NOVOCURE LTD, 10-Q filed on 7/25/2019
Quarterly Report
v3.19.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2019
Jul. 18, 2019
Document Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Trading Symbol NVCR  
Entity Registrant Name Novocure Ltd  
Entity Central Index Key 0001645113  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Current Reporting Status Yes  
Entity Common Stock, Shares Outstanding   98,176,183
Entity File Number 001-37565  
Entity Tax Identification Number 981057807  
Entity Address, Address Line One No. 4 The Forum  
Entity Address, Address Line Two Grenville Street  
Entity Address, City or Town St. Helier  
Entity Address, State or Province Jersey  
Entity Address, Postal Zip Code JE2 4UF  
City Area Code 44 (0) 15  
Local Phone Number 3475 6700  
v3.19.2
CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
CURRENT ASSETS:    
Cash and cash equivalents $ 180,073 $ 140,622
Short-term investments 104,511 105,256
Restricted cash 2,110 2,134
Trade receivables 42,533 36,523
Receivables and prepaid expenses 15,302 14,279
Inventories 25,454 22,555
Total current assets 369,983 321,369
LONG-TERM ASSETS:    
Property and equipment, net 8,399 8,442
Field equipment, net 7,466 6,924
Right-of-use assets, net 14,659 0
Other long-term assets 5,682 3,058
Total long-term assets 36,206 18,424
TOTAL ASSETS 406,189 339,793
CURRENT LIABILITIES:    
Trade payables 30,069 26,708
Other payables, lease liabilities and accrued expenses 43,498 37,852
Total current liabilities 73,567 64,560
LONG-TERM LIABILITIES:    
Long-term loan, net of discount and issuance costs 149,344 149,268
Deferred revenue 8,874 9,929
Employee benefit liabilities 3,610 2,683
Long-term lease liabilities 11,582 0
Other long-term liabilities 306 1,094
Total long-term liabilities 173,716 162,974
TOTAL LIABILITIES 247,283 227,534
COMMITMENTS AND CONTINGENCIES 0 0
SHAREHOLDERS' EQUITY:    
Ordinary shares no par value, unlimited shares authorized; issued and outstanding: 97,858,876 shares and 93,254,185 shares at June 30, 2019 (unaudited) and December 31, 2018, respectively 0 0
Additional paid-in capital 818,338 757,314
Accumulated other comprehensive income (loss) (2,357) (1,400)
Retained earnings (accumulated deficit) (657,075) (643,655)
Total shareholders' equity 158,906 112,259
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 406,189 $ 339,793
v3.19.2
CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
 6 Months Ended 12 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Statement Of Financial Position [Abstract]    
Common stock, par value
Common stock, shares authorized Unlimited Unlimited
Common stock, shares issued 97,858,876 93,254,185
Common stock, shares outstanding 97,858,876 93,254,185
v3.19.2
CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Income Statement [Abstract]          
Net revenues $ 86,713 $ 61,514 $ 160,022 $ 113,639 $ 248,069
Cost of revenues 21,106 19,833 40,920 38,071 80,048
Gross profit 65,607 41,681 119,102 75,568 168,021
Operating costs and expenses:          
Research, development and clinical trials 19,454 11,362 36,496 22,466 50,574
Sales and marketing 23,708 19,196 46,041 37,331 77,663
General and administrative 21,249 18,208 41,487 35,533 73,456
Total operating costs and expenses 64,411 48,766 124,024 95,330 201,693
Operating income (loss) 1,196 (7,085) (4,922) (19,762) (33,672)
Financial expenses (income), net 1,239 2,860 3,610 7,713 12,270
Income (loss) before income taxes (43) (9,945) (8,532) (27,475) (45,942)
Income taxes 1,227 5,565 4,888 8,759 17,617
Net income (loss) $ (1,270) $ (15,510) $ (13,420) $ (36,234) $ (63,559)
Basic and diluted net income (loss) per ordinary share $ (0.01) $ (0.17) $ (0.14) $ (0.40) $ (0.69)
Weighted average number of ordinary shares used in computing basic and diluted net income (loss) per share 96,356,317 91,331,862 95,583,802 90,658,735 91,828,043
v3.19.2
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]          
Net income (loss) $ (1,270) $ (15,510) $ (13,420) $ (36,234) $ (63,559)
Other comprehensive income (loss), net of tax:          
Change in foreign currency translation adjustments 47 11 (214) 21 27
Pension benefit plan (662) 44 (743) 49 (84)
Total comprehensive income (loss) $ (1,885) $ (15,455) $ (14,377) $ (36,164) $ (63,616)
v3.19.2
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Ordinary Shares
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Retained Earnings (Accumulated Deficit)
Balance at Dec. 31, 2017 $ 113,564   $ 697,165 $ (1,343) $ (582,258)
Balance (in shares) at Dec. 31, 2017   89,478,032      
Share-based compensation to employees 8,520   8,520    
Exercise of options and warrants and vested RSUs 2,581   2,581    
Exercise of options and warrants and vested RSUs (in shares)   920,869      
Cumulative effect adjustment on retained earnings (*) [1] 2,162       2,162
Other comprehensive income (loss), net of tax benefit 15     15  
Net income (loss) (20,724)       (20,724)
Balance at Mar. 31, 2018 106,118   708,266 (1,328) (600,820)
Balance (in shares) at Mar. 31, 2018   90,398,901      
Balance at Dec. 31, 2017 113,564   697,165 (1,343) (582,258)
Balance (in shares) at Dec. 31, 2017   89,478,032      
Net income (loss) (36,234)        
Balance at Jun. 30, 2018 112,081   729,684 (1,273) (616,330)
Balance (in shares) at Jun. 30, 2018   92,503,273      
Balance at Dec. 31, 2017 113,564   697,165 (1,343) (582,258)
Balance (in shares) at Dec. 31, 2017   89,478,032      
Net income (loss) (63,559)        
Balance at Dec. 31, 2018 112,259   757,314 (1,400) (643,655)
