Cover	12 Months Ended
Cover	Dec. 31, 2022
Document Information [Line Items]
Document Type	DEF 14A
Amendment Flag	false
Entity Information [Line Items]
Entity Registrant Name	IRHYTHM TECHNOLOGIES, INC.
Entity Central Index Key	0001388658

Pay vs Performance Disclosure - USD ($)

4 Months Ended

5 Months Ended

12 Months Ended

15 Months Ended

102 Months Ended

Oct. 03, 2021

May 31, 2021

Dec. 31, 2022

Dec. 31, 2021

Dec. 31, 2020

Dec. 31, 2022

Jan. 11, 2021

Pay vs Performance Disclosure [Table]

Pay vs Performance [Table Text Block]


Year	Summary Compensation Table Total for Kevin King1 ($)	Summary Compensation Table Total for Michael Coyle2 ($)	Summary Compensation Table Total for Douglas Devine3,5 ($)	Summary Compensation Table Total for Quentin Blackford4 ($)	Compensation Actually Paid to Kevin King1,6 ($)	Compensation Actually Paid to Michael Coyle2,6 ($)	Compensation Actually Paid to Douglas Devine3,5,6 ($)	Compensation Actually Paid to Quentin Blackford4,6 ($)	Average Summary Compensation Table Total for Non-PEO NEOs5 ($)	Average Compensation Actually Paid to Non-PEO NEOs5,6 ($)
(a)	(b)	(b)	(b)	(b)	(c)	(c)	(c)	(c)	(d)	(e)
2022	—	—	—	7,259,859	—	—	—	4,565,129	4,422,956	4,044,855
2021	30,709	461,422	5,699,043	9,241,346	(9,810,498)	461,422	2,902,001	18,165,499	3,360,713	136,903
2020	4,885,062	—	—	—	24,257,924	—	—	—	1,769,376	6,988,690


Year	Value of Initial Fixed $100 Investment based on:7		Net Income ($ Millions)	Revenue8 ($ Millions)
	TSR ($)	Peer Group TSR ($)
(a)	(f)	(g)	(h)	(i)
2022	137.57	113.65	(116)	411
2021	172.84	126.45	(101)	323
2020	348.38	126.42	(44)	265

Company Selected Measure Name

revenue

Named Executive Officers, Footnote [Text Block]

Kevin King was our President and Chief Executive Officer from July 2012 through January 11, 2021.Michael Coyle was our President and Chief Executive Officer from January 12, 2021, through June 1, 2021.Douglas Devine was our Interim Chief Executive Officer from June 1, 2021, through October 3, 2021. Mr. Devine also served as our Chief Financial Officer from June 2020 until August 2022. In accordance with Item 402(v) of Regulation S-K, this table and the accompanying narrative present Mr. Devine as a PEO for 2021 and a Non-PEO NEO for 2020 and 2022. Quentin Blackford has been our President and Chief Executive Officer since October 4, 2021. The individuals comprising the Non-PEO NEOs for each year are listed below. As described above, this table and the accompanying narrative present Mr. Devine as a PEO for 2021 and a Non-PEO NEO for 2020 and 2022.

2020

2021

2022

Douglas Devine

Mark Day

Douglas Devine

Mark Day

Daniel Wilson

Brice Bobzien

Matthew Garrett

David Vort

Patrick Murphy

Daniel Wilson

Chad Patterson

David Vort

Minang Turakhia

Peer Group Issuers, Footnote [Text Block]

The Peer Group TSR set forth in this table utilizes the NASDAQ Biotechnology Index, which we also utilize in the stock performance graph required by Item 201(e) of Regulation S-K included in our Annual Report for the year ended December 31, 2022. The comparison assumes $100 was invested for the period starting December 31, 2019, through the end of the listed year in the Company and in the NASDAQ Biotechnology Index, respectively. Historical stock performance is not necessarily indicative of future stock performance.

Adjustment To PEO Compensation, Footnote [Text Block]

Compensation Actually Paid reflects the exclusions and inclusions of certain amounts for the PEOs and the Non-PEO NEOs as set forth below. Equity values are calculated in accordance with FASB ASC Topic 718. Amounts in the Exclusion of Stock Awards column are the totals from the Stock Awards column set forth in the Summary Compensation Table. With respect to Mr. Coyle’s 2021 compensation, no adjustments from the Summary Compensation Table total were needed to calculate his Compensation Actually Paid.


Year	Summary Compensation Table Total for Kevin King ($)	Exclusion of Stock Awards for Kevin King ($)	Inclusion of Equity Values for Kevin King ($)	Compensation Actually Paid to Kevin King ($)
2021	30,709	—	(9,841,207)	(9,810,498)
2020	4,885,062	(3,494,769)	22,867,631	24,257,924


Year	Summary Compensation Table Total for Douglas Devine ($)	Exclusion of Stock Awards for Douglas Devine ($)	Inclusion of Equity Values for Douglas Devine ($)	Compensation Actually Paid to Douglas Devine ($)
2021	5,699,043	(4,558,057)	1,761,015	2,902,001


Year	Summary Compensation Table Total for Quentin Blackford ($)	Exclusion of Stock Awards for Quentin Blackford ($)	Inclusion of Equity Values for Quentin Blackford ($)	Compensation Actually Paid to Quentin Blackford ($)
2022	7,259,859	(5,787,285)	3,092,554	4,565,129
2021	9,241,346	(9,078,651)	18,002,804	18,165,499

The amounts in the Inclusion of Equity Values in the tables above are derived from the amounts set forth in the following tables:


