1)	$	1,813	$	1,455	$	3,268

(1) The accrual balances are included in accrued and other current liabilities on the Company’s consolidated balance sheets.

Leases

12 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

The Company is a lessee in various non cancellable operating leases, primarily real estate facilities for office space. As of March 31, 2024, the Company's lease arrangements are comprised of operating leases with various expiration dates through December 31, 2033. The lease term for all of the Company’s leases includes the noncancellable period of the lease. Certain lease agreements include options to renew or terminate the lease, which are not reasonably certain to be exercised and therefore are not factored into the Company's determination of the duration of the lease arrangement. The Company's leases do not contain any material residual value guarantees.

The total operating lease costs including short-term lease costs were $19.5 million, $21.2 million and $17.3 million for the years ended March 31, 2024, 2023, and 2022, respectively. Total variable lease costs were not

material during the years ended March 31, 2024, 2023 and 2022. The total operating and variable lease costs were included in cost of goods sold, marketing and selling, research and development, and general and administrative in the Company's consolidated statements of operations.

Supplemental cash flow information related to operating leases (in thousands):


	Years Ended March 31,
	2024		2023		2022
Cash paid for amounts included in the measurement of operating lease liabilities	$	13,489	$	16,565	$	15,400
ROU assets obtained in the exchange for operating lease liabilities	$	8,593	$	43,093	$	22,174

Future lease payments included in the measurement of operating lease liabilities as of March 31, 2024 for the following five fiscal years and thereafter are as follows (in thousands):


Years Ending March 31,
2025	$	15,943
2026	13,237
2027	12,099
2028	9,396
2029	8,655
Thereafter	32,813
Total lease payments	$	92,143
Less: imputed interest	(13,235)
Less: tenant improvement allowance	(1,881)
Present value of lease liabilities	$	77,027

Weighted-average lease terms and discount rates were as follows:


	Years Ended March 31,
	2024		2023
Weighted-average remaining lease terms (in years)	7.5		8.1
Weighted-average discount rate	3.8	%	3.7	%

Schedule II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Mar. 31, 2024

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II - VALUATION AND QUALIFYING ACCOUNTS

VALUATION AND QUALIFYING ACCOUNTS

For the Fiscal Years Ended March 31, 2024, 2023 and 2022 (in thousands)

The Company's Schedule II includes valuation and qualifying accounts related to allowances for doubtful accounts, sales returns, cooperative marketing arrangements, customer incentive programs, and pricing programs, for direct customers and tax valuation allowances. The Company also has sales incentive programs for indirect customers with whom it does not have a direct sales and receivable relationship. These programs are recorded as accrued liabilities and are not considered valuation or qualifying accounts.


	Balance at Beginning of Year		Charged (Credited) to Statement of Operations (1)		Claims and Adjustments Applied Against Allowances (1)		Balance at End of Year
Allowance for doubtful accounts:
2024	$	86	$	(86)	$	—	$	—
2023	$	2,212	$	(2,019)	$	(107)	$	86
2022	$	1,161	$	1,691	$	(640)	$	2,212
Allowance for sales returns:
2024	$	10,146	$	141,995	$	(141,961)	$	10,180
2023	$	12,321	$	157,619	$	(159,794)	$	10,146
2022	$	14,438	$	162,381	$	(164,498)	$	12,321
Allowance for cooperative marketing arrangements:
2024	$	40,495	$	232,837	$	(231,698)	$	41,634
2023	$	56,372	$	262,363	$	(278,240)	$	40,495
2022	$	43,276	$	286,116	$	(273,020)	$	56,372
Allowance for customer incentive programs:
2024	$	71,645	$	299,351	$	(310,969)	$	60,027
2023	$	97,460	$	329,666	$	(355,481)	$	71,645
2022	$	76,200	$	348,072	$	(326,812)	$	97,460
Allowance for pricing programs:
2024	$	98,822	$	707,954	$	(715,496)	$	91,280
2023	$	120,797	$	784,835	$	(806,810)	$	98,822
2022	$	120,568	$	885,228	$	(884,999)	$	120,797
Tax valuation allowance:
2024	$	30,766	$	4,770	$	—	$	35,536
2023	$	29,858	$	908	$	—	$	30,766
2022	$	28,926	$	887	$	45	$	29,858

(1) The amounts for fiscal years 2024, 2023 and 2022 include immaterial impacts from the business acquisitions during the year.

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Pay vs Performance Disclosure
Net income	$ 612,143	$ 364,575	$ 644,513

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-1A

Reference 37: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-1B

Reference 38: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(20))
-Publisher FASB
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Reference 39: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(22))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

+ Details

Insider Trading Arrangements	3 Months Ended	12 Months Ended
Insider Trading Arrangements	Mar. 31, 2024 shares	Mar. 31, 2024 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Prakash Arunkundrum [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On March 7, 2024, Prakash Arunkundrum, our Chief Operating Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale of an aggregate of up to 16,000 shares of our common stock acquired by Mr. Arunkundrum under our equity plans. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The first date that sales of any shares are permitted to be sold under the trading arrangement will be July 31, 2024. The trading arrangement terminates on December 15, 2024, or upon the earlier completion of all transactions thereunder.
Name	Prakash Arunkundrum
Title	Chief Operating Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	March 7, 2024
Arrangement Duration	137 days
Aggregate Available	16,000	16,000