Balance (in shares) at Dec. 31, 2018   93,254,185      
Balance at Mar. 31, 2018 106,118   708,266 (1,328) (600,820)
Balance (in shares) at Mar. 31, 2018   90,398,901      
Share-based compensation to employees 10,206   10,206    
Proceeds from issuance of shares 938   938    
Proceeds from issuance of shares (in shares)   54,386      
Exercise of options and warrants and vested RSUs 10,274   10,274    
Exercise of options and warrants and vested RSUs (in shares)   2,049,986      
Other comprehensive income (loss), net of tax benefit 55     55  
Net income (loss) (15,510)       (15,510)
Balance at Jun. 30, 2018 112,081   729,684 (1,273) (616,330)
Balance (in shares) at Jun. 30, 2018   92,503,273      
Balance at Dec. 31, 2018 112,259   757,314 (1,400) (643,655)
Balance (in shares) at Dec. 31, 2018   93,254,185      
Share-based compensation to employees 9,649   9,649    
Exercise of options and warrants and vested RSUs 16,978   16,978    
Exercise of options and warrants and vested RSUs (in shares)   2,438,612      
Other comprehensive income (loss), net of tax benefit (342)     (342)  
Net income (loss) (12,150)       (12,150)
Balance at Mar. 31, 2019 126,394   783,941 (1,742) (655,805)
Balance (in shares) at Mar. 31, 2019   95,692,797      
Balance at Dec. 31, 2018 112,259   757,314 (1,400) (643,655)
Balance (in shares) at Dec. 31, 2018   93,254,185      
Net income (loss) (13,420)        
Balance at Jun. 30, 2019 158,906   818,338 (2,357) (657,075)
Balance (in shares) at Jun. 30, 2019   97,858,876      
Balance at Mar. 31, 2019 126,394   783,941 (1,742) (655,805)
Balance (in shares) at Mar. 31, 2019   95,692,797      
Share-based compensation to employees 13,732   13,732    
Proceeds from issuance of shares 1,208   1,208    
Proceeds from issuance of shares (in shares)   43,421      
Exercise of options and warrants and vested RSUs 19,457   19,457    
Exercise of options and warrants and vested RSUs (in shares)   2,122,658      
Other comprehensive income (loss), net of tax benefit (615)     (615)  
Net income (loss) (1,270)       (1,270)
Balance at Jun. 30, 2019 $ 158,906   $ 818,338 $ (2,357) $ (657,075)
Balance (in shares) at Jun. 30, 2019   97,858,876      
[1] Resulting from the adoption of ASC 606.
v3.19.2
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2018
Mar. 31, 2018
Statement Of Stockholders Equity [Abstract]        
Other comprehensive income (loss), tax benefit $ 69 $ 11 $ 3 $ 5
v3.19.2
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Cash flows from operating activities:          
Net income (loss) $ (1,270) $ (15,510) $ (13,420) $ (36,234) $ (63,559)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:          
Depreciation and amortization 2,132 2,287 4,061 4,490 9,006
Asset write-downs and impairment of field equipment 86 93 161 142 407
Share-based compensation to employees 13,732 10,206 23,381 18,726 39,846
Decrease (increase) in trade receivables (3,313) (3,599) (6,010) (5,271) (4,151)
Amortization of discount (premium) (587) (370) (1,165) 2,057 1,022
Decrease (increase) in receivables and prepaid expenses (1,685) (1,277) (1,024) (3,111) (6,174)
Decrease (increase) in inventories (1,316) 482 (2,899) 2,120 (529)
Decrease (increase) in other long-term assets (632) (278) (2,531) (898) (949)
Decrease (increase) in right of use assets, net 800   2,613    
Increase (decrease) in trade payables 126 1,016 3,361 3,229 9,503
Increase (decrease) in other payables and accrued expenses 2,097 (528) 1,108 (8,828) 4,210
Increase (decrease) in employee benefit liabilities, net 50 1 93 77 133
Increase (decrease) in long-term lease liability (575)   (1,152)    
Increase (decrease) in other long-term liabilities (579) (16) (1,826) (816) 9,370
Net cash provided by (used in) operating activities 9,066 (7,493) 4,751 (24,317) (1,865)
Cash flows from investing activities:          
Purchase of property and equipment (892) (854) (1,752) (1,591) (2,916)
Purchase of field equipment (1,505) (604) (2,970) (1,974) (3,795)
Proceeds from maturity of short-term investments 105,000 60,000 210,661 105,000 255,000
Purchase of short-term investments (104,351) (59,384) (208,676) (104,134) (253,782)
Net cash provided by (used in) investing activities (1,748) (842) (2,737) (2,699) (5,493)
Cash flows from financing activities:          
Proceeds from issuance of shares, net 1,208 938 1,208 938 1,835
Proceeds from long-term loan, net       149,150 149,150
Repayment of long-term loan       (100,000) (100,000)
Repayment of other long-term loan (8) (24) (16) (41) (84)
Exercise of options and warrants 19,457 10,274 36,435 12,855 18,468
Net cash provided by (used in) financing activities 20,657 11,188 37,627 62,902 69,369
Effect of exchange rate changes on cash and cash equivalents 47 11 (214) 21 27
Increase (decrease) in cash, cash equivalents and restricted cash 28,022 2,864 39,427 35,907 62,038
Cash, cash equivalents and restricted cash at beginning of period 154,161 113,761 142,756 80,718 80,718
Cash, cash equivalents and restricted cash at the end of the period 182,183 116,625 182,183 116,625 142,756
Cash paid during the period for:          
Income taxes 4,358 8,256 7,391 12,014 20,350
Interest 3,415 $ 3,416 6,794 $ 6,425 $ 13,334
Non-cash activities upon implementation of ASC-842:          
Right of use assets obtained in exchange for lease obligations $ 1,539   $ 17,273    
v3.19.2
Organization and Basis of Presentation
 6 Months Ended
Jun. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]  
Organization and Basis of Presentation