Year	Year-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year for Kevin King ($)	Change in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards for Kevin King ($)	Vesting-Date Fair Value of Equity Awards Granted During Year that Vested During Year for Kevin King ($)	Change in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year for Kevin King ($)	Fair Value at Last Day of Prior Year of Equity Awards Forfeited During Year for Kevin King ($)	Total - Inclusion of Equity Values for Kevin King ($)
2021	111,923	(3,142,539)	—	(2,200,824)	(4,609,767)	(9,841,207)
2020	12,029,686	10,488,005	—	349,940	—	22,867,631


Year	Year-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year for Douglas Devine ($)	Change in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards for Douglas Devine ($)	Vesting-Date Fair Value of Equity Awards Granted During Year that Vested During Year for Douglas Devine ($)	Change in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year for Douglas Devine ($)	Fair Value at Last Day of Prior Year of Equity Awards Forfeited During Year for Douglas Devine ($)	Total - Inclusion of Equity Values for Douglas Devine ($)
2021	4,097,025	(1,940,348)	—	(395,662)	—	1,761,015


Year	Year-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year for Quentin Blackford ($)	Change in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards for Quentin Blackford ($)	Vesting-Date Fair Value of Equity Awards Granted During Year that Vested During Year for Quentin Blackford ($)	Change in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year for Quentin Blackford ($)	Fair Value at Last Day of Prior Year of Equity Awards Forfeited During Year for Quentin Blackford ($)	Total - Inclusion of Equity Values for Quentin Blackford ($)
2022	6,700,517	(3,839,457)	—	231,494	—	3,092,554
2021	18,002,804	—	—	—	—	18,002,804

Non-PEO NEO Average Total Compensation Amount

$ 4,422,956

$ 3,360,713

$ 1,769,376

Non-PEO NEO Average Compensation Actually Paid Amount

$ 4,044,855

136,903

6,988,690

Adjustment to Non-PEO NEO Compensation Footnote [Text Block]


Year	Average Summary Compensation Table Total for Non-PEO NEOs ($)	Average Exclusion of Stock Awards for Non-PEO NEOs ($)	Average Inclusion of Equity Values for Non-PEO NEOs ($)	Average Compensation Actually Paid to Non-PEO NEOs ($)
2022	4,422,956	(3,698,489)	3,320,388	4,044,855
2021	3,360,713	(2,663,369)	(560,441)	136,903
2020	1,769,376	(1,326,682)	6,545,996	6,988,690


Year	Average Year-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year for Non-PEO NEOs ($)	Average Change in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards for Non-PEO NEOs ($)	Average Vesting-Date Fair Value of Equity Awards Granted During Year that Vested During Year for Non-PEO NEOs ($)	Average Change in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year for Non-PEO NEOs ($)	Average Fair Value at Last Day of Prior Year of Equity Awards Forfeited During Year for Non-PEO NEOs ($)	Total - Average Inclusion of Equity Values for Non-PEO NEOs ($)
2022	3,538,871	(224,870)	—	6,387	—	3,320,388
2021	1,886,257	(1,718,016)	—	(728,682)	—	(560,441)
2020	2,902,502	2,998,304	—	645,190	—	6,545,996

Compensation Actually Paid vs. Total Shareholder Return [Text Block]

Description of Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Company Total Shareholder Return (“TSR”)

The following chart sets forth the relationship between Compensation Actually Paid to our PEOs, the average of Compensation Actually Paid to our Non-PEO NEOs, and the Company’s cumulative TSR over the three most recently completed fiscal years.

PEO and Averange Non-PEO NEO Actually Paid vs TSR - jpg.jpg

Compensation Actually Paid vs. Net Income [Text Block]

Description of Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Net Income

The following chart sets forth the relationship between Compensation Actually Paid to our PEOs, the average of Compensation Actually Paid to our Non-PEO NEOs, and our net income during the three most recently completed fiscal years.

PEO and Averange Non-PEO NEO Actually Paid vs Net Income.jpg

Compensation Actually Paid vs. Company Selected Measure [Text Block]

Description of Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Revenue

The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and our revenue during the three most recently completed fiscal years.

PEO and Averange Non-PEO NEO Actually Paid vs Revenue - jpg.jpg

Total Shareholder Return Vs Peer Group [Text Block]

Description of Relationship Between Company TSR and Peer Group TSR

The following chart compares our cumulative TSR over the three most recently completed fiscal years to that of the NASDAQ Biotechnology Index over the same period.

Tabular List [Table Text Block]


Revenue
Adjusted EBITDA
Unit volume growth

Total Shareholder Return Amount

$ 137.57

172.84

348.38

Peer Group Total Shareholder Return Amount

113.65

126.45

126.42

Net Income (Loss)

$ (116,000,000)

$ (101,000,000)

$ (44,000,000)

Company Selected Measure Amount

411,000,000

323,000,000

265,000,000

PEO Name

Douglas Devine

Michael Coyle

Quentin Blackford

Kevin King

Additional 402(v) Disclosure [Text Block]

In accordance with rules adopted by the Securities and Exchange Commission pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, we provide the following disclosure regarding executive compensation for our principal executive officers (“PEOs”) and Non-PEO NEOs and Company performance for the fiscal years listed below. The Compensation Committee did not consider the pay versus performance disclosure below in making its pay decisions for any of the years shown. The amounts shown for Compensation Actually Paid have been calculated in accordance with Item 402(v) of Regulation S-K and do not reflect compensation actually earned, realized, or received by the Company’s NEOs; these amounts reflect the Summary Compensation Table total with certain adjustments as described in the following table and footnotes.We determined revenue to be the most important financial performance measure used to link Company performance to Compensation Actually Paid to our PEO and Non-PEO NEOs in 2022. This performance measure may not have been the most important financial performance measure for years 2021 and 2020 and we may determine a different financial performance measure to be the most important financial performance measure in future years.

Measure [Axis]: 1