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Mar. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements include the accounts of Logitech and its subsidiaries. All intercompany balances and transactions have been eliminated. The consolidated financial statements are presented in accordance with accounting principles generally accepted in the United States ("U.S. GAAP").
Fiscal Year	Fiscal Year The Company's fiscal year ends on March 31. Interim quarters are generally thirteen-week periods, each ending on a Friday. For purposes of presentation, the Company has indicated its quarterly periods end on the last day of the calendar quarter.
Reference to Sales and Change in Presentation of Sales by Product Category	Reference to Sales References to "sales" in the Notes to the consolidated financial statements means net sales, except as otherwise specified. Change in Presentation of Sales by Product Category During the first quarter of fiscal year 2024, the Company changed its presentation of Sales by Product Category, included in Note 15, to provide a simpler and clearer view of the Company's business. The change in presentation did not have an impact on previously reported total sales. These changes included reclassifications of sales between certain product categories resulting in the following: •The Webcams category (previously PC Webcams) now includes PC webcams and VC webcams; •Headsets is a new category which includes PC headsets and VC headsets; •The Mobile Speakers category is no longer a separate category as sales have been reclassified into the Other category; •The Audio & Wearables category is no longer a separate category as sales have been reclassified into other categories as discussed below.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Significant estimates and assumptions made by management involve the fair value of goodwill and intangible assets acquired from business acquisitions, valuation of investment in privately held companies classified under Level 3 fair value hierarchy, pension obligations, accruals for customer incentives, cooperative marketing, and pricing programs ("Customer Programs") and related breakage when appropriate, inventory valuation, share-based compensation expense, uncertain tax positions, and valuation allowances for deferred tax assets. Although these estimates are based on management’s best knowledge of current events and actions that may impact the Company in the future, actual results could differ materially from those estimates.
Risks and Uncertainties	Risks and Uncertainties Impacts of Macroeconomic and Geopolitical Conditions on the Company's Business The Company's business has been impacted by adverse macroeconomic and geopolitical conditions. These conditions include inflation, interest rate and foreign currency fluctuations, changes in fiscal policies, slowdown of economic activity around the world, and lower consumer and enterprise spending. The global and regional economic and political conditions adversely affected demand for the Company's products. In addition, these conditions have caused and may continue to cause volatility in the cost of materials and logistics, and transportation delays, and as a result may impact the pricing of the Company's products, product availability and the Company's results of operations.
Currencies	Currencies The functional currency of the Company's operations is primarily the U.S. Dollar. Certain operations use the Euro, Chinese Renminbi, Swiss Franc, or other local currencies as their functional currencies. The financial statements of the Company's subsidiaries whose functional currency is other than the U.S. Dollar are translated to U.S. Dollars using period-end rates of exchange for assets and liabilities and monthly average rates for sales, income and expenses. Cumulative translation gains and losses are included as a component of shareholders' equity in accumulated other comprehensive income (loss). Gains and losses arising from transactions denominated in currencies other than a subsidiary's functional currency are reported in other income (expense), net in the consolidated statements of operations.
Revenue Recognition	Revenue Recognition Revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the transaction price the Company expects to receive in exchange for those goods or services. Substantially all revenue recognized by the Company relates to the contracts with customers to sell products that allow people to connect through gaming, video, computing, music and other digital platforms. These products are hardware devices, which may include embedded software that function together, and are considered as one performance obligation. Hardware devices are generally plug and play, requiring no configuration and little or no installation. Revenue is recognized at a point in time when control of the products is transferred to the customer which generally occurs upon shipment. The Company’s sales contracts with its customers have a one year or shorter term. The Company elects not disclosing the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less. The Company also provides post-contract customer support (“PCS”) for certain products and related software, which includes unspecified software updates and upgrades, bug fixes and maintenance. The transaction price is allocated to two performance obligations in such contracts, based on a relative standalone selling price. The transaction price allocated to PCS is recognized as revenue on a straight-line basis, which reflects the pattern of delivery of PCS, over the estimated term of the support. The Company also recognizes revenue from subscription services that provide professional streamers with access to streaming software and tools that represent a single stand-ready performance obligation. Subscriptions are paid for at the time of or in advance of delivering the services. The proceeds received in advance from such arrangements is recognized as deferred revenue and then recognized as revenue ratably over the subscription period. The Company normally requires payment from customers within thirty to sixty days from the invoice date. However, terms may vary by customer type, by country and by selling season. Extended payment terms are sometimes offered to a limited number of customers during the second and third fiscal quarters. The Company generally does not modify payment terms on existing receivables. The Company's contracts with customers do not include significant financing components as the period between the satisfaction of performance obligations and timing of payment are generally within one year. The transaction price received by the Company from sales to its distributors, retail companies ("retailers"), and authorized resellers is calculated as selling price net of variable consideration which may include product returns and the Company’s payments for Customer Programs related to current period product revenue. The estimated impact of these programs is recorded as a reduction of transaction price or as an operating expense if the Company receives a distinct good or service from the customer and can reasonably estimate the fair value of that good or service received. Customer Programs require management to estimate the percentage of those programs which will not be claimed in the current period or will not be earned by customers, which is commonly referred to as "breakage." Breakage is estimated based on historical claim experience, the period in which customer claims are expected to be submitted, specific terms and conditions with customers and other factors. The Company accounts for breakage as part of variable consideration, subject to constraint, and records the estimated impact in the same period when revenue is recognized at the expected value. Assessing the period in which claims are expected to be submitted and the relevance of the historical claim experience require significant management judgment to estimate the breakage of Customer Programs in any accounting period. The Company enters into cooperative marketing arrangements with many of its customers and with certain indirect partners, allowing customers to receive a credit equal to a set percentage of their purchases of the Company's products, or a fixed dollar amount for various marketing and incentive programs. The objective of these arrangements is to encourage advertising and promotional events to increase sales of the Company's products. Customer incentive programs include consumer rebates and performance-based incentives. Consumer rebates are offered to the Company's customers and indirect partners at the Company's discretion for the primary benefit of end-users. In addition, the Company offers performance-based incentives to many of its customers and indirect partners based on predetermined performance criteria. At management's discretion, the Company also offers special pricing discounts to certain customers. Special pricing discounts are usually offered only for limited time periods or for sales of selected products to specific indirect partners. Cooperative marketing arrangements and customer incentive programs are considered variable consideration, which the Company estimates and records as a reduction to revenue at the time of sale based on negotiated terms, historical experiences, forecasted incentives, anticipated volume of future purchases, and inventory levels in the channel. The Company has agreements with certain customers that contain terms allowing price protection credits to be issued in the event of a subsequent price reduction. Management's decision to make price reductions is influenced by product life cycle stage, market acceptance of products, the competitive environment, new product introductions and other factors. Accruals for estimated expected future pricing actions and Customer Programs are recognized at the time of sale based on analyses of historical pricing actions by customer and by product, inventories owned by and located at customers, current customer demand, current operating conditions, and other relevant customer and product information, such as stage of product life-cycle. Product return rights vary by customer. Estimates of expected future product returns qualify as variable consideration and are recorded as a reduction of the transaction price of the contract at the time of sale based on an analyses of historical return trends by customer and by product, inventories owned by and located at customers, current customer demand, current operating conditions, and other relevant customer and product information. The Company assesses the estimated asset for recovery value for impairment and adjusts the value of the asset for any impairment. Return trends are influenced by product life cycle status, new product introductions, market acceptance of products, sales levels, product sell-through, the type of customer, seasonality, product quality issues, competitive pressures, operational policies and procedures, and other factors. Return rates can fluctuate over time but are sufficiently predictable to allow the Company to estimate expected future product returns. Typically, variable consideration does not need to be constrained as estimates are based on predictive historical data or future commitments that are planned and controlled by the Company. However, the Company continues to assess variable consideration estimates such that it is probable that a significant reversal of revenue will not occur. The Company regularly evaluates the adequacy of its estimates for Customer Programs and product returns. Future market conditions and product transitions may require the Company to take action to change such programs and related estimates. When the variables used to estimate these costs change, or if actual costs differ significantly from the estimates, the Company would be required to increase or reduce revenue or operating expenses to reflect the impact. During the year ended March 31, 2024, changes to these estimates related to performance obligations satisfied in prior periods were not material. Sales taxes and value-added taxes (“VAT”) collected from customers, if applicable, which are remitted to governmental authorities are not included in revenue, and are reflected as a liability on the consolidated balance sheets.
Shipping and Handling Costs	Shipping and Handling Costs The Company's shipping and handling costs are included in the cost of goods sold in the consolidated statements of operations.
Contract Balances	Contract Balances The Company records accounts receivable from contracts with customers when it has an unconditional right to consideration, as accounts receivable, net on the consolidated balance sheets. The Company records contract liabilities when cash payments are received or due in advance of performance, primarily for implied support and subscriptions. Contract liabilities are included in accrued and other current liabilities and other non-current liabilities on the consolidated balance sheets.
Contract Costs	Contract Costs The Company recognizes the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that otherwise would have been recognized is one year or less. These costs are included in marketing and selling expenses in the consolidated statements of operations.
Research and Development Costs	Research and Development Costs Costs related to research, design and development of products, which consist primarily of personnel, product design and infrastructure expenses, are charged to research and development expense as they are incurred.
Advertising Costs	Advertising Costs Advertising costs are recorded as either a marketing and selling expense or a deduction from revenue as they are incurred. Advertising costs paid or reimbursed by the Company to direct or indirect customers must have an identifiable benefit and an estimable fair value in order to be classified as an operating expense. If these criteria are not met, the payment is classified as a reduction of revenue. Advertising costs recorded as marketing and selling expense are expensed as incurred.
Cash Equivalents	Cash Equivalents The Company classifies all highly liquid instruments purchased, such as bank demand deposits, short-term time deposits, and U.S. Treasury securities, with an original maturity of three months or less at the date of purchase, to be cash equivalents. Cash equivalents are carried at cost, which approximates their fair value.
Concentration of Credit Risk	Concentration of Credit Risk Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company maintains cash and cash equivalents with various creditworthy financial institutions and has a policy to limit exposure with any one financial institution, but is exposed to credit risk in the event of default by financial institutions to the extent that cash balances with individual financial institutions are in excess of amounts that are insured. The Company periodically assesses the credit risk associated with these financial institutions. The Company sells to large distributors, retailers, and e-tailers and, as a result, maintains individually significant receivable balances with such customers. The Company manages its accounts receivable credit risk through ongoing credit evaluation of its customers' financial conditions. The Company generally does not require collateral from its customers.
Allowances for Doubtful Accounts	Allowances for Doubtful Accounts Allowances for doubtful accounts are maintained for expected credit losses resulting from the Company's customers' inability to make required payments. The allowances are based on the Company's regular assessment of various factors, including the credit-worthiness and financial condition of specific customers, historical experience with bad debts and customer deductions, receivables aging, current economic conditions, reasonable and supportable forecasts of future economic conditions, and other factors that may affect the Company's ability to collect from customers.
Inventories	Inventories Inventories are stated at the lower of cost and net realizable value. Costs are computed under the standard cost method, which approximates actual costs determined on the first-in, first-out basis. The Company records write-downs of inventories which are obsolete or in excess of anticipated demand or net realizable value based on a consideration of marketability and product life cycle stage, product development plans, component cost trends, historical sales and demand forecasts which consider the assumptions about future demand and market conditions. Inventory on hand which is not expected to be sold or utilized is considered excess, and the Company recognizes the write-down in cost of goods sold at the time of such determination. The write-down is determined by the excess of cost over net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. At the time of loss recognition, new cost basis per unit and lower-cost basis for that inventory are established and subsequent changes in facts and circumstances would not result in an increase in the cost basis.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost. Additions and improvements are capitalized, and maintenance and repairs are expensed as incurred. The Company capitalizes the cost of software developed for internal use in connection with major projects. Costs incurred during the preliminary project stage and post implementation stage are expensed, whereas direct costs incurred during the application development stage are capitalized. Depreciation expense is recognized using the straight-line method. Plant and buildings are depreciated over estimated useful lives of twenty-five years, equipment over useful lives from three to five years, internal-use software over useful lives from three to seven years, tooling over useful lives from six months to one year, and leasehold improvements over the lesser of the term of the lease or ten years. When property and equipment is retired or otherwise disposed of, the cost and accumulated depreciation are relieved from the accounts and the net gain or loss is included in cost of goods sold or operating expenses, depending on the nature of the property and equipment.
Leases	Leases The Company determines if an arrangement is a lease or contains a lease at contract inception. The Company determines if a lease is an operating or finance lease and recognizes right-of-use ("ROU") assets and lease liabilities upon lease commencement. Operating lease ROU assets are included in other assets, short-term lease liabilities are included in accrued and other current liabilities, and long-term lease liabilities are included in other non-current liabilities on the Company's consolidated balance sheets. Leases with an initial term of 12 months or less are not recorded on the balance sheet. For the Company's operating leases, the Company accounts for the lease component and related non-lease component as a single lease component. Lease expense is recognized on a straight-line basis over the lease term. For operating leases, the lease liability is initially measured at the present value of the unpaid lease payments at lease commencement date. As most of the leases do not provide an implicit rate, the Company generally uses its incremental borrowing rate as the discount rate for the leases. The Company's incremental borrowing rate is the rate of interest it would have to pay on a collateralized basis to borrow an amount equal to the lease payments under similar terms. Because the Company does not generally borrow on a collateralized basis, it uses its understanding of what its collateralized credit rating would be as an input to deriving an appropriate incremental borrowing rate. The operating lease ROU assets include prepaid lease payments and exclude lease incentives.
Intangible Assets	Intangible Assets The Company's intangible assets include goodwill and intangible assets with finite lives, which primarily include acquired technology and customer contracts and related relationships. Intangible assets with finite lives are carried at cost and amortized using the straight-line method over their useful lives ranging from one to ten years.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets The Company reviews long-lived assets, such as property and equipment, and finite-lived intangible assets, for impairment whenever events indicate that the carrying amounts might not be recoverable. Recoverability of long-lived assets is measured by comparing the projected undiscounted net cash flows associated with those assets to their carrying values. If an asset is considered impaired, it is written down to its fair value, which is determined based on the asset's projected discounted cash flows or appraised value, depending on the nature of the asset. For purposes of recognition of impairment for assets held for use, the Company groups assets and liabilities at the lowest level for which cash flows are separately identifiable.
Impairment of Goodwill	Impairment of Goodwill Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in each business combination. The Company conducts a goodwill impairment analysis annually at December 31 or more frequently if indicators of impairment exist or if a decision is made to sell or exit a business. Significant judgments are involved in determining if an indicator of impairment has occurred. Such indicators may include deterioration in general economic conditions, negative developments in equity and credit markets, adverse changes in the markets in which an entity operates, increases in input costs that have a negative effect on earnings and cash flows, or a trend of negative or declining cash flows over multiple periods, among others. The fair value that could be realized in an actual transaction may differ from that used to evaluate the impairment of goodwill. In reviewing goodwill for impairment, the Company has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (greater than 50%) that the estimated fair value of a reporting unit is less than its carrying amount. The Company also may elect not to perform the qualitative assessment and, instead, proceed directly to the quantitative impairment test. The ultimate outcome of the goodwill impairment review for a reporting unit should be the same whether the Company chooses to perform the qualitative assessment or proceeds directly to the quantitative impairment test. The Company operates as one reporting unit. For the year ended March 31, 2024, the Company elected to perform a qualitative assessment and concluded that it was more likely than not that the fair value of its reporting unit exceeds its carrying amount.
Income Taxes	Income Taxes The Company provides for income taxes using the asset and liability method, which requires that deferred tax assets and liabilities be recognized for the expected future tax consequences of temporary differences resulting from differing treatment of items for tax and financial reporting purposes, and for operating losses and tax credit carryforwards. In estimating future tax consequences, expected future events are taken into consideration, with the exception of potential tax law or tax rate changes. The Company records a valuation allowance to reduce deferred tax assets to amounts management believes are more likely than not to be realized. The Company's assessment of uncertain tax positions requires that management makes estimates and judgments about the application of tax law, the expected resolution of uncertain tax positions and other matters. In the event that uncertain tax positions are resolved for amounts different than the Company's estimates, or the related statutes of limitations expire without the assessment of additional income taxes, the Company will be required to adjust the amounts of the related assets and liabilities in the period in which such events occur. Such adjustments may have a material impact on the Company's income tax provision and its results of operations.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The carrying value of certain of the Company's financial instruments, including cash equivalents, accounts receivable and accounts payable approximates their fair value due to their short maturities. The Company's investment securities portfolio consists of bank demand deposits, short-term time deposits, and U.S. Treasury securities with an original maturity of three months or less and marketable securities (money market and mutual funds) related to a deferred compensation plan. The Company's investments related to the deferred compensation plan are reported at fair value based on quoted market prices. The marketable securities related to the deferred compensation plan are classified as non-current investments, as they are intended to fund the deferred compensation plan's long-term liability. Participants in the deferred compensation plan may select the mutual funds in which their compensation deferrals are invested within the confines of the Rabbi Trust which holds the marketable securities. These securities are recorded at fair value based on quoted market prices. Earnings, gains and losses on deferred compensation investments are included in other income (expense), net in the consolidated statements of operations. The Company also holds certain non-marketable investments that are accounted for as equity method investments and included in other assets in the consolidated balance sheets. In addition, the Company has certain equity investments without readily determinable fair values due to the absence of quoted market prices, the inherent lack of liquidity, and the fact that inputs used to measure fair value are unobservable and require management's judgment. The Company elected the measurement alternative to record these investments at cost and to adjust for impairments and observable price changes resulting from transactions with the same issuer within the statements of operations.
Net Income per Share	Net Income per Share Basic net income per share is computed by dividing net income by the weighted average outstanding shares. Diluted net income per share is computed using the weighted average outstanding shares and dilutive share equivalents. Dilutive share equivalents consist of share-based awards, including stock options, purchase rights under employee share purchase plan, and restricted stock units. The dilutive effect of in-the-money share-based compensation awards is calculated based on the average share price for each fiscal period using the treasury stock method.
Share-Based Compensation Expense	Share-Based Compensation Expense Share-based compensation expense includes compensation expense for share-based awards granted based on the grant date fair value. The grant date fair value for stock options and stock purchase rights is estimated using the Black-Scholes-Merton option-pricing valuation model. The grant date fair value of service-based restricted stock units ("RSUs") is calculated based on the market price on the date of grant, reduced by estimated dividend yield prior to vesting. The grant date fair value of restricted stock units which vest upon meeting certain market- and performance-based conditions ("PSUs") is estimated using the Monte-Carlo simulation method including the effect of the market condition. Stock-based compensation expense is recognized ratably over the respective requisite service periods of the awards and forfeitures are accounted for when they occur. For PSUs, the Company recognizes compensation expense using its estimate of probable outcome at the end of the performance period (i.e., the estimated performance against the performance targets). The Company periodically adjusts the cumulative stock-based compensation expense recorded when the probable outcome for the PSUs is updated based upon changes in actual and forecasted financial results.
Product Warranty	Product Warranty All of the Company's products are covered by standard warranty to be free from defects in material and workmanship for periods ranging from one year to three years. The warranty period varies by product and by region. The Company’s standard warranty does not provide a service beyond assuring that the product complies with agreed-upon specifications and is not sold separately. The standard warranty the Company provides qualifies as an assurance warranty and is not treated as a separate performance obligation. The Company estimates cost of product warranties at the time the related revenue is recognized based on historical warranty claim rates, historical costs, and knowledge of specific product failures that are outside of the Company's typical experience. The Company accrues a warranty liability for estimated costs to provide products, parts or services to repair or replace products in satisfaction of the warranty obligation. Each quarter, the Company reevaluates estimates to assess the adequacy of recorded warranty liabilities. When the Company experiences changes in warranty claim activity or costs associated with fulfilling those claims, the warranty liability is adjusted accordingly.
Comprehensive Income (Loss)	Comprehensive Income (Loss) Comprehensive income (loss) is defined as the total change in shareholders' equity during the period other than from transactions with shareholders. Comprehensive income (loss) consists of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) is comprised of currency translation adjustments from those entities not using the U.S. Dollar as their functional currency, net deferred gains and losses and prior service costs and credits for defined benefit pension plans, and net deferred gains and losses on hedging activity.
Treasury Shares	Treasury Shares The Company periodically repurchases shares in the market at fair value. Shares repurchased are recorded at cost as a reduction of total shareholders' equity. Treasury shares held may be reissued to satisfy the exercise of employee stock options and purchase rights, the vesting of restricted stock units, and acquisitions, or may be canceled with shareholder approval. Treasury shares that are reissued are accounted for using the first-in, first-out basis.
Derivative Financial Instruments	Derivative Financial Instruments The Company enters into foreign exchange forward contracts to reduce the short-term effects of currency fluctuations on certain foreign currency receivables or payables and to hedge against exposure to changes in currency exchange rates related to its subsidiaries' forecasted inventory purchases. Gains or losses from changes in the fair value of forward contracts that offset transaction losses or gains on foreign currency receivables or payables are recognized immediately and included in other income (expense), net in the consolidated statements of operations. Gains and losses for changes in the fair value of the effective portion of the Company's forward contracts related to forecasted inventory purchases are deferred as a component of accumulated other comprehensive loss until the hedged inventory purchases are sold, at which time the gains or losses are reclassified to cost of goods sold. The Company presents the earnings impact from forward points in the same line item that is used to present the earnings impact of the hedged item (i.e. cost of goods sold) for hedging forecasted inventory purchases.
Restructuring Charges	Restructuring Charges The Company's restructuring charges consist of employee severance, one-time termination benefits and ongoing benefits related to the reduction of its workforce, and other costs. Liabilities for costs associated with a restructuring activity are measured at fair value and are recognized when the liability is incurred, as opposed to when management commits to a restructuring plan. One-time termination benefits are expensed at the date the entity notifies the employee, unless the employee must provide future service, in which case the benefits are expensed ratably over the future service period. Ongoing benefits are expensed when restructuring activities are probable and the benefit amounts are estimable. Other costs primarily consist of legal, consulting, and other costs related to employee terminations, and are expensed when incurred. Termination benefits are calculated based on regional benefit practices and local statutory requirements.
New Accounting Pronouncements Not Yet Adopted	New Accounting Pronouncements Not Yet Adopted In November 2023, the Financial Accounting Standard Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. ASU 2023-07 improves reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses that are regularly provided to the chief operating decision maker. In addition, ASU 2023-07 requires that all existing annual disclosures about segment profit or loss must be provided on an interim basis and clarifies that single reportable segment entities are subject to the disclosure requirement under Topic 280 in its entirety. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023 and interim periods within those fiscal years beginning after December 15, 2024. A public entity should apply ASU 2023-07 retrospectively to all prior periods presented in the financial statements. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2023-07 on its consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. ASU 2023-09 requires additional disclosures related to rate reconciliation, income taxes paid, and other disclosures. Under ASU 2023-09, for each annual period presented, public entities are required to (1) disclose specific categories in the tabular rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold. In addition, ASU 2023-09 requires all reporting entities to disclose on an annual basis the amount of income taxes paid disaggregated by federal, state, and foreign taxes as well as the amount of income taxes paid by individual jurisdiction. ASU 2023-09 is effective for public business entities for annual periods beginning after December 15, 2024 and can be applied on a prospective basis with an option to apply the standard retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2023-09 on its consolidated financial statements and related disclosures.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Schedule of Reclassification Adjustments