 

NOTE 1: ORGANIZATION AND BASIS OF PRESENTATION

Organization. NovoCure Limited (including its consolidated subsidiaries, the “Company”) was incorporated in the Bailiwick of Jersey and is principally engaged in the development, manufacture and commercialization of Tumor Treating Fields delivery systems, including Optune and NovoTTF-100L, for the treatment of solid tumors. The Company has received regulatory approval from the U.S. Food and Drug Administration (“FDA”) under the Premarket Approval pathway and regulatory approvals and clearances in certain other countries for Optune to treat adult patients with GBM.  The Company also has received FDA approval under the Humanitarian Device Exemption pathway to market NovoTTF-100L for unresectable, locally advanced or metastatic MPM in combination with standard chemotherapies.

Financial statement preparation. The accompanying consolidated financial statements include the accounts of the Company and intercompany accounts and transactions have been eliminated. In the opinion of the Company’s management, the consolidated financial statements reflect all adjustments, which are normal and recurring in nature, necessary for fair financial statement presentation for the periods presented. The preparation of these consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. These consolidated financial statements and accompanying notes should be read in conjunction with the Company’s annual consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2018 (the “2018 10-K”) filed with the Securities and Exchange Commission on February 28, 2019.

The significant accounting policies applied in the audited annual consolidated financial statements of the Company as disclosed in the 2018 10-K are applied consistently in these unaudited interim consolidated financial statements, except as noted below:

Recently Adopted Accounting Pronouncements. In 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)", which amends the existing standards for lease accounting, requiring lessees to recognize most leases on their balance sheets. The new standard establishes a right-of-use model that requires a lessee to recognize a right-of-use asset and lease liability on the balance sheet for all leases with a term longer than 12 months. Leases will be classified as finance or operating. The standard is effective for interim and annual reporting periods beginning after December 15, 2018.

The provisions of ASU 2016-02 are to be applied using a modified retrospective approach. In July 2018, the FASB issued ASU No. 2018-11, "Targeted Improvements - Leases (Topic 842)." This update provides an additional (and optional) transition method to adopt the new leases standard. Under this method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, the prior comparative period’s financials will remain the same as those previously presented. The Company adopted the new standard as of January 1, 2019 and it has also elected to adopt the package of practical expedients permitted in ASC 842.

The amendments in ASU 2018-11 provide lessors with a practical expedient, by class of underlying asset, not to separate non-lease components from the associated lease component and, instead, to account for those components as a single component if the non-lease components otherwise would be accounted for under the new revenue guidance (Topic 606) and both of the following are met:

1. The timing and pattern of transfer of the non-lease component(s) and associated lease component are the same.

2. The lease component, if accounted for separately, would be classified as an operating lease.

As the non-lease component(s) associated with the lease component is the predominant component of the combined component, the Company accounts for the combined component in accordance with Topic 606.

The consolidated financial statements for the three and six months ended June 30, 2019 are presented under the new standard, while comparative year and other periods presented are not adjusted and continue to be reported in accordance with Topic 840, Leases.

v3.19.2
Cash, Cash Equivalents and Short-Term Investments
 6 Months Ended
Jun. 30, 2019
Cash Cash Equivalents And Short Term Investments [Abstract]  
Cash, Cash equivalents and Short-Term investments

NOTE 2: CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

Cash equivalents include items almost as liquid as cash, such as certificates of deposit and time deposits with maturity periods of three months or less when purchased.

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

Cash

 

$

8,896

 

 

$

9,197

 

Money market funds

 

 

171,177

 

 

 

131,425

 

Total cash and cash equivalents

 

$

180,073

 

 

$

140,622

 

 

The Company invests in marketable U.S. Treasury Bills (“T-bills”) that are classified as held-to-maturity securities. The amortized cost and recorded basis of the T-bills are presented as short-term investments.

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

Short-term investments

 

$

104,511

 

 

$

105,256

 

 

The estimated fair value of the Company’s short-term investments as of June 30, 2019 and December 31, 2018 was $104,564 and $105,266, respectively.

 

We use quoted market prices to determine the fair value of cash equivalents and short-term investments, therefore they are categorized as level 1.
v3.19.2
Inventories
 6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Inventories

NOTE 3: INVENTORIES

Inventories are stated at the lower of cost or net realizable value. The weighted average methodology is applied to determine cost. As of June 30, 2019 and December 31, 2018, the Company’s inventories were composed of:

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

Raw materials

 

$

3,431

 

 

$

870

 

Work in progress

 

 

9,116

 

 

 

8,667

 

Finished products

 

 

12,907

 

 

 

13,018

 

Total

 

$

25,454

 

 

$

22,555

 

 
v3.19.2
Commitments Rights of Use and Contingent Liabilities
 6 Months Ended
Jun. 30, 2019
Commitments And Contingencies Disclosure [Abstract]  
Commitments, Rights of Use and Contingent Liabilities

NOTE 4: COMMITMENTS, RIGHTS OF USE AND CONTINGENT LIABILITIES

Operating Leases and Rights of Use. The facilities of the Company are leased under various operating lease agreements for periods, including options for extensions, ending no later than 2029. The Company also leases motor vehicles under various operating leases, which expire on various dates, the latest of which is in 2022.

Under ASU No. 2016-02, “Leases (Topic 842), all leases with durations greater than 12 months, including non-cancelable operating leases, are now recognized on the balance sheet. The aggregated present value of lease agreements, net of deferred rent, are recorded as a long-term asset titled right-of-use assets. The corresponding lease liabilities are split between other payables within current liabilities and long-term lease liabilities within long-term liabilities. The lease liabilities are presented without consideration for deferred rent.

Upon implementation of ASC-842, effective January 1, 2019, the Company recorded an increase in right-of-use assets obtained in exchange for lease obligations of $15,733 on our opening balance sheet. Lease and rental payments for the six months ended June 30, 2019, totaled $2,374. Future minimum lease payments under non-cancelable operating leases as of June 30, 2019, are as follows:

 

 

 

June 30,

 

 

 

2019

 

 

 

Unaudited

 

Future minimum lease payments:

 

 

 

 

2019 (excluding the six months ended June 30, 2019)

 

$

2,265

 

2020

 

 

4,116

 

2021

 

 

3,826

 

2022

 

 

2,927

 

2023

 

 

1,899

 

Thereafter

 

 

3,695

 

Total future minimum lease payments

 

$

18,728

 

Less imputed interest

 

 

(3,198

)

Net present value of future minimum lease payments

 

$

15,530

 

 

 

 

 

 

Presented as of June 30, 2019:

 

 

 

 

Short-term lease liabilities

 

$

3,948

 

Long-term lease liabilities

 

 

11,582

 

Net present value of future minimum lease payments

 

$

15,530

 

 

 

 

 

 

Weighted average of remaining operating lease term

 

 

5.24

 

 

 

 

 

 

Weighted average of operating lease discount rate

 

 

7.44

%

 

The right-of-use assets are presented net of $684 in deferred rents.

Pledged deposits and bank guarantees. As of June 30, 2019 and December 31, 2018, the Company pledged bank deposits of $1,143 and $1,143, respectively, to cover bank guarantees in respect of its leases of operating facilities and obtained bank guarantees for the fulfillment of the Company’s lease and other contractual commitments of $1,307 and $1,299, respectively.
v3.19.2
Share Capital
 6 Months Ended
Jun. 30, 2019
Share Based Compensation Allocation And Classification In Financial Statements [Abstract]  
Share Capital

NOTE 5: SHARE CAPITAL

In September 2015, the Company adopted the 2015 Omnibus Incentive Plan (the “2015 Plan”). Under the 2015 Plan, the Company can issue various types of equity compensation awards such as share options, restricted shares, performance shares, restricted stock units (“RSUs”), performance units, long-term cash awards and other share-based awards.

Options granted under the 2015 Plan generally have a four-year vesting period and expire ten years after the date of grant. Options granted under the 2015 Plan that are cancelled or forfeited before expiration become available for future grants. RSUs granted under the 2015 Plan generally vest over a three-year period. RSUs granted under the 2015 Plan that are cancelled before expiration become available for future grants. As of June 30, 2019, 11,986,679 ordinary shares were available for grant under the 2015 Plan.

A summary of the status of the Company’s option plans as of June 30, 2019 and changes during the period then ended is presented below: 

 

 

 

Six months ended June 30, 2019

 

 

 

Unaudited

 

 

 

Number

of options

 

 

Weighted

average

exercise

price

 

Outstanding at beginning of year

 

 

14,438,215

 

 

$

13.56

 

Granted

 

 

1,411,781

 

 

 

47.40

 

Exercised

 

 

(3,837,716

)

 

 

9.91

 

Forfeited and cancelled

 

 

(86,223

)

 

 

16.87

 

Outstanding as of June 30, 2019

 

 

11,926,057

 

 

$

18.72

 

 

 

 

 

 

 

 

 

 

Exercisable options

 

 

4,348,026

 

 

$

13.82

 

 

 

 

 

 

 

 

 

 

For the six months, ended June 30, 2019, options to purchase 3,837,716 ordinary shares were exercised, resulting in the issuance of 3,837,716 ordinary shares.

A summary of the status of the Company’s RSUs as of June 30, 2019 and changes during the period then ended is presented below: 

 

 

 

Six months ended June 30, 2019

 

 

 

Unaudited

 

 

 

Number

of RSUs

 

 

Weighted

average

grant date fair value

price

 

Unvested at beginning of year

 

 

1,613,197

 

 

$

14.04

 

Granted

 

 

540,294

 

 

 

47.26

 

Vested

 

 

(723,554

)

 

 

12.99

 

Forfeited and cancelled

 

 

(9,427

)

 

 

29.18

 

Unvested as of June 30, 2019

 

 

1,420,510

 

 

$

27.11

 

 

In September 2015, the Company adopted an employee share purchase plan (“ESPP”) to encourage and enable eligible employees to acquire ownership of the Company’s ordinary shares purchased through accumulated payroll deductions on an after-tax basis. In the United States, the ESPP is intended to be an “employee stock purchase plan” within the meaning of Section 423 of the Internal Revenue Code and the provisions of the ESPP will be construed in a manner consistent with the requirements of such section. The Company began its offerings under the ESPP on August 1, 2016. As of June 30, 2019, 3,078,989 ordinary shares were available to be purchased by eligible employees under the ESPP and 390,614 shares had been issued under the ESPP.

The fair value of share-based awards was estimated using the Black-Scholes model for all equity grants. For market condition awards, the Company also applied the Monte-Carlo simulation model, with the following underlying assumptions: 

 

 

 

 

Six months ended June 30,

 

Year ended

December 31,

 

 

 

2019

 

2018

 

2018

 

 

 

Unaudited

 

Audited

Stock Option Plans

 

 

 

 

 

 

 

Expected term (years)

 

 

5.50-6.50

 

5.50-6.25

 

5.50-6.25

Expected volatility

 

 

55%-57%

 

52%-55%

 

52%-55%

Risk-free interest rate

 

 

2.21%-2.40%

 

2.70%-2.89%

 

2.70%-2.99%

Dividend yield

 

 

0.00%

 

0.00%

 

0.00%

ESPP

 

 

 

 

 

 

 

Expected term (years)

 

 

0.50

 

0.50

 