As a result of these changes, certain prior-period amounts for the fiscal years ending March 31, 2023 and 2022 have been reclassified to conform to the current period presentation as follows (in thousands):


	Year ended March 31, 2023
	As previously reported		Reclassifications			As adjusted
Gaming	$	1,211,485	$	76,828	(1)	$	1,288,313
Keyboards & Combos	836,432		—			836,432
Pointing Devices	728,357		—			728,357
Video Collaboration	887,517		(209,594)		(2) (3)	677,923
Webcams (3)	227,692		150,996		(3)	378,688
Tablet Accessories	254,374		—			254,374
Headsets	—		176,576		(2)	176,576
Other	7,081		191,074		(4) (5)	198,155
Mobile Speakers	111,649		(111,649)		(4)	—
Audio & Wearables	274,231		(274,231)		(1) (2) (5)	—
Total Sales	$	4,538,818	$	—		$	4,538,818


	Year ended March 31, 2022
	As previously reported		Reclassifications			As adjusted
Gaming	$	1,451,883	$	125,312	(1)	$	1,577,195
Keyboards & Combos	967,301		—			967,301
Pointing Devices	781,108		—			781,108
Video Collaboration	997,164		(329,594)		(2) (3)	667,570
Webcams (3)	403,651		272,465		(3)	676,116
Tablet Accessories	310,123		—			310,123
Headsets	—		208,318		(2)	208,318
Other	18,665		274,705		(4) (5)	293,370
Mobile Speakers	149,782		(149,782)		(4)	—
Audio & Wearables	401,424		(401,424)		(1) (2) (5)	—
Total Sales	$	5,481,101	$	—		$	5,481,101

(1) Reclassification of Blue Microphones from "Audio & Wearables" to the Gaming category.

(2) Reclassification of VC headsets and PC headsets to the new Headsets category from "Video Collaboration" and "Audio & Wearables," respectively.

(3) The Webcams category includes amounts previously reported as "PC Webcams" as well as amounts from VC webcams reclassified from "Video Collaboration."

(4) Reclassification of all amounts previously reported in "Mobile Speakers" to the Other category.

(5) Reclassification of PC speakers previously reported in "Audio & Wearables" to the Other category.

Schedules of Concentration of Risk

The Company had the following customers that individually comprised 10% or more of its gross sales:


	Years Ended March 31,
	2024		2023		2022
Customer A	13	%	13	%	15	%
Customer B	18	%	19	%	17	%
Customer C	14	%	15	%	14	%

The Company had the following customers that individually comprised 10% or more of its accounts receivable:


	March 31,
	2024		2023
Customer A	14	%	12	%
Customer B	20	%	21	%
Customer C	15	%	15	%

Net Income Per Share (Tables)

12 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Computations of Basic and Diluted Net Income Per Share

The following table summarizes the computations of basic and diluted net income per share for fiscal years 2024, 2023 and 2022 (in thousands except per share amounts):


	Years Ended March 31,
	2024		2023		2022
Net income	$	612,143	$	364,575	$	644,513



Shares used in net income per share computation:
Weighted average shares outstanding - basic	156,776		162,302		167,447
Effect of potentially dilutive equivalent shares	1,395		1,402		2,967
Weighted average shares outstanding - diluted	158,171		163,704		170,414

Net income per share:
Basic	$	3.90	$	2.25	$	3.85
Diluted	$	3.87	$	2.23	$	3.78

Employee Stock-Based Compensation (Tables)

12 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Compensation Expense and Related Tax Benefit Recognized

The following table summarizes share-based compensation expense and total income tax benefit recognized for fiscal years 2024, 2023 and 2022 (in thousands):


	Years Ended March 31,
	2024		2023		2022
Cost of goods sold	$	8,004	$	5,635	$	6,695
Marketing and selling	35,780		34,707		37,796
Research and development	17,836		15,292		18,356
General and administrative	21,269		15,148		30,632
Total share-based compensation expense	82,889		70,782		93,479

Income tax benefit	(15,305)		(9,750)		(26,987)
Total share-based compensation expense, net of income tax benefit	$	67,584	$	61,032	$	66,492

Schedule of Assumptions Applied for the Fair Value of Market-Based RSUs Using the Monte-Carlo Simulation Method

The grant date fair value of the stock options and ESPP using the Black-Scholes-Merton option-pricing valuation model and the grant date fair value of the PSUs using the Monte-Carlo simulation method are determined with the following assumptions:


	Stock Options(1)			Employee Stock Purchase Plans
	Year Ended March 31,			Years Ended March 31,
	2022				2024			2023			2022
Expected dividend rate	1.18		%		1.61		%	1.78		%	1.03		%
Risk-free interest rate	1.99		%		5.36		%	3.86		%	0.27		%
Expected volatility	34		%		33		%	46		%	35		%
Expected term (years)	6.2				0.5			0.5			0.5
Weighted average grant date fair value per share	$	25.88			$	19.02		$	16.32		$	23.55

(1) No stock options were granted for fiscal years 2024 and 2023.


PSUs	Years Ended March 31,
	2024		2023		2022
Expected dividend rate	1.90	%	1.46	%	0.78	%
Risk-free interest rate	3.83	%	2.78	%	0.31	%
Expected volatility	41	%	39	%	37	%
Expected term (years)	3.0		3.0		3.0

Schedule of Stock Option Activity

A summary of the Company's stock option activities under all stock plans for fiscal years 2024, 2023 and 2022 is as follows:


	Number of Shares	Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value
	(In thousands)			(Years)	(In thousands)
Outstanding, March 31, 2021	622
Granted	842
Exercised	(71)				$	5,573

Outstanding, March 31, 2022	1,393

Exercised	(155)				$	6,482
Forfeited	(118)
Outstanding, March 31, 2023	1,120	$	66	7.6	$	7,491
Exercised	(181)	$	43		$	6,160
Forfeited	(176)	$	80
Outstanding, March 31, 2024	763	$	68	7.0	$	16,243
Vested and exercisable, March 31, 2024	489	$	61	6.5	$	13,960

Schedule of Time, Market and Performance-Based RSU Activity

A summary of the Company's RSU and PSU activities for fiscal years 2024, 2023 and 2022 is as follows:


	Number of Shares	Weighted-Average Grant Date Fair Value		Aggregate Fair Value
	(In thousands)			(In thousands)
Outstanding, March 31, 2021	3,643	$	45
Granted—RSUs	868	$	103
Granted—PSUs	203	$	124
Vested	(1,463)			$	133,977
Forfeited	(205)
Outstanding, March 31, 2022	3,046	$	68
Granted—RSUs	1,584	$	53
Granted—PSUs	407	$	69
Vested	(1,143)			$	85,152
Forfeited	(438)
Outstanding, March 31, 2023	3,456	$	66
Granted—RSUs	1,396	$	59
Granted—PSUs	457	$	67
Vested	(1,200)	$	58	$	92,340
Forfeited	(631)	$	73
Outstanding, March 31, 2024	3,478	$	65

Employee Benefit Plans (Tables)

12 Months Ended

Mar. 31, 2024

Schedule of Net Periodic Benefit Costs

The net periodic benefit cost of the defined benefit pension plans and the non-retirement post-employment benefit obligations for fiscal years 2024, 2023 and 2022 was as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Service costs	$	11,479	$	13,195	$	14,693
Interest costs	3,844		2,408		920
Expected return on plan assets	(6,950)		(3,754)		(2,930)
Amortization:

Net prior service credit recognized	(500)		(458)		(465)
Net actuarial gain recognized	(179)		(3,047)		(2,158)
Curtailment gain	—		(4,225)		—
Settlement loss (gain)	922		(339)		—
Total net periodic benefit cost	$	8,616	$	3,780	$	10,060

Schedule of Changes in Projected Benefit Obligations

The changes in projected benefit obligations for fiscal years 2024 and 2023 were as follows (in thousands):


	Years Ended March 31,
	2024		2023
Projected benefit obligations, beginning of the year	$	195,336	$	207,551
Service costs	11,479		13,195
Interest costs	3,844		2,408
Plan participant contributions	6,731		6,870
Actuarial loss (gain)	13,737		(22,965)
Benefits paid	(2,405)		(2,646)
Transfer of prior vested benefits	6,775		11,579
Plan amendments	380		—
Settlement	(22,522)		(15,348)
Curtailment	—		(3,923)
Administrative expense paid	(158)		(147)
Currency exchange rate changes	280		(1,238)
Projected benefit obligations, end of the year	$	213,477	$	195,336

Schedule of Changes in the Fair Value of Defined Benefit Pension Plan Assets

The changes in the fair value of plan assets for fiscal years 2024 and 2023 were as follows (in thousands):