0.50

Expected volatility

 

 

62%

 

53%

 

45%-53%

Risk-free interest rate

 

 

2.51%

 

1.61%

 

1.61%-2.14%

Dividend yield

 

 

0.00%

 

0.00%

 

0.00%

 

The total non-cash share-based compensation expense related to all of the Company’s equity-based awards recognized for the three and six months ended June 30, 2019 and 2018 and the year ended December 31, 2018 was:

 

 

 

Three months ended June 30,

 

 

Six months ended June 30,

 

 

Year ended

December 31,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

 

2018

 

 

 

Unaudited

 

 

Unaudited

 

 

Audited

 

Cost of revenues

 

$

595

 

 

$

263

 

 

$

1,021

 

 

$

428

 

 

$

1,261

 

Research, development and clinical trials

 

 

1,813

 

 

 

1,286

 

 

 

3,001

 

 

 

2,192

 

 

 

4,709

 

Sales and marketing

 

 

3,255

 

 

 

1,893

 

 

 

5,217

 

 

 

3,329

 

 

 

7,393

 

General and administrative

 

 

8,069

 

 

 

6,764

 

 

 

14,142

 

 

 

12,777

 

 

 

26,483

 

Total share-based compensation expense

 

$

13,732

 

 

$

10,206

 

 

$

23,381

 

 

$

18,726

 

 

$

39,846

 
v3.19.2
Supplemental Information
 6 Months Ended
Jun. 30, 2019
Geographic Areas Long Lived Assets [Abstract]  
Supplemental Information

NOTE 6: SUPPLEMENTAL INFORMATION

The Company operates in a single reportable segment.

The following table presents long-lived assets by location:

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

United States

 

$

8,152

 

 

$

8,289

 

Switzerland

 

 

2,852

 

 

 

2,513

 

Israel

 

 

2,473

 

 

 

2,236

 

Germany

 

 

871

 

 

 

1,054

 

Others

 

 

1,517

 

 

 

1,274

 

Total

 

$

15,865

 

 

$

15,366

 

 

The Company’s revenues by geographic region, based on the customer’s location, are summarized as follows:

 

 

 

Three months ended June 30,

 

 

Six months ended June 30,

 

 

Year ended

December 31,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

 

2018

 

 

 

Unaudited

 

 

Unaudited

 

 

Audited

 

United States

 

$

58,934

 

 

$

41,935

 

 

$

105,538

 

 

$

79,738

 

 

$

168,414

 

EMEA (*)

 

 

22,505

 

 

 

18,522

 

 

 

45,025

 

 

 

32,396

 

 

 

72,485

 

Japan

 

 

4,185

 

 

 

1,057

 

 

 

7,555

 

 

 

1,505

 

 

 

6,351

 

Greater China (1)

 

 

1,089

 

 

 

-

 

 

 

1,904

 

 

 

-

 

 

 

819

 

Total

 

$

86,713

 

 

$

61,514

 

 

$

160,022

 

 

$

113,639

 

 

$

248,069

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(*) including Germany

 

$

22,139

 

 

$

17,651

 

 

$

42,377

 

 

$

31,009

 

 

$

67,849

 

 

(1)

Reflects revenue recognized in accordance with a License and Collaboration Agreement between us and Zai Lab (Shanghai) Co., Ltd. (“Zai”), dated September 10, 2018, pursuant to which Zai is commercializing Optune in China, Hong Kong, Macau and Taiwan (referred to in this table as “Greater China”). For additional information, see Note 12 to the Consolidated Financial Statements in our 2018 10-K.
v3.19.2
Organization and Basis of Presentation (Policies)
 6 Months Ended
Jun. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]  
Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements. In 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)", which amends the existing standards for lease accounting, requiring lessees to recognize most leases on their balance sheets. The new standard establishes a right-of-use model that requires a lessee to recognize a right-of-use asset and lease liability on the balance sheet for all leases with a term longer than 12 months. Leases will be classified as finance or operating. The standard is effective for interim and annual reporting periods beginning after December 15, 2018.

The provisions of ASU 2016-02 are to be applied using a modified retrospective approach. In July 2018, the FASB issued ASU No. 2018-11, "Targeted Improvements - Leases (Topic 842)." This update provides an additional (and optional) transition method to adopt the new leases standard. Under this method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, the prior comparative period’s financials will remain the same as those previously presented. The Company adopted the new standard as of January 1, 2019 and it has also elected to adopt the package of practical expedients permitted in ASC 842.

The amendments in ASU 2018-11 provide lessors with a practical expedient, by class of underlying asset, not to separate non-lease components from the associated lease component and, instead, to account for those components as a single component if the non-lease components otherwise would be accounted for under the new revenue guidance (Topic 606) and both of the following are met:

1. The timing and pattern of transfer of the non-lease component(s) and associated lease component are the same.

2. The lease component, if accounted for separately, would be classified as an operating lease.

As the non-lease component(s) associated with the lease component is the predominant component of the combined component, the Company accounts for the combined component in accordance with Topic 606.

The consolidated financial statements for the three and six months ended June 30, 2019 are presented under the new standard, while comparative year and other periods presented are not adjusted and continue to be reported in accordance with Topic 840, Leases.

v3.19.2
Cash, Cash Equivalents and Short-Term Investments (Tables)
 6 Months Ended
Jun. 30, 2019
Cash Cash Equivalents And Short Term Investments [Abstract]  
Summary of Cash and Cash Equivalents

Cash equivalents include items almost as liquid as cash, such as certificates of deposit and time deposits with maturity periods of three months or less when purchased.

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

Cash

 

$

8,896

 

 

$

9,197

 

Money market funds

 

 

171,177

 

 

 

131,425

 

Total cash and cash equivalents

 

$

180,073

 

 

$

140,622

 
Summary of Amortized Cost and Recorded Basis of T-bills in Short-Term Investments

The Company invests in marketable U.S. Treasury Bills (“T-bills”) that are classified as held-to-maturity securities. The amortized cost and recorded basis of the T-bills are presented as short-term investments.

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

Short-term investments

 

$

104,511

 

 

$

105,256

 
v3.19.2
Inventories (Tables)
 6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories are stated at the lower of cost or net realizable value. The weighted average methodology is applied to determine cost. As of June 30, 2019 and December 31, 2018, the Company’s inventories were composed of:

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

Raw materials

 

$

3,431

 

 

$

870

 

Work in progress

 

 

9,116

 

 

 

8,667

 

Finished products

 

 

12,907

 

 

 

13,018

 

Total

 

$

25,454

 

 

$

22,555

 

 
v3.19.2
Commitments Rights of Use and Contingent Liabilities (Tables)
 6 Months Ended
Jun. 30, 2019
Commitments And Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Lease Payments under Non-Cancelable Operating Lease Future minimum lease payments under non-cancelable operating leases as of June 30, 2019, are as follows:

 

 

 

June 30,

 

 

 

2019

 

 

 

Unaudited

 

Future minimum lease payments:

 

 

 

 

2019 (excluding the six months ended June 30, 2019)

 

$

2,265

 

2020

 

 

4,116

 

2021

 

 

3,826

 

2022

 

 

2,927

 

2023

 

 

1,899

 

Thereafter

 

 

3,695

 

Total future minimum lease payments

 

$

18,728

 

Less imputed interest

 

 

(3,198

)

Net present value of future minimum lease payments

 

$

15,530

 

 

 

 

 

 

Presented as of June 30, 2019:

 

 

 

 

Short-term lease liabilities

 

$

3,948

 

Long-term lease liabilities

 

 

11,582

 

Net present value of future minimum lease payments

 

$

15,530

 

 

 

 

 

 

Weighted average of remaining operating lease term

 

 

5.24

 

 

 

 

 

 

Weighted average of operating lease discount rate

 

 

7.44

%

 
v3.19.2
Share Capital (Tables)
 6 Months Ended
Jun. 30, 2019
Share Based Compensation Allocation And Classification In Financial Statements [Abstract]  
Schedule of Stock Option Plans

A summary of the status of the Company’s option plans as of June 30, 2019 and changes during the period then ended is presented below: 

 

 

 

Six months ended June 30, 2019

 

 

 

Unaudited

 

 

 

Number

of options

 

 

Weighted

average

exercise

price

 

Outstanding at beginning of year

 

 

14,438,215

 

 

$

13.56

 

Granted

 

 

1,411,781

 

 

 

47.40

 

Exercised

 

 

(3,837,716

)

 

 

9.91

 

Forfeited and cancelled

 

 

(86,223

)

 

 

16.87

 

Outstanding as of June 30, 2019

 

 

11,926,057

 

 

$

18.72

 

 

 

 

 

 

 

 

 

 

Exercisable options

 

 

4,348,026

 

 

$

13.82

 

 

 

 

 

 

 

 

 

 
Schedule of RSU's

A summary of the status of the Company’s RSUs as of June 30, 2019 and changes during the period then ended is presented below: 

 

 

 

Six months ended June 30, 2019

 

 

 

Unaudited

 

 

 

Number

of RSUs

 

 

Weighted

average

grant date fair value

price

 

Unvested at beginning of year

 

 

1,613,197

 

 

$

14.04

 

Granted

 

 

540,294

 

 

 

47.26

 

Vested

 

 

(723,554

)

 

 

12.99

 

Forfeited and cancelled

 

 

(9,427

)

 

 

29.18

 

Unvested as of June 30, 2019

 

 

1,420,510

 

 

$

27.11

 
Schedule of Fair Value Assumptions Used for All Equity Based Awards Estimated Using Black-Scholes Option Pricing Model

The fair value of share-based awards was estimated using the Black-Scholes model for all equity grants. For market condition awards, the Company also applied the Monte-Carlo simulation model, with the following underlying assumptions: 

 

 

 

 

Six months ended June 30,

 

Year ended

December 31,

 

 

 

2019

 

2018

 

2018

 

 

 

Unaudited

 

Audited

Stock Option Plans

 

 

 

 

 

 

 

Expected term (years)

 

 

5.50-6.50

 

5.50-6.25

 

5.50-6.25

Expected volatility

 

 

55%-57%

 

52%-55%

 

52%-55%

Risk-free interest rate

 

 

2.21%-2.40%

 

2.70%-2.89%

 

2.70%-2.99%

Dividend yield

 

 

0.00%

 

0.00%

 

0.00%

ESPP

 

 

 

 

 

 

 

Expected term (years)

 

 

0.50

 

0.50

 

0.50

Expected volatility

 

 

62%

 

53%

 

45%-53%

Risk-free interest rate

 

 

2.51%

 

1.61%

 

1.61%-2.14%

Dividend yield

 

 

0.00%

 

0.00%

 

0.00%
Schedule of Non-cash Share-based Compensation Expense Related to Company's Equity-Based Awards

The total non-cash share-based compensation expense related to all of the Company’s equity-based awards recognized for the three and six months ended June 30, 2019 and 2018 and the year ended December 31, 2018 was:

 

 

 

Three months ended June 30,

 

 

Six months ended June 30,

 

 

Year ended

December 31,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

 

2018

 

 

 

Unaudited

 

 

Unaudited

 

 

Audited

 

Cost of revenues

 

$

595

 

 

$

263

 

 

$

1,021

 

 

$

428

 

 

$

1,261

 

Research, development and clinical trials

 

 

1,813

 

 

 

1,286

 

 

 

3,001

 

 

 

2,192

 

 

 

4,709

 

Sales and marketing

 

 

3,255

 

 

 

1,893

 

 

 

5,217

 

 

 

3,329

 