	Years Ended March 31,
	2024		2023
Fair value of plan assets, beginning of the year	$	162,599	$	156,118
Actual return on plan assets	7,558		(6,008)
Employer contributions	10,888		11,645
Plan participant contributions	6,731		6,870
Benefits paid	(2,405)		(2,646)
Transfer of prior vested benefits	6,775		11,579
Settlement	(22,522)		(15,348)
Administrative expenses paid	(158)		(147)
Currency exchange rate changes	1,174		536
Fair value of plan assets, end of the year	$	170,640	$	162,599

Schedule of Fair Value of the Defined Benefit Pension Plan Assets by Major Categories and by Levels within the Fair Value Hierarchy

The following tables present the fair value of the defined benefit pension plan assets by major categories and by levels within the fair value hierarchy as of March 31, 2024 and 2023 (in thousands):


	March 31,
	2024				2023
	Level 1		Level 2		Total		Level 1		Level 2		Total
Cash and cash equivalents	$	14,375	$	—	$	14,375	$	7,071	$	—	$	7,071
Equity securities	54,534		—		54,534		51,963		—		51,963
Debt securities	42,153		—		42,153		43,493		—		43,493
Real estate funds	32,286		10,141		42,427		21,197		23,710		44,907
Hedge funds	—		10,400		10,400		606		7,907		8,513

Other	6,335		416		6,751		6,248		404		6,652
Total fair value of plan assets	$	149,683	$	20,957	$	170,640	$	130,578	$	32,021	$	162,599

Schedule of Net Funded Status

The funded status of the plans was as follows (in thousands):


	Years Ended March 31,
	2024		2023
Fair value of plan assets	$	170,640	$	162,599
Less: projected benefit obligations	213,477		195,336
Underfunded status	$	(42,837)	$	(32,737)

Schedule of Amounts Recognized on the Balance Sheet for the Plans

Amounts recognized on the balance sheets for the plans were as follows (in thousands):


	March 31,
	2024		2023
Current liabilities	$	1,391	$	1,407
Non-current liabilities	41,446		31,330
Total liabilities	$	42,837	$	32,737

Schedule of Amounts Recognized in Accumulated Other Comprehensive Loss

Amounts recognized in accumulated other comprehensive income (loss) related to defined benefit pension plans were as follows (in thousands):


	March 31,
	2024		2023
Net prior service credits	$	1,385	$	2,201
Net actuarial gain (loss)	(6,445)		5,690
Accumulated other comprehensive income (loss)	(5,060)		7,891
Deferred taxes	(3,335)		(3,366)
Accumulated other comprehensive income (loss), net of tax	$	(8,395)	$	4,525

Schedule of Actuarial Assumptions for the Pension Plans

The actuarial assumptions for the defined benefit plans were as follows:


	Years Ended March 31,
	2024	2023
Benefit Obligations:
Discount rate	1.50%- 7.00%	1.00% - 7.25%
Estimated rate of compensation increase	2.25% - 10.00%	2.25% - 10.00%
Cash balance interest credit rate	0.50% - 1.75%	0.00% - 1.75%


	Years Ended March 31,
	2024	2023	2022
Net Periodic Costs:
Discount rate	1.50% - 7.25%	0.50% - 6.75%	0.25% - 6.00%
Estimated rate of compensation increase	2.25% - 10.00%	2.00% - 10.00%	2.00% - 10.00%
Expected average rate of return on plan assets	0.50% - 4.50%	1.00% - 2.50%	1.00% - 2.25%
Cash balance interest credit rate	0.50% - 1.75%	0.00% - 1.75%	0.00% - 1.75%

Schedule of Expected Benefit Payments

The following table reflects the benefit payments that the Company expects the plans to pay in the periods noted (in thousands):


Years Ending March 31,
2025	$	13,068
2026	12,113
2027	14,465
2028	13,055
2029	12,959
Next five fiscal years	68,520
Total expected benefit payments by the plan	$	134,180

Other Income (Expense), Net (Tables)

12 Months Ended

Mar. 31, 2024

Other Income and Expenses [Abstract]

Schedule of Other Income (Expense), Net

Other income (expense), net comprises of the following (in thousands):


	Years Ended March 31,
	2024		2023		2022
Investment gain (loss) related to the deferred compensation plan	$	4,320	$	(1,961)	$	1,231
Currency exchange loss, net	(8,770)		(7,337)		(4,604)
Loss on investments, net (1)	(14,674)		(14,073)		(1,683)
Non-service cost net pension income and other (2)	2,748		10,093		5,616
Other income (expense), net	$	(16,376)	$	(13,278)	$	560

(1) Includes realized gain (loss) on sales of investments, unrealized gain (loss) from the change in fair value of investments, gain (loss) on equity-method investments, and impairment of investments during the periods presented, as applicable (see Note 9).

(2) Includes the components of net periodic benefit cost of defined benefit plans other than the service cost component (see Note 5).

Income Taxes (Tables)

12 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Schedule of Income Before Income Taxes

Income from continuing operations before income taxes for fiscal years 2024, 2023 and 2022 is summarized as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Swiss	$	502,291	$	282,970	$	579,258
Non-Swiss	119,305		180,552		196,560
Income before taxes	$	621,596	$	463,522	$	775,818

Schedule of Provision (Benefit) for Income Taxes

The provision for (benefit from) income taxes is summarized as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Current:
Swiss	$	26,833	$	19,405	$	59,659
Non-Swiss	25,044		48,829		44,094
Deferred:

Swiss	(47,517)		26,629		29,198
Non-Swiss	5,093		4,085		(1,646)
Provision for income taxes	$	9,453	$	98,947	$	131,305

Schedule of Difference Between the Provision (Benefit) for Income Taxes and Expected Tax Provision (Benefit) at the Statutory Income Tax Rate

The difference between the provision for (benefit from) income taxes and the expected tax provision (tax benefit) at the Swiss statutory income tax rate of 8.5% is reconciled below (in thousands):


	Years Ended March 31,
	2024		2023		2022
Expected tax provision at statutory income tax rates	$	52,836	$	39,399	$	65,945
Income taxes at different rates	47,595		38,467		61,296
Research and development tax credits	(9,738)		(152)		(5,957)
Swiss Tax Ruling	(50,051)		—		—
Executive compensation	407		749		4,683
Stock-based compensation	4,019		5,736		(9,141)
Deferred tax effects from TRAF	(33,926)		—		—
Valuation allowance	4,780		908		887
Impairment	—		1,881		—
Restructuring charges / (credits)	—		(1,764)		—
Unrecognized tax benefits	11,535		13,284		16,577
Audit settlement	—		—		(3,655)
FDII deduction	(18,675)		—		—
Other, net	671		439		670
Provision for income taxes	$	9,453	$	98,947	$	131,305

Schedule of Deferred Income Tax Assets and Liabilities

Deferred income tax assets and liabilities consist of the following (in thousands):


	March 31,
	2024		2023
Deferred tax assets:
Tax attributes carryforward	$	43,846	$	36,700
Future tax deduction from Swiss Tax Ruling	49,755		—
Accruals	77,181		85,786
Depreciation and amortization	121		707
Tax step-up of goodwill from TRAF	105,942		100,514
Share-based compensation	13,718		11,093
Gross deferred tax assets	290,563		234,800
Valuation allowance	(35,536)		(30,766)
Deferred tax assets after valuation allowance	255,027		204,034
Deferred tax liabilities:
Acquired intangible assets and other	(30,901)		(34,848)
Deferred tax liabilities	(30,901)		(34,848)
Deferred tax assets, net	$	224,126	$	169,186

Schedule of Aggregate Changes in Gross Unrecognized Tax Benefits

The aggregate changes in gross unrecognized tax benefits in fiscal years 2024, 2023 and 2022 were as follows (in thousands).


March 31, 2021	$	163,253
Lapse of statute of limitations	(4,232)
Settlements with taxing authorities	(2,015)
Increases in balances related to tax positions taken during the year	22,366
March 31, 2022	$	179,372
Lapse of statute of limitations	(3,586)
Increases in balances related to tax positions taken during the year	15,214
March 31, 2023	$	191,000
Lapse of statute of limitations	(3,863)
Settlements with taxing authorities	41
Increases in balances related to tax positions taken during prior years	705
Increases in balances related to tax positions taken during the year	22,332
March 31, 2024	$	210,215

Balance Sheet Components (Tables)

12 Months Ended

Mar. 31, 2024

Balance Sheet Related Disclosures [Abstract]

Schedule of Components of Balance Sheet Asset

The following table presents the components of certain balance sheet asset amounts as of March 31, 2024 and 2023 (in thousands):


	March 31,
	2024		2023
Accounts receivable, net:
Accounts receivable	$	744,836	$	851,576
Allowance for doubtful accounts	—		(86)
Allowance for sales returns	(10,180)		(10,146)
Allowance for cooperative marketing arrangements	(41,634)		(40,495)
Allowance for customer incentive programs	(60,027)		(71,645)
Allowance for pricing programs	(91,280)		(98,822)
	$	541,715	$	630,382
Inventories:
Raw materials	$	65,209	$	171,790
Finished goods	357,304		511,103
	$	422,513	$	682,893
Other current assets:
VAT receivables	$	41,172	$	60,343
Prepaid expenses and other assets	105,098		82,533
	$	146,270	$	142,876
Property, plant and equipment, net:
Plant, buildings and improvements	$	84,189	$	69,360
Equipment and tooling	296,857		309,151
Computer equipment	26,785		31,535
Software	86,161		79,118
	493,992		489,164
Less: accumulated depreciation and amortization	(387,293)		(396,855)
	106,699		92,309
Construction-in-process	7,180		26,399
Land	2,710		2,795
	$	116,589	$	121,503
Other assets:
Deferred tax assets	$	224,831	$	171,989
Right-of-use assets	61,163		67,330
Investments in privately held companies	28,662		33,323
Investments for deferred compensation plan	29,174		28,213
Other assets	6,364		15,438
	$	350,194	$	316,293

Schedule of Components of Balance Sheet Liability

The following table presents the components of certain balance sheet liability amounts as of March 31, 2024 and 2023 (in thousands):


	March 31,
	2024		2023
Accrued and other current liabilities:
Accrued customer marketing, pricing and incentive programs	$	170,371	$	206,546
Accrued personnel expenses	145,473		103,592
Accrued sales return liability	30,098		49,462
Accrued loss for inventory purchase commitments	29,349		46,608
VAT payable	28,253		33,328
Warranty liabilities	30,270		28,861
Income taxes payable	24,196		18,788
Deferred revenue (1)	19,262		11,017
Operating lease liabilities	15,107		12,655
Contingent consideration	1,215		6,629
Other current liabilities	143,668		125,653
	$	637,262	$	643,139
Other non-current liabilities:
Operating lease liabilities	$	61,920	$	58,361
Employee benefit plan obligations	42,707		32,421
Obligation for deferred compensation plan	29,174		28,213
Deferred revenue (1)	21,097		8,277
Warranty liabilities	14,384		12,025
Deferred tax liabilities	705		2,803

Other non-current liabilities	2,603		4,595
	$	172,590	$	146,695

(1) Includes deferred revenue for PCS and other services.