 

 

7,393

 

General and administrative

 

 

8,069

 

 

 

6,764

 

 

 

14,142

 

 

 

12,777

 

 

 

26,483

 

Total share-based compensation expense

 

$

13,732

 

 

$

10,206

 

 

$

23,381

 

 

$

18,726

 

 

$

39,846

 
v3.19.2
Supplemental Information (Tables)
 6 Months Ended
Jun. 30, 2019
Geographic Areas Long Lived Assets [Abstract]  
Schedule of Long-Lived Assets by Location

The following table presents long-lived assets by location:

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

 

 

Unaudited

 

 

Audited

 

United States

 

$

8,152

 

 

$

8,289

 

Switzerland

 

 

2,852

 

 

 

2,513

 

Israel

 

 

2,473

 

 

 

2,236

 

Germany

 

 

871

 

 

 

1,054

 

Others

 

 

1,517

 

 

 

1,274

 

Total

 

$

15,865

 

 

$

15,366

 
Schedule of Revenues by Geographic Region

The Company’s revenues by geographic region, based on the customer’s location, are summarized as follows:

 

 

 

Three months ended June 30,

 

 

Six months ended June 30,

 

 

Year ended

December 31,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

 

2018

 

 

 

Unaudited

 

 

Unaudited

 

 

Audited

 

United States

 

$

58,934

 

 

$

41,935

 

 

$

105,538

 

 

$

79,738

 

 

$

168,414

 

EMEA (*)

 

 

22,505

 

 

 

18,522

 

 

 

45,025

 

 

 

32,396

 

 

 

72,485

 

Japan

 

 

4,185

 

 

 

1,057

 

 

 

7,555

 

 

 

1,505

 

 

 

6,351

 

Greater China (1)

 

 

1,089

 

 

 

-

 

 

 

1,904

 

 

 

-

 

 

 

819

 

Total

 

$

86,713

 

 

$

61,514

 

 

$

160,022

 

 

$

113,639

 

 

$

248,069

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(*) including Germany

 

$

22,139

 

 

$

17,651

 

 

$

42,377

 

 

$

31,009

 

 

$

67,849

 

 

(1)