Fair Value Measurements (Tables)

12 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Accounted for at Fair Value and Classified by Level within the Fair Value Hierarchy

The following table presents the Company's financial assets and liabilities that were accounted for at fair value on a recurring basis, excluding assets related to the Company's defined benefit pension plans, classified by the level within the fair value hierarchy (in thousands):


	March 31, 2024						March 31, 2023
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets:
Cash equivalents	$	1,042,604	$	—	$	—	$	661,884	$	—	$	—
Investments for deferred compensation plan included in other assets:
Cash	$	312	$	—	$	—	$	41	$	—	$	—
Common stock	573		—		—		988		—		—
Money market funds	8,129		—		—		9,606		—		—
Mutual funds	20,160		—		—		17,578		—		—
Total investments for deferred compensation plan	$	29,174	$	—	$	—	$	28,213	$	—	$	—

Currency derivative assets included in other current assets	$	—	$	913	$	—	$	—	$	107	$	—

Liabilities:
Contingent consideration included in accrued and other current liabilities	$	—	$	—	$	1,215	$	—	$	—	$	6,629

Currency derivative liabilities included in accrued and other current liabilities	$	—	$	573	$	—	$	—	$	2,187	$	—

Schedule of Change in Fair Value of Contingent Consideration

The following table summarizes the change in the Company's contingent consideration balance during fiscal year 2024 and 2023 (in thousands):


	Year Ended March 31,
	2024		2023
Beginning of the period	$	6,629	$	12,259
Fair value of contingent consideration upon acquisition	—		2,151
Change in fair value of contingent consideration	(250)		—
Settlements of contingent consideration	(5,247)		(5,954)
Effect of foreign currency exchange rate changes	83		(1,827)
End of the period	$	1,215	$	6,629

Derivative Financial Instruments (Tables)

12 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Gains and Losses on Derivative Instruments

The following table presents the amounts of gain (loss) on the Company's derivative instruments designated as hedging instruments for fiscal years 2024, 2023 and 2022 and their locations on its consolidated statements of operations and consolidated statements of comprehensive income (in thousands):


	Amount of Gain (Loss) Deferred as a Component of Accumulated Other Comprehensive Loss						Amount of Loss (Gain) Reclassified from Accumulated Other Comprehensive Loss to Costs of Goods Sold
	2024		2023		2022		2024		2023		2022

Cash flow hedges	$	1,109	$	2,625	$	6,308	$	3,964	$	(8,391)	$	(8,221)

Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Activity

The following table summarizes the activities in the Company's goodwill balance (in thousands):


	Years Ended March 31,
	2024		2023
Beginning of the period	$	454,610	$	448,175
Acquisitions	8,156		7,976
Effects of foreign currency translation	(788)		(1,541)
End of the period	$	461,978	$	454,610

Schedule of Finite-Lived Intangible Assets

The Company's acquired intangible assets were as follows (in thousands):


	March 31,
	2024						2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and trade names	$	32,390	$	(25,739)	$	6,651	$	36,790	$	(26,774)	$	10,016
Developed technology	107,421		(86,855)		20,566		121,730		(94,792)		26,938
Customer contracts/relationships	69,087		(51,061)		18,026		71,110		(47,688)		23,422
In-process R&D	—		—		—		3,526		—		3,526
Effects of foreign currency translation	(1,019)		379		(640)		(1,021)		292		(729)
Total	$	207,879	$	(163,276)	$	44,603	$	232,135	$	(168,962)	$	63,173

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 24
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482548/350-20-55-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1A

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-2

+ Details

Commitments and Contingencies (Tables)

12 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Warranty Liabilities

Changes in the Company's warranty liabilities for fiscal years 2024 and 2023 were as follows (in thousands):


	Years Ended March 31,
	2024		2023
Beginning of the period	$	40,886	$	46,219
Provision	45,413		31,089
Settlements	(41,413)		(35,919)
Effects of foreign currency translation	(232)		(503)
End of the period	$	44,654	$	40,886

Shareholders' Equity (Tables)

12 Months Ended

Mar. 31, 2024

Stockholders' Equity Note [Abstract]

Schedule of Components of Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss were as follows (in thousands):



	Currency Translation Adjustment		Defined Benefit Plans		Deferred Hedging Gains (Losses)		Total
March 31, 2023	$	(100,869)	$	4,525	$	(3,933)	$	(100,277)
Other comprehensive income (loss)	(3,078)		(12,920)		5,073		(10,925)
March 31, 2024	$	(103,947)	$	(8,395)	$	1,140	$	(111,202)

Segment Information (Tables)

12 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Schedule of Net Sales by Product Categories, Excluding Intercompany Transactions

Sales by product category in the current presentation were as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Gaming (1)	$	1,231,063	$	1,288,313	$	1,577,195
Keyboards & Combos	821,441		836,432		967,301
Pointing Devices	742,987		728,357		781,108
Video Collaboration	609,361		677,923		667,570
Webcams	325,225		378,688		676,116
Tablet Accessories	254,060		254,374		310,123
Headsets	168,478		176,576		208,318
Other (2)	145,852		198,155		293,370
Total Sales	$	4,298,467	$	4,538,818	$	5,481,101

(1) Gaming includes streaming services revenue generated by Streamlabs.

(2) Other primarily consists of mobile speakers and PC speakers.

Schedule of Net Sales to Unaffiliated Customers by Geographic Region

Sales by geographic region (based on the customers' locations) for fiscal years 2024, 2023 and 2022 were as follows (in thousands):


	Years Ended March 31,
	2024		2023		2022
Americas	$	1,896,258	$	1,930,908	$	2,317,941
EMEA	1,301,515		1,299,657		1,724,027
Asia Pacific	1,100,694		1,308,253		1,439,133
Total Sales	$	4,298,467	$	4,538,818	$	5,481,101

Schedule of Long-Lived Assets by Geographic Region

Property, plant and equipment, net (excluding software) and right-of-use assets by geographic region were as follows (in thousands):


	March 31,
	2024		2023
Americas	$	67,762	$	59,183
EMEA	30,819		38,890
Asia Pacific	58,901		69,939
Total	$	157,482	$	168,012

Restructuring (Tables)

12 Months Ended

Mar. 31, 2024

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Related Activities

The following table summarizes restructuring-related activities during fiscal years 2024 and 2023 (in thousands):



	Termination Benefits		Contract Termination and Other		Total









Accrued restructuring liability at March 31, 2022 (1)	$	561	$	896	$	1,457
Charges, net	27,631		6,942		34,573
Cash payments	(14,015)		(2,481)		(16,496)
Accrued restructuring liability at March 31, 2023 (1)	$	14,177	$	5,357	$	19,534
Charges, net	6,011		(2,145)		3,866
Cash payments	(18,375)		(1,757)		(20,132)
Accrued restructuring liability at March 31, 2024 (1)	$	1,813	$	1,455	$	3,268

(1) The accrual balances are included in accrued and other current liabilities on the Company’s consolidated balance sheets.

Leases (Tables)

12 Months Ended

Mar. 31, 2024

Leases [Abstract]

Schedule of Supplemental Information Related to Operating Leases

Supplemental cash flow information related to operating leases (in thousands):


	Years Ended March 31,
	2024		2023		2022
Cash paid for amounts included in the measurement of operating lease liabilities	$	13,489	$	16,565	$	15,400
ROU assets obtained in the exchange for operating lease liabilities	$	8,593	$	43,093	$	22,174

Weighted-average lease terms and discount rates were as follows:


	Years Ended March 31,
	2024		2023
Weighted-average remaining lease terms (in years)	7.5		8.1
Weighted-average discount rate	3.8	%	3.7	%

Schedule of Maturity of Lease Liabilities Under Non-Cancelable Operating Leases

Future lease payments included in the measurement of operating lease liabilities as of March 31, 2024 for the following five fiscal years and thereafter are as follows (in thousands):


Years Ending March 31,
2025	$	15,943
2026	13,237
2027	12,099
2028	9,396
2029	8,655
Thereafter	32,813
Total lease payments	$	92,143
Less: imputed interest	(13,235)
Less: tenant improvement allowance	(1,881)
Present value of lease liabilities	$	77,027

Summary of Significant Accounting Policies - (Change in Presentation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 4,298,467	$ 4,538,818	$ 5,481,101
As previously reported
Disaggregation of Revenue [Line Items]
Net sales		4,538,818	5,481,101
Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		0	0
Gaming
Disaggregation of Revenue [Line Items]
Net sales	1,231,063	1,288,313	1,577,195
Gaming \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		1,211,485	1,451,883
Gaming \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		76,828	125,312
Keyboards & Combos
Disaggregation of Revenue [Line Items]
Net sales	821,441	836,432	967,301
Keyboards & Combos \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		836,432	967,301
Keyboards & Combos \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		0	0
Pointing Devices
Disaggregation of Revenue [Line Items]
Net sales	742,987	728,357	781,108
Pointing Devices \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		728,357	781,108
Pointing Devices \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		0	0
Video Collaboration
Disaggregation of Revenue [Line Items]
Net sales	609,361	677,923	667,570
Video Collaboration \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		887,517	997,164
Video Collaboration \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		(209,594)	(329,594)
Webcams
Disaggregation of Revenue [Line Items]
Net sales	325,225	378,688	676,116
Webcams \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		227,692	403,651
Webcams \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		150,996	272,465
Tablet Accessories \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		254,374	310,123
Tablet Accessories \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		0	0
Headsets
Disaggregation of Revenue [Line Items]
Net sales	168,478	176,576	208,318
Headsets \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		0	0
Headsets \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		176,576	208,318
Other
Disaggregation of Revenue [Line Items]
Net sales	$ 145,852	198,155	293,370
Other \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		7,081	18,665
Other \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		191,074	274,705
Mobile Speakers
Disaggregation of Revenue [Line Items]
Net sales		0	0
Mobile Speakers \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		111,649	149,782
Mobile Speakers \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		(111,649)	(149,782)
Audio & Wearables
Disaggregation of Revenue [Line Items]
Net sales		0	0
Audio & Wearables \| As previously reported
Disaggregation of Revenue [Line Items]
Net sales		274,231	401,424
Audio & Wearables \| Reclassifications
Disaggregation of Revenue [Line Items]
Net sales		$ (274,231)	$ (401,424)

Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions	12 Months Ended
	Mar. 31, 2024 USD ($) reporting_unit	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Revenue Recognition
Sales contract with customer term (in years)	1 year
Advertising Costs
Advertising costs	$ 325.3	$ 383.7	$ 584.4
Leases
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued and other current liabilities	Accrued and other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Impairment of Goodwill
Number of reporting units \| reporting_unit	1
Plant and buildings
Property, Plant and Equipment
Estimated useful life (in years)	25 years
Operating expense
Advertising Costs
Advertising costs	$ 46.6	$ 67.3	$ 223.3
Minimum
Revenue Recognition
Required customer payment period (in days)	30 days
Intangible Assets
Estimated useful life (in years)	1 year
Product Warranties
Product warranty period (in years)	1 year
Minimum \| Equipment
Property, Plant and Equipment
Estimated useful life (in years)	3 years
Minimum \| Internal-use software
Property, Plant and Equipment
Estimated useful life (in years)	3 years
Minimum \| Tooling
Property, Plant and Equipment
Estimated useful life (in years)	6 months
Maximum
Revenue Recognition
Required customer payment period (in days)	60 days
Intangible Assets
Estimated useful life (in years)	10 years
Product Warranties
Product warranty period (in years)	3 years
Maximum \| Equipment
Property, Plant and Equipment
Estimated useful life (in years)	5 years
Maximum \| Internal-use software
Property, Plant and Equipment
Estimated useful life (in years)	7 years
Maximum \| Tooling
Property, Plant and Equipment
Estimated useful life (in years)	1 year
Maximum \| Leasehold improvements
Property, Plant and Equipment
Estimated useful life (in years)	10 years

Summary of Significant Accounting Policies (Concentration Risk) (Details) - Customer concentration risk	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Customer A \| Gross sales
Concentration Risk [Line Items]
Concentration credit risk by major customer (as a percent)	13.00%	13.00%	15.00%
Customer A \| Accounts receivable
Concentration Risk [Line Items]
Concentration credit risk by major customer (as a percent)	14.00%	12.00%
Customer B \| Gross sales
Concentration Risk [Line Items]
Concentration credit risk by major customer (as a percent)	18.00%	19.00%	17.00%
Customer B \| Accounts receivable
Concentration Risk [Line Items]
Concentration credit risk by major customer (as a percent)	20.00%	21.00%
Customer C \| Gross sales
Concentration Risk [Line Items]
Concentration credit risk by major customer (as a percent)	14.00%	15.00%	14.00%
Customer C \| Accounts receivable
Concentration Risk [Line Items]
Concentration credit risk by major customer (as a percent)	15.00%	15.00%

Net Income Per Share (Computation of Basic and Diluted Net Income per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Net income
Net income	$ 612,143	$ 364,575	$ 644,513
Net income	$ 612,143	$ 364,575	$ 644,513
Shares used in net income per share computation:
Weighted average shares outstanding - basic (in shares)	156,776	162,302	167,447
Effect of potentially dilutive equivalent shares (in shares)	1,395	1,402	2,967
Weighted average shares outstanding - diluted (in shares)	158,171	163,704	170,414
Net income per share:
Basic (in dollars per share)	$ 3.90	$ 2.25	$ 3.85
Diluted (in dollars per share)	$ 3.87	$ 2.23	$ 3.78

Net Income Per Share (Narratives) (Details) - shares shares in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Anti-dilutive equivalents shares excluded (in shares)	1.1	2.0	2.0

Employee Stock-Based Compensation (Additional Information For Share Based Compensation) (Details) shares in Thousands, $ in Millions		12 Months Ended
	Jun. 29, 2022 shares	Mar. 31, 2024 USD ($) installment shares	Mar. 31, 2023 USD ($) shares	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 shares
Employee Benefit Plan
Share-based compensation expenses capitalized as inventory \| $		$ 6.3	$ 5.6	$ 5.2
Future stock-based compensation cost \| $		$ 137.7
Recognized weighted cost (in years)		2 years 3 months 18 days
Granted—PSUs
Employee Benefit Plan
RSUs outstanding (in shares)		700
Percent of granted and vested of target number (as a percent)		100.00%
RSU
Employee Benefit Plan
RSUs outstanding (in shares)		3,478	3,456	3,046	3,643
1996 ESPP and 2006 ESPP
Employee Benefit Plan
Purchase price of shares expressed as percentage of the fair market value (as a percent)		85.00%
Offering period of ESPP Plan (in months)		6 months
Number of shares reserved for issuance (in shares)		29,000
Number of shares available for issuance (in shares)		3,100
2006 Plan
Employee Benefit Plan
Number of shares reserved for issuance (in shares)		33,800
Number of shares available for issuance (in shares)		7,600
Additional issuance shares (in shares)	3,300
2006 Plan \| Stock options
Employee Benefit Plan
Expiration period (in years)		10 years
2006 Plan \| Service-based RSU \| Maximum
Employee Benefit Plan
Vesting installment \| installment		4
2006 Plan \| Granted—PSUs
Employee Benefit Plan
Performance period (in years)		3 years

Employee Stock-Based Compensation (Share-Based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Share-based compensation expense and related tax benefit
Total share-based compensation expense	$ 82,889	$ 70,782	$ 93,479
Income tax benefit	(15,305)	(9,750)	(26,987)
Total share-based compensation expense, net of income tax benefit	67,584	61,032	66,492
Cost of goods sold
Share-based compensation expense and related tax benefit
Total share-based compensation expense	8,004	5,635	6,695
Marketing and selling
Share-based compensation expense and related tax benefit
Total share-based compensation expense	35,780	34,707	37,796
Research and development
Share-based compensation expense and related tax benefit
Total share-based compensation expense	17,836	15,292	18,356
General and administrative
Share-based compensation expense and related tax benefit
Total share-based compensation expense	$ 21,269	$ 15,148	$ 30,632

Employee Stock-Based Compensation (Fair Value Assumptions) (Details) - $ / shares	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Stock options
Employee Benefit Plan
Expected dividend rate			1.18%
Risk-free interest rate			1.99%
Expected volatility			34.00%
Expected term (years)			6 years 2 months 12 days
Weighted average grant date fair value per share (in dollars per share)			$ 25.88
Employee Stock Purchase Plans
Employee Benefit Plan
Expected dividend rate	1.61%	1.78%	1.03%
Risk-free interest rate	5.36%	3.86%	0.27%
Expected volatility	33.00%	46.00%	35.00%
Expected term (years)	6 months	6 months	6 months
Granted (in dollars per share)	$ 19.02	$ 16.32	$ 23.55
Weighted average grant date fair value per share (in dollars per share)	$ 19.02	$ 16.32	$ 23.55
PSUs
Employee Benefit Plan
Expected dividend rate	1.90%	1.46%	0.78%
Risk-free interest rate	3.83%	2.78%	0.31%
Expected volatility	41.00%	39.00%	37.00%
Expected term (years)	3 years	3 years	3 years
Granted (in dollars per share)	$ 67	$ 69	$ 124
Weighted average grant date fair value per share (in dollars per share)	$ 67	$ 69	$ 124

Employee Stock-Based Compensation (Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Number of Shares
Granted (in shares)	0		0
Stock options
Number of Shares
Options outstanding, beginning of period (in shares)	1,120,000	1,393,000	622,000
Granted (in shares)			842,000
Exercised (in shares)	(181,000)	(155,000)	(71,000)
Forfeited (in shares)	(176,000)	(118,000)
Options outstanding, end of period (in shares)	763,000	1,120,000	1,393,000
Vested and exercisable (in shares)	489,000
Weighted-Average Exercise Price
Beginning of period (in dollars per share)	$ 66
Exercised (in dollars per share)	43
Forfeited (in dollars per share)	80
End of period (in dollars per share)	68	$ 66
Vested and exercisable (in dollars per share)	$ 61
Weighted-Average Remaining Contractual Term
Outstanding, Weighted-Average Remaining Contractual Term (in years)	7 years	7 years 7 months 6 days
Vested and exercisable, Weighted-Average Remaining Contractual Term (in years)	6 years 6 months
Aggregate Intrinsic Value
Exercised	$ 6,160	$ 6,482	$ 5,573
Outstanding, March 31, 2024	16,243	$ 7,491
Vested and exercisable, March 31, 2024	$ 13,960

Employee Stock-Based Compensation (PSU and RSU Rollforward) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
RSU
Number of Shares
Outstanding, beginning of period (in shares)	3,456	3,046	3,643
Vested (in shares)	(1,200)	(1,143)	(1,463)
Forfeited (in shares)	(631)	(438)	(205)
Outstanding, end of period (in shares)	3,478	3,456	3,046
Weighted-Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share)	$ 66	$ 68	$ 45
Vested (in dollars per share)	58
Forfeited (in dollars per share)	73
Outstanding, end of period (in dollars per share)	$ 65	$ 66	$ 68
Aggregate Fair Value
Aggregate Fair Value, Vested	$ 92,340	$ 85,152	$ 133,977
Granted—RSUs
Number of Shares
Granted (in shares)	1,396	1,584	868
Weighted-Average Grant Date Fair Value
Granted (in dollars per share)	$ 59	$ 53	$ 103
Granted—PSUs
Number of Shares
Granted (in shares)	457	407	203
Outstanding, end of period (in shares)	700
Weighted-Average Grant Date Fair Value
Granted (in dollars per share)	$ 67	$ 69	$ 124

Employee Benefit Plans ( Net Periodic Benefit Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Compensation Related Costs [Abstract]
Service costs	$ 11,479	$ 13,195	$ 14,693
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax
Interest costs	$ 3,844	$ 2,408	$ 920
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax
Expected return on plan assets	$ (6,950)	$ (3,754)	$ (2,930)
Amortization:
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax
Net prior service credit recognized	$ (500)	$ (458)	$ (465)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Immediate Recognition of Actuarial Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax
Net actuarial gain recognized	$ (179)	$ (3,047)	$ (2,158)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Curtailment Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax
Curtailment gain	$ 0	$ (4,225)	$ 0
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax
Settlement loss (gain)	$ 922	$ (339)	$ 0
Total net periodic benefit cost	$ 8,616	$ 3,780	$ 10,060

Employee Benefit Plans (Changes in Projected Benefit Obligations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Changes in projected benefit obligations
Projected benefit obligations, beginning of the year	$ 195,336	$ 207,551
Service costs	11,479	13,195	$ 14,693
Interest costs	3,844	2,408	920
Plan participant contributions	6,731	6,870
Actuarial loss (gain)	13,737	(22,965)
Benefits paid	(2,405)	(2,646)
Transfer of prior vested benefits	6,775	11,579
Plan amendments	380	0
Settlement	(22,522)	(15,348)
Curtailment	0	(3,923)
Administrative expense paid	(158)	(147)
Currency exchange rate changes	280	(1,238)
Projected benefit obligations, end of the year	$ 213,477	$ 195,336	$ 207,551

Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 184,800	$ 170,300
Company's expected contribution to defined benefit pension plans in next fiscal year	8,500
Expense for defined contribution plans	$ 14,400	14,400	$ 13,900
Deferred Compensation Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of vested salary and incentive compensation deferrals permitted to eligible employees (as a percent)	100.00%
Investments for deferred compensation plan	$ 29,174	28,213
Deferred Compensation Plan \| Other assets
Defined Benefit Plan Disclosure [Line Items]
Investments for deferred compensation plan	29,200	28,200
Deferred Compensation Plan \| Other liabilities
Defined Benefit Plan Disclosure [Line Items]
Investments for deferred compensation plan	$ 29,200	$ 28,200
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (as a percent)	33.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (as a percent)	28.00%
Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (as a percent)	28.00%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (as a percent)	4.00%

Employee Benefit Plans (Changes in the Fair Value of Defined Benefit Pension Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of year	$ 162,599	$ 156,118
Actual return on plan assets	7,558	(6,008)
Employer contributions	10,888	11,645
Plan participant contributions	6,731	6,870
Benefits paid	(2,405)	(2,646)
Transfer of prior vested benefits	6,775	11,579
Settlement	(22,522)	(15,348)
Administrative expense paid	(158)	(147)
Currency exchange rate changes	1,174	536
Fair value of plan assets, end of year	$ 170,640	$ 162,599

Employee Benefit Plans (Fair Value of the Defined Benefit Pension Plan Assets by Major Categories and by Levels within the Fair Value Hierarchy) General (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	$ 170,640	$ 162,599	$ 156,118
Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	149,683	130,578
Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	20,957	32,021
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	14,375	7,071
Cash and cash equivalents \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	14,375	7,071
Cash and cash equivalents \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	0
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	54,534	51,963
Equity securities \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	54,534	51,963
Equity securities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	0
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	42,153	43,493
Debt securities \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	42,153	43,493
Debt securities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	0
Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	42,427	44,907
Real estate funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	32,286	21,197
Real estate funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	10,141	23,710
Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	10,400	8,513
Hedge funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	606
Hedge funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	10,400	7,907
Other
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	6,751	6,652
Other \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	6,335	6,248
Other \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	$ 416	$ 404

Employee Benefit Plans (Net Funded Status) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Compensation Related Costs [Abstract]
Fair value of plan assets	$ 170,640	$ 162,599	$ 156,118
Less: projected benefit obligations	213,477	195,336	$ 207,551
Underfunded status	$ (42,837)	$ (32,737)

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References + Details

Employee Benefit Plans (Amounts Recognized on the Balance Sheet for the Plans) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Compensation Related Costs [Abstract]
Current liabilities	$ 1,391	$ 1,407
Non-current liabilities	41,446	31,330
Total liabilities	$ 42,837	$ 32,737

Employee Benefit Plans (Amounts Recognized in Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Compensation Related Costs [Abstract]
Net prior service credits	$ 1,385	$ 2,201
Net actuarial gain (loss)	(6,445)	5,690
Accumulated other comprehensive income (loss)	(5,060)	7,891
Deferred taxes	(3,335)	(3,366)
Accumulated other comprehensive income (loss), net of tax	$ (8,395)	$ 4,525

Employee Benefit Plans (Actuarial Assumptions for the Pension Plans) (Details)	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Minimum
Benefit Obligations:
Discount rate (as a percent)	1.50%	1.00%
Estimated rate of compensation increase (as a percent)	2.25%	2.25%
Cash balance interest credit rate (as a percent)	0.50%	0.00%
Net Periodic Costs:
Discount rate (as a percent)	1.50%	0.50%	0.25%
Estimated rate of compensation increase (as a percent)	2.25%	2.00%	2.00%
Expected average rate of return on plan assets (as a percent)	0.50%	1.00%	1.00%
Cash balance interest credit rate (as a percent)	0.50%	0.00%	0.00%
Maximum
Benefit Obligations:
Discount rate (as a percent)	7.00%	7.25%
Estimated rate of compensation increase (as a percent)	10.00%	10.00%
Cash balance interest credit rate (as a percent)	1.75%	1.75%
Net Periodic Costs:
Discount rate (as a percent)	7.25%	6.75%	6.00%
Estimated rate of compensation increase (as a percent)	10.00%	10.00%	10.00%
Expected average rate of return on plan assets (as a percent)	4.50%	2.50%	2.25%
Cash balance interest credit rate (as a percent)	1.75%	1.75%	1.75%

Employee Benefit Plans (Expected Benefit Payments) (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Compensation Related Costs [Abstract]
2025	$ 13,068
2026	12,113
2027	14,465
2028	13,055
2029	12,959
Next five fiscal years	68,520
Total expected benefit payments by the plan	$ 134,180

Other Income (Expense), Net (Other Income (Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Other income (expense), net
Investment gain (loss) related to the deferred compensation plan	$ 4,320	$ (1,961)	$ 1,231
Currency exchange loss, net	(8,770)	(7,337)	(4,604)
Loss on investments, net	(14,674)	(14,073)	(1,683)
Non-service cost net pension income and other	2,748	10,093	5,616
Other income (expense), net	$ (16,376)	$ (13,278)	$ 560

Income Taxes (Income (Loss) Before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Swiss	$ 502,291	$ 282,970	$ 579,258
Non-Swiss	119,305	180,552	196,560
Income before income taxes	$ 621,596	$ 463,522	$ 775,818

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(11))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-30

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479557/942-235-S99-1

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 25
-Paragraph 1
-SubTopic 20
-Topic 940
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481913/940-20-25-1

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(10))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(15))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