Reflects revenue recognized in accordance with a License and Collaboration Agreement between us and Zai Lab (Shanghai) Co., Ltd. (“Zai”), dated September 10, 2018, pursuant to which Zai is commercializing Optune in China, Hong Kong, Macau and Taiwan (referred to in this table as “Greater China”). For additional information, see Note 12 to the Consolidated Financial Statements in our 2018 10-K.
v3.19.2
Cash, Cash Equivalents and Short-Term Investments - Summary of Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Cash And Cash Equivalents [Abstract]    
Cash $ 8,896 $ 9,197
Money market funds 171,177 131,425
Total cash and cash equivalents $ 180,073 $ 140,622
v3.19.2
Cash, Cash Equivalents and Short-Term Investments - Summary of Amortized Cost And Recorded Basis of T-bills in Short Term Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Investments Debt And Equity Securities [Abstract]    
Short-term investments $ 104,511 $ 105,256
v3.19.2
Cash, Cash Equivalents and Short-Term Investments - Additional Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Investments Debt And Equity Securities [Abstract]    
Estimated fair value of short-term investments $ 104,564 $ 105,266
v3.19.2
Inventories - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 3,431 $ 870
Work in progress 9,116 8,667
Finished products 12,907 13,018
Total $ 25,454 $ 22,555
v3.19.2
Commitments, Rights of Use and Contingent Liabilities - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jan. 01, 2019
Jun. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Loss Contingencies [Line Items]        
Operating lease expiration description     The facilities of the Company are leased under various operating lease agreements for periods, including options for extensions, ending no later than 2029.  
Operating lease, extistence of option to extend     true  
Increase in right-of-use assets obtained in exchange for lease obligations $ 15,733 $ 1,539 $ 17,273  
Lease and rental payments     2,374  
Deferred rent   684 684  
Pledged bank deposits   1,143 1,143 $ 1,143
Operating lease and other contractual commitments   $ 1,307 $ 1,307 $ 1,299
Motor Vehicles        
Loss Contingencies [Line Items]        
Operating lease expiration description     The Company also leases motor vehicles under various operating leases, which expire on various dates, the latest of which is in 2022.  
Maximum        
Loss Contingencies [Line Items]        
Operating lease agreements, expiration year     2029  
Maximum | Motor Vehicles        
Loss Contingencies [Line Items]        
Operating lease agreements, expiration year     2022  
v3.19.2
Commitments, Rights of Use and Contingent Liabilities - Schedule of Future Minimum Lease Payments under Non-Cancelable Operating Lease (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Future minimum lease payments:    
2019 (excluding the six months ended June 30, 2019) $ 2,265  
2020 4,116  
2021 3,826  
2022 2,927  
2023 1,899  
Thereafter 3,695  
Total future minimum lease payments 18,728  
Less imputed interest (3,198)  
Net present value of future minimum lease payments 15,530  
Short-term lease liabilities 3,948  
Long-term lease liabilities 11,582 $ 0
Net present value of future minimum lease payments $ 15,530  
Weighted average of remaining operating lease term 5 years 2 months 26 days  
Weighted average of operating lease discount rate 7.44%  
v3.19.2
Share Capital - Additional Information (Details)
 6 Months Ended
Jun. 30, 2019
shares
Share Capital [Line Items]  
Options exercised 3,837,716
Ordinary shares issued upon option exercise 3,837,716
ESPP  
Share Capital [Line Items]  
Ordinary shares available for grants 3,078,989
Shares issued under plan 390,614
2015 Plan  
Share Capital [Line Items]  
Ordinary shares available for grants 11,986,679
2015 Plan | Option  
Share Capital [Line Items]  
Stock awards granted, vesting period 4 years
Stock awards granted, expiration period 10 years
2015 Plan | RSUs  
Share Capital [Line Items]  
Stock awards granted, vesting period 3 years
v3.19.2
Share Capital - Schedule of Stock Option Plan (Details)
 6 Months Ended
Jun. 30, 2019
$ / shares
shares
Number of options  
Number of options, Outstanding at beginning of year | shares 14,438,215
Number of options, Granted | shares 1,411,781
Number of options, Exercised | shares (3,837,716)
Number of options, Forfeited and cancelled | shares (86,223)
Number of options, Outstanding at ending of year | shares 11,926,057
Number of options, Exercisable options | shares 4,348,026
Weighted average exercise price  
Weighted average exercise price, Outstanding at beginning of year | $ / shares $ 13.56
Weighted average exercise price, Granted | $ / shares 47.40
Weighted average exercise price, Exercised | $ / shares 9.91
Weighted average exercise price, Forfeited and cancelled | $ / shares 16.87
Weighted average exercise price, Outstanding at end of year | $ / shares 18.72
Weighted average exercise price, Exercisable options | $ / shares $ 13.82
v3.19.2
Share Capital - Schedule of RSU's (Details) - RSUs
 6 Months Ended
Jun. 30, 2019
$ / shares
shares
Number of RSUs  
Number of RSUs, unvested at beginning of year | shares 1,613,197
Number of RSUs, granted | shares 540,294
Number of RSUs, vested | shares (723,554)
Number of RSUs, forfeited and cancelled | shares (9,427)
Number of RSUs, unvested at ending of year | shares 1,420,510
Weighted average grant date fair value price  
Weighted average grant date fair value price, unvested at beginning of year | $ / shares $ 14.04
Weighted average grant date fair value price, granted | $ / shares 47.26
Weighted average grant date fair value price, vested | $ / shares 12.99
Weighted average grant date fair value price, forfeited and cancelled | $ / shares 29.18
Weighted average grant date fair value price, unvested at ending of year | $ / shares $ 27.11
v3.19.2
Share Capital - Schedule of Fair Value Assumptions Used Only for Equity Based Awards Estimated Using Black-Scholes Option Pricing Model (Details)
 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Stock Option Plans      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected volatility, minimum 55.00% 52.00% 52.00%
Expected volatility, maximum 57.00% 55.00% 55.00%
Risk-free interest rate, minimum 2.21% 2.70% 2.70%
Risk-free interest rate, maximum 2.40% 2.89% 2.99%
Dividend yield 0.00% 0.00% 0.00%
Stock Option Plans | Minimum      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (years) 5 years 6 months 5 years 6 months 5 years 6 months
Stock Option Plans | Maximum      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (years) 6 years 6 months 6 years 3 months 6 years 3 months
ESPP      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (years) 6 months 6 months 6 months
Expected volatility 62.00% 53.00%  
Expected volatility, minimum     45.00%
Expected volatility, maximum     53.00%
Risk-free interest rate 2.51% 1.61%  
Risk-free interest rate, minimum     1.61%
Risk-free interest rate, maximum     2.14%
Dividend yield 0.00% 0.00% 0.00%
v3.19.2
Share Capital - Schedule of Non-cash Share-Based Compensation Expenses Related to Company's Equity-Based Awards (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Total share-based compensation expense $ 13,732 $ 10,206 $ 23,381 $ 18,726 $ 39,846
Cost of Revenues          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Total share-based compensation expense 595 263 1,021 428 1,261
Research, Development and Clinical Trials          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Total share-based compensation expense 1,813 1,286 3,001 2,192 4,709
Sales and Marketing          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Total share-based compensation expense 3,255 1,893 5,217 3,329 7,393
General and Administrative          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Total share-based compensation expense $ 8,069 $ 6,764 $ 14,142 $ 12,777 $ 26,483
v3.19.2
Supplemental Information - Schedule of Long-Lived Assets by Location (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Revenues From External Customers And Long Lived Assets [Line Items]    
Long-lived assets $ 15,865 $ 15,366
United States    
Revenues From External Customers And Long Lived Assets [Line Items]    
Long-lived assets 8,152 8,289
Switzerland    
Revenues From External Customers And Long Lived Assets [Line Items]    
Long-lived assets 2,852 2,513
Israel    
Revenues From External Customers And Long Lived Assets [Line Items]    
Long-lived assets 2,473 2,236
Germany    
Revenues From External Customers And Long Lived Assets [Line Items]    
Long-lived assets 871 1,054
Others    
Revenues From External Customers And Long Lived Assets [Line Items]    
Long-lived assets $ 1,517 $ 1,274
v3.19.2
Supplemental Information - Schedule of Revenues by Geographic Region (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Revenues From External Customers And Long Lived Assets [Line Items]          
Net revenues $ 86,713 $ 61,514 $ 160,022 $ 113,639 $ 248,069
United States          
Revenues From External Customers And Long Lived Assets [Line Items]          
Net revenues 58,934 41,935 105,538 79,738 168,414
EMEA          
Revenues From External Customers And Long Lived Assets [Line Items]          
Net revenues 22,505 18,522 45,025 32,396 72,485
Japan          
Revenues From External Customers And Long Lived Assets [Line Items]          
Net revenues 4,185 $ 1,057 7,555 $ 1,505 6,351
Greater China          
Revenues From External Customers And Long Lived Assets [Line Items]          
Net revenues $ 1,089   $ 1,904   $ 819
v3.19.2
Supplemental Information - Schedule of Revenues by Geographic Region (Parenthetical) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Revenues From External Customers And Long Lived Assets [Line Items]          
Net revenues $ 86,713 $ 61,514 $ 160,022 $ 113,639 $ 248,069
Germany          
Revenues From External Customers And Long Lived Assets [Line Items]          
Net revenues $ 22,139 $ 17,651 $ 42,377 $ 31,009 $ 67,849