+ Details

Income Taxes (Provision for (Benefit From) Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Current:
Swiss	$ 26,833	$ 19,405	$ 59,659
Non-Swiss	25,044	48,829	44,094
Deferred:
Swiss	(47,517)	26,629	29,198
Non-Swiss	5,093	4,085	(1,646)
Provision for income taxes	$ 9,453	$ 98,947	$ 131,305

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands			3 Months Ended	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Mar. 28, 2024	Dec. 29, 2023	Mar. 31, 2024	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Net operating loss and tax credit carryforwards
Benefit related to reversal of uncertain tax positions			$ 25,100
Benefit due to remeasurement of deferred tax assets	$ 50,100			$ 5,100
Recognition of excess tax benefits				18,700
Valuation allowance			35,536	35,536	$ 30,766
Cumulative amount of unremitted earnings of non-Swiss subsidiaries			426,200	426,200
Deferred income tax liability			16,000	16,000
Unrecognized tax benefits that would impact effective tax rate			192,700	192,700	186,800
Unrecognized tax benefits, uncertain tax positions			210,215	210,215	191,000	$ 179,372	$ 163,253
Interest and penalties in income tax expense				1,700	2,700
Accrued interest and penalties related to uncertain tax positions			7,800	7,800	6,100
Minimum
Net operating loss and tax credit carryforwards
Effective income tax rates (as a percent)		13.61%
Maximum
Net operating loss and tax credit carryforwards
Effective income tax rates (as a percent)		14.28%
Non-current income tax payable
Net operating loss and tax credit carryforwards
Unrecognized tax benefits, uncertain tax positions			112,600	112,600	$ 106,400
Swiss Federal Tax Administration (FTA)
Net operating loss and tax credit carryforwards
Foreign net operating loss carryforwards			15,000	$ 15,000
Swiss
Net operating loss and tax credit carryforwards
Statutory income tax rate (as a percent)				8.50%	8.50%	8.50%
State and Local Jurisdiction \| California Franchise Tax Board
Net operating loss and tax credit carryforwards
Valuation allowance			35,300	$ 35,300	$ 30,800
Foreign
Net operating loss and tax credit carryforwards
Foreign net operating loss carryforwards			55,000	55,000
Foreign tax credit carryforwards			$ 79,700	$ 79,700

Income Taxes (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Expected tax provision at statutory income tax rates	$ 52,836	$ 39,399	$ 65,945
Income taxes at different rates	47,595	38,467	61,296
Research and development tax credits	(9,738)	(152)	(5,957)
Swiss Tax Ruling	(50,051)	0	0
Executive compensation	407	749	4,683
Stock-based compensation	4,019	5,736	(9,141)
Deferred tax effects from TRAF	(33,926)	0	0
Valuation allowance	4,780	908	887
Impairment	0	1,881	0
Restructuring charges / (credits)	0	(1,764)	0
Unrecognized tax benefits	11,535	13,284	16,577
Audit settlement	0	0	(3,655)
FDII deduction	(18,675)	0	0
Other, net	671	439	670
Provision for income taxes	$ 9,453	$ 98,947	$ 131,305

Income Taxes (Deferred Income Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Deferred tax assets:
Tax attributes carryforward	$ 43,846	$ 36,700
Future tax deduction from Swiss Tax Ruling	49,755	0
Accruals	77,181	85,786
Depreciation and amortization	121	707
Tax step-up of goodwill from TRAF	105,942	100,514
Share-based compensation	13,718	11,093
Gross deferred tax assets	290,563	234,800
Valuation allowance	(35,536)	(30,766)
Deferred tax assets after valuation allowance	255,027	204,034
Deferred tax liabilities:
Acquired intangible assets and other	(30,901)	(34,848)
Deferred tax liabilities	(30,901)	(34,848)
Deferred tax assets, net	$ 224,126	$ 169,186

Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at the beginning of the period	$ 191,000	$ 179,372	$ 163,253
Lapse of statute of limitations	(3,863)	(3,586)	(4,232)
Settlements with taxing authorities			(2,015)
Increases in balances related to tax positions taken during the year	22,332	15,214	22,366
Settlements with taxing authorities	41
Increases in balances related to tax positions taken during prior years	705
Balance at the end of the period	$ 210,215	$ 191,000	$ 179,372

Balance Sheet Components (Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Accounts receivable, net:
Accounts receivable	$ 744,836	$ 851,576
Accounts receivable, net	541,715	630,382
Inventories:
Raw materials	65,209	171,790
Finished goods	357,304	511,103
Inventory, net	422,513	682,893
Other current assets:
VAT receivables	41,172	60,343
Prepaid expenses and other assets	105,098	82,533
Other current assets, total	146,270	142,876
Property, plant and equipment, net:
Property, plant and equipment, gross	493,992	489,164
Less: accumulated depreciation and amortization	(387,293)	(396,855)
Property, plant and equipment before land and construction in progress	106,699	92,309
Property, plant and equipment, net	116,589	121,503
Other assets:
Deferred tax assets	224,831	171,989
Right-of-use assets	61,163	67,330
Investments in privately held companies	28,662	33,323
Other assets	6,364	15,438
Other assets, total	350,194	316,293
Deferred Compensation Plan
Other assets:
Investments for deferred compensation plan	29,174	28,213
Plant, buildings and improvements
Property, plant and equipment, net:
Property, plant and equipment, gross	84,189	69,360
Equipment and tooling
Property, plant and equipment, net:
Property, plant and equipment, gross	296,857	309,151
Computer equipment
Property, plant and equipment, net:
Property, plant and equipment, gross	26,785	31,535
Software
Property, plant and equipment, net:
Property, plant and equipment, gross	86,161	79,118
Construction-in-process
Property, plant and equipment, net:
Property, plant and equipment, gross	7,180	26,399
Land
Property, plant and equipment, net:
Property, plant and equipment, gross	2,710	2,795
Allowance for doubtful accounts
Accounts receivable, net:
Allowance for receivables	0	(86)
Allowance for sales returns
Accounts receivable, net:
Allowance for receivables	(10,180)	(10,146)
Allowance for cooperative marketing arrangements
Accounts receivable, net:
Allowance for receivables	(41,634)	(40,495)
Allowance for customer incentive programs
Accounts receivable, net:
Allowance for receivables	(60,027)	(71,645)
Allowance for pricing programs
Accounts receivable, net:
Allowance for receivables	$ (91,280)	$ (98,822)

Balance Sheet Components (Balance Sheet Liability) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Accrued and other current liabilities:
Accrued customer marketing, pricing and incentive programs	$ 170,371	$ 206,546
Accrued personnel expenses	145,473	103,592
Accrued sales return liability	30,098	49,462
Accrued loss for inventory purchase commitments	29,349	46,608
VAT payable	28,253	33,328
Warranty liabilities	30,270	28,861
Income taxes payable	24,196	18,788
Deferred revenue	19,262	11,017
Operating lease liabilities	15,107	12,655
Contingent consideration	1,215	6,629
Other current liabilities	143,668	125,653
Accrued and other current liabilities	637,262	643,139
Other non-current liabilities:
Operating lease liabilities	61,920	58,361
Employee benefit plan obligations	42,707	32,421
Deferred revenue	21,097	8,277
Warranty liabilities	14,384	12,025
Deferred tax liabilities	705	2,803
Other non-current liabilities	2,603	4,595
Non-current liabilities	172,590	146,695
Deferred Compensation Plan
Other non-current liabilities:
Obligation for deferred compensation plan	$ 29,174	$ 28,213

Fair Value Measurements (Financial Assets and Liabilities, Classified by Level) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Contingent consideration included in accrued and other current liabilities	$ 1,215	$ 6,629
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued and other current liabilities	Accrued and other current liabilities
Deferred Compensation Plan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	$ 29,174	$ 28,213
Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	1,042,604	661,884
Investments for deferred compensation plan	29,174	28,213
Currency derivative assets included in other current assets	0	0
Contingent consideration included in accrued and other current liabilities	0	0
Currency derivative liabilities included in accrued and other current liabilities	0	0
Recurring \| Level 1 \| Deferred Compensation Plan \| Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	312	41
Recurring \| Level 1 \| Deferred Compensation Plan \| Common stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	573	988
Recurring \| Level 1 \| Deferred Compensation Plan \| Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	8,129	9,606
Recurring \| Level 1 \| Deferred Compensation Plan \| Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	20,160	17,578
Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	0	0
Investments for deferred compensation plan	0	0
Currency derivative assets included in other current assets	913	107
Contingent consideration included in accrued and other current liabilities	0	0
Currency derivative liabilities included in accrued and other current liabilities	573	2,187
Recurring \| Level 2 \| Deferred Compensation Plan \| Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	0	0
Recurring \| Level 2 \| Deferred Compensation Plan \| Common stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	0	0
Recurring \| Level 2 \| Deferred Compensation Plan \| Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	0	0
Recurring \| Level 2 \| Deferred Compensation Plan \| Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	0	0
Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	0	0
Investments for deferred compensation plan	0	0
Currency derivative assets included in other current assets	0	0
Contingent consideration included in accrued and other current liabilities	1,215	6,629
Currency derivative liabilities included in accrued and other current liabilities	0	0
Recurring \| Level 3 \| Deferred Compensation Plan \| Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	0	0
Recurring \| Level 3 \| Deferred Compensation Plan \| Common stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	0	0
Recurring \| Level 3 \| Deferred Compensation Plan \| Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	0	0
Recurring \| Level 3 \| Deferred Compensation Plan \| Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments for deferred compensation plan	$ 0	$ 0

Fair Value Measurements (Change in Fair Value of Contingent Consideration) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Change in Fair Value of Contingent Consideration [Roll Forward]
Beginning of the period	$ 6,629	$ 12,259
Fair value of contingent consideration upon acquisition	0	2,151
Change in fair value of contingent consideration	(250)	0
Settlements of contingent consideration	(5,247)	(5,954)
Effect of foreign currency exchange rate changes	83	(1,827)
End of the period	$ 1,215	$ 6,629
Business Combination, Contingent Consideration, Liability, Fair Value by Fair Value Hierarchy Level [Extensible Enumeration]	Change in fair value of contingent consideration for business acquisition	Change in fair value of contingent consideration for business acquisition

Fair Value Measurements (Narrative) (Details) - USD ($)	12 Months Ended
Fair Value Measurements (Narrative) (Details) - USD ($)	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investment	$ 18,000,000	$ 20,500,000
Impairment of equity method investments	0	21,400,000	$ 0
Initial cost basis of securities	10,100,000	12,600,000
Equity securities without readily determinable fair value, upward price adjustment, annual amount		6,900,000
Financial asset impairment charges	0	0	0
Impairment loss, before tax	9,600,000
Impairment of intangible assets	3,526,000	0	7,000,000
Non-financial asset impairment charges		0
Discontinued operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of intangible assets			$ 7,000,000
Level 1 \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments for deferred compensation plan	$ 29,174,000	$ 28,213,000

Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Foreign exchange forward and swap \| Not designated as hedging instrument
Derivative [Line Items]
Derivative term of contract (in months)	1 month
Derivative, notional amount	$ 79.4	$ 111.2
Foreign exchange forward \| Cash flow hedging \| Designated as hedging instruments
Derivative [Line Items]
Derivative term of contract (in months)	4 months
Derivative, notional amount	$ 90.5	$ 72.6
Net losses to be reclassified into earnings in the next 12 months	$ 1.1

Derivative Financial Instruments (Gains and Losses on Derivative Instruments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Deferred as a Component of Accumulated Other Comprehensive Loss	$ 1,109	$ 2,625	$ 6,308
Amount of Loss (Gain) Reclassified from Accumulated Other Comprehensive Loss to Costs of Goods Sold	3,964	(8,391)	(8,221)
Cash flow hedges \| Designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Deferred as a Component of Accumulated Other Comprehensive Loss	1,109	2,625	6,308
Amount of Loss (Gain) Reclassified from Accumulated Other Comprehensive Loss to Costs of Goods Sold	$ 3,964	$ (8,391)	$ (8,221)

Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Goodwill [Roll Forward]
Beginning of the period	$ 454,610	$ 448,175
Acquisitions	8,156	7,976
Effects of foreign currency translation	(788)	(1,541)
End of the period	$ 461,978	$ 454,610

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References + Details

Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 207,879	$ 232,135
Accumulated Amortization	(163,276)	(168,962)
Net Carrying Amount	44,603	63,173
Effects of foreign currency translation, gross carrying amount	(1,019)	(1,021)
Effects of foreign currency translation, accumulated amortization	379	292
Total net carrying amount	(640)	(729)
In-process R&D
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0	3,526
Net Carrying Amount	0	3,526
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	32,390	36,790
Accumulated Amortization	(25,739)	(26,774)
Net Carrying Amount	6,651	10,016
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	107,421	121,730
Accumulated Amortization	(86,855)	(94,792)
Net Carrying Amount	20,566	26,938
Customer contracts/relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	69,087	71,110
Accumulated Amortization	(51,061)	(47,688)
Net Carrying Amount	$ 18,026	$ 23,422

Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 21,681	$ 24,407	$ 30,179
2025	19,800
2026	12,900
2027	5,700
2028	4,100
2029	1,800
Thereafter	$ 300

Financing Arrangements (Details) - USD ($)	Mar. 31, 2024	Mar. 31, 2023
Financing Arrangements
Borrowing outstanding	$ 0	$ 0
Line of credit
Financing Arrangements
Maximum borrowing capacity	172,500,000	181,300,000
Letters of credit outstanding	$ 14,300,000	$ 13,600,000

Commitments and Contingencies (Product Warranties) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Changes in the warranty liability:
Beginning of the period	$ 40,886	$ 46,219
Provision	45,413	31,089
Settlements	(41,413)	(35,919)
Effects of foreign currency translation	(232)	(503)
End of the period	$ 44,654	$ 40,886

Commitments and Contingencies (Narrative) (Details)	Mar. 31, 2024 USD ($)
Indemnification Agreement
Commitment and Contingency [Line Items]
Loss contingency accrual	$ 0

Shareholders' Equity (Narrative) (Details) SFr / shares in Units, $ / shares in Units, $ in Thousands, SFr in Millions	1 Months Ended											12 Months Ended			39 Months Ended
	May 31, 2024 SFr / shares	May 31, 2024 USD ($) $ / shares	Sep. 30, 2023 SFr / shares	Sep. 30, 2023 USD ($) $ / shares	Jun. 30, 2023 USD ($) shares	Sep. 30, 2022 SFr / shares	Sep. 30, 2022 USD ($) $ / shares	Jul. 31, 2022 USD ($)	Sep. 30, 2021 SFr / shares	Sep. 30, 2021 USD ($) $ / shares	Apr. 30, 2021 USD ($)	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2023 USD ($) $ / shares	Mar. 31, 2022 USD ($) $ / shares	Jul. 27, 2023 USD ($) shares	Mar. 31, 2024 CHF (SFr) SFr / shares shares	Mar. 31, 2023 SFr / shares shares	Dec. 31, 2020 shares	May 31, 2020 USD ($)
Shareholder's equity
Nominal share capital issued (CHF) \| SFr																SFr 43.3
Common stock outstanding (in shares) \| shares												173,106,620				173,106,620
Shares, par value (in CHF per share) \| SFr / shares																SFr 0.25	SFr 0.25
Shares in treasury, at cost (in shares) \| shares												19,243,358				19,243,358	13,763,000
Shares that may be issued out of conditional capital (in shares) \| shares												50,000,000				50,000,000	50,000,000
Conditionally authorized shares (in shares) \| shares																		17,310,662
Unappropriated retained earnings												$ 1,100,000				SFr 1,000.0
Cash dividends per share (in dollars per share) \| (per share)			SFr 1.06	$ 1.16		SFr 0.96	$ 0.98		SFr 0.87	$ 0.95		$ 1.19	$ 1.00	$ 0.95
Payment of cash dividends				$ 182,300			$ 158,700			$ 159,400		$ 182,305	$ 158,680	$ 159,410
Minimum percentage of annual net income to be retained in legal reserves (as a percent)												5.00%
Threshold of legal reserves as a percentage of issued and outstanding aggregate par value per share capital at which a minimum percentage of annual net income is no longer required to be retained (as a percent)												20.00%				20.00%
Portion of appropriated retained earnings representing legal reserves												$ 10,600
Purchases of registered shares (in shares) \| shares												4,100,000
Stock repurchased during period, value												$ 523,751	$ 418,346	$ 412,022
Stock repurchase program, threshold, maximum shares held, percentage					10.00%
Stock repurchase program, threshold, maximum shares available for purchase \| shares					17,300,000
Stock repurchase program, capital band for cancellation, percentage												10.00%
2020 Share Repurchase Program
Shareholder's equity
Share repurchase, authorized amount (up to)								$ 1,500,000			$ 1,000,000								$ 250,000
Increase in authorized amount								$ 500,000			$ 750,000
Purchases of registered shares (in shares) \| shares												2,600,000			16,700,000
Stock repurchased during period, value												$ 159,100			$ 1,200,000
2023 Share Repurchase Program
Shareholder's equity
Share repurchase, authorized amount (up to)					$ 1,000,000
Purchases of registered shares (in shares) \| shares												4,500,000
Stock repurchased during period, value												$ 364,700
Period for which repurchase program will remain in effect (in years)					3 years
Aggregate cost of treasury stock acquired												$ 19,500
Shares repurchased for cancellation (in shares) \| shares												4,100,000
Shares acquired for cancellation												$ 332,100
Amount of authorized shares available for repurchase												$ 635,800
Subsequent event
Shareholder's equity
Cash dividends declared per share (in dollars/CHF per share) \| (per share)	SFr 1.16	$ 1.28
Common stock dividends		$ 197,200
Common stock capital shares reserved for future issuance, employee equity incentive plans
Shareholder's equity
Shares that may be issued out of conditional capital (in shares) \| shares												25,000,000				25,000,000
Common stock capital shares reserved for future issuance, conversion rights under future convertible bond issuance
Shareholder's equity
Shares that may be issued out of conditional capital (in shares) \| shares												25,000,000				25,000,000

Shareholders' Equity (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	$ 2,257,560	$ 2,398,738	$ 2,261,789
Other comprehensive income (loss)	(10,925)	3,846	4,792
End of the period balance	2,233,653	2,257,560	2,398,738
Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	(100,869)
Other comprehensive income (loss)	(3,078)
End of the period balance	(103,947)	(100,869)
Defined Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	4,525
Other comprehensive income (loss)	(12,920)
End of the period balance	(8,395)	4,525
Deferred Hedging Gains (Losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	(3,933)
Other comprehensive income (loss)	5,073
End of the period balance	1,140	(3,933)
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	(100,277)	(104,123)	(108,915)
End of the period balance	$ (111,202)	$ (100,277)	$ (104,123)

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 323
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Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

Segment Information (Narratives) (Details)	12 Months Ended
Segment Information (Narratives) (Details)	Mar. 31, 2024 segment
Segment Reporting [Abstract]
Number of operating segments	1

Segment Information (Net Sales by Product Categories) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	$ 4,298,467	$ 4,538,818	$ 5,481,101
Gaming
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	1,231,063	1,288,313	1,577,195
Keyboards & Combos
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	821,441	836,432	967,301
Pointing Devices
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	742,987	728,357	781,108
Video Collaboration
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	609,361	677,923	667,570
Webcams
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	325,225	378,688	676,116
Tablet Accessories
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	254,060	254,374	310,123
Headsets
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	168,478	176,576	208,318
Other
Net sales to unaffiliated customers and long-lived assets by geographic region
Total Sales	$ 145,852	$ 198,155	$ 293,370

Segment Information (Net Sales by Geographic Region) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	$ 4,298,467	$ 4,538,818	$ 5,481,101
Americas
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	1,896,258	1,930,908	2,317,941
EMEA
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	1,301,515	1,299,657	1,724,027
Asia Pacific
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	$ 1,100,694	$ 1,308,253	$ 1,439,133
United States \| Revenue benchmark \| Geographic concentration
Net sales to unaffiliated customers and long-lived assets by geographic region
Concentration credit risk by major customer (as a percent)	36.00%	35.00%	34.00%
Germany \| Revenue benchmark \| Geographic concentration
Net sales to unaffiliated customers and long-lived assets by geographic region
Concentration credit risk by major customer (as a percent)	14.00%	14.00%	15.00%
China \| Revenue benchmark \| Geographic concentration
Net sales to unaffiliated customers and long-lived assets by geographic region
Concentration credit risk by major customer (as a percent)	10.00%	11.00%	10.00%
Switzerland \| Revenue benchmark \| Geographic concentration
Net sales to unaffiliated customers and long-lived assets by geographic region
Concentration credit risk by major customer (as a percent)	2.00%	3.00%	3.00%

Segment Information (Geographic Long-Lived Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	$ 157,482	$ 168,012
Americas
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	67,762	59,183
EMEA
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	30,819	38,890
Asia Pacific
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	58,901	69,939
United States
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	66,500	58,700
China
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	41,200	48,800
IRELAND
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	16,200	17,700
Switzerland
Net sales to unaffiliated customers and long-lived assets by geographic region
Total long-lived assets	$ 9,000	$ 13,700

Restructuring (Details) - USD ($) $ in Thousands	12 Months Ended
Restructuring (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Restructuring reserve
Charges, net	$ 3,866	$ 34,573	$ 2,165
Continuing operations
Restructuring reserve
Balance at the beginning of the period	19,534	1,457
Charges, net	3,866	34,573
Cash payments	(20,132)	(16,496)
Balance at the end of the period	3,268	19,534	1,457
Continuing operations \| Termination Benefits
Restructuring reserve
Balance at the beginning of the period	14,177	561
Charges, net	6,011	27,631
Cash payments	(18,375)	(14,015)
Balance at the end of the period	1,813	14,177	561
Continuing operations \| Contract Termination and Other
Restructuring reserve
Balance at the beginning of the period	5,357	896
Charges, net	(2,145)	6,942
Cash payments	(1,757)	(2,481)
Balance at the end of the period	$ 1,455	$ 5,357	$ 896

Leases (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Leases (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Leases [Abstract]
Operating lease costs	$ 19.5	$ 21.2	$ 17.3

Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 13,489	$ 16,565	$ 15,400
ROU assets obtained in the exchange for operating lease liabilities	$ 8,593	$ 43,093	$ 22,174

Leases (Maturity of Lease Liabilities) (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Leases [Abstract]
2025	$ 15,943
2026	13,237
2027	12,099
2028	9,396
2029	8,655
Thereafter	32,813
Total lease payments	92,143
Less: imputed interest	(13,235)
Less: tenant improvement allowance	(1,881)
Present value of lease liabilities	$ 77,027

Leases (Average Lease Terms and Discount Rates) (Details)	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Weighted-average remaining lease terms (in years)	7 years 6 months	8 years 1 month 6 days
Weighted-average discount rate	3.80%	3.70%

Schedule II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Allowance for doubtful accounts:
VALUATION AND QUALIFYING ACCOUNTS
Balance at Beginning of Year	$ 86	$ 2,212	$ 1,161
Charged (Credited) to Statement of Operations	(86)	(2,019)	1,691
Claims and Adjustments Applied Against Allowances	0	(107)	(640)
Balance at End of Year	0	86	2,212
Allowance for sales returns
VALUATION AND QUALIFYING ACCOUNTS
Balance at Beginning of Year	10,146	12,321	14,438
Charged (Credited) to Statement of Operations	141,995	157,619	162,381
Claims and Adjustments Applied Against Allowances	(141,961)	(159,794)	(164,498)
Balance at End of Year	10,180	10,146	12,321
Allowance for cooperative marketing arrangements
VALUATION AND QUALIFYING ACCOUNTS
Balance at Beginning of Year	40,495	56,372	43,276
Charged (Credited) to Statement of Operations	232,837	262,363	286,116
Claims and Adjustments Applied Against Allowances	(231,698)	(278,240)	(273,020)
Balance at End of Year	41,634	40,495	56,372
Allowance for customer incentive programs
VALUATION AND QUALIFYING ACCOUNTS
Balance at Beginning of Year	71,645	97,460	76,200
Charged (Credited) to Statement of Operations	299,351	329,666	348,072
Claims and Adjustments Applied Against Allowances	(310,969)	(355,481)	(326,812)
Balance at End of Year	60,027	71,645	97,460
Allowance for pricing programs
VALUATION AND QUALIFYING ACCOUNTS
Balance at Beginning of Year	98,822	120,797	120,568
Charged (Credited) to Statement of Operations	707,954	784,835	885,228
Claims and Adjustments Applied Against Allowances	(715,496)	(806,810)	(884,999)
Balance at End of Year	91,280	98,822	120,797
Tax valuation allowance:
VALUATION AND QUALIFYING ACCOUNTS
Balance at Beginning of Year	30,766	29,858	28,926
Charged (Credited) to Statement of Operations	4,770	908	887
Claims and Adjustments Applied Against Allowances	0	0	45
Balance at End of Year	$ 35,536	$ 30,766	$ 29,858