XML 52 R37.htm IDEA: XBRL DOCUMENT
v3.20.4

Employee Benefit Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |
Summary of Stock Options Outstanding |
(in thousands, except per share amounts) | Number of Shares |  | Weighted-Average Exercise Price (per share)
Balance at December 31, 2019 | 1,888 |  |  | $ | 5.83 |
Exercised | (177) |  |  | 5.53 |
Canceled | (258) |  |  | 6.19 |
Balance at December 31, 2020 | 1,453 |  |  | $ | 5.80 |
Summary of Restricted Stock Units Outstanding |
(in thousands, except per share amounts) | Number of Shares |  | Weighted Average Grant-Date Fair Value Per Share
Balance at December 31, 2019 | 3,601 |  |  | $ | 5.18 |
Granted | 2,966 |  |  | 5.86
Vested | (2,869) |  |  | 5.39
Forfeited | (430) |  |  | 4.65
Balance at December 31, 2020 | 3,268 |  |  | $ | 5.67 |
Schedule of Defined Benefit Plans Disclosures | The Company’s pension obligations as of December 31, 2020 and December 31, 2019 and the changes to the Company’s pension obligations for each of those years were as follows:
| December 31,
(in thousands) | 2020 |  | 2019
Projected benefit obligation: |  |  |
Balance at January 1 | $ | 5,259 |  |  | $ | 4,881 |
Service cost | 252 |  |  | 227 |
Interest cost | 37 |  |  | 78 |
Actuarial losses | 159 |  |  | 206 |
Benefits paid | (173) |  |  | (31) |
Foreign currency translation adjustment | 523 |  |  | (102) |
Balance at December 31 | $ | 6,057 |  |  | $ | 5,259 |
Presented on the Consolidated Balance Sheets under: |  |  |
Current portion (presented under “Accrued and other current liabilities”) | $ | 47 |  |  | $ | 30 |
Long-term portion (presented under “Other non-current liabilities”) | $ | 6,010 |  |  | $ | 5,229 |
Components of Net Periodic Benefit Costs | The table below presents the components of net periodic benefit costs:
| Year ended December 31,
(in thousands) | 2020 |  | 2019
Service cost | $ | 252 |  |  | $ | 227 |
Interest cost | 37 |  |  | 78 |
Net periodic benefit cost included in operating loss | $ | 289 |  |  | $ | 305 |
Schedule of Pension Obligations Assumptions Used | The following assumptions were used in determining the Company’s pension obligation:
| December 31,
| 2020 |  | 2019
Discount rate | 0.4 | % |  | 0.7 | %
Mobility rate | 5.2 | % |  | 5.0 | %
Salary progression rate | 2.0 | % |  | 2.0 | %
Schedule of Expected Benefit Payments | As of December 31, 2020, future benefits expected to be paid in each of the next five years, and in the aggregate for the five-year period thereafter are as follows (in thousands):
Years ending December 31, |
2021 | $ | 46 |
2022 | — |
2023 | 341 |
2024 | 254 |
2025 | 480 |
2026 - 2030 | 3,465 |
Total | $ | 4,586 |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | The following table sets forth the detailed allocation of the share-based compensation expense which was included in the Company’s Consolidated Statements of Operations:
| Year ended December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
Share-based compensation expense included in: |  |  |  |  |
Cost of revenue | $ | 1,712 |  |  | $ | 1,124 |  |  | $ | 1,953 |
Research and development expense | 4,850 |  |  | 3,261 |  |  | 5,192 |
Selling, general and administrative expense | 11,478 |  |  | 7,689 |  |  | 10,144 |
Total | $ | 18,040 |  |  | $ | 12,074 |  |  | $ | 17,289 |
Share-based compensation expense by type of award: |  |  |  |  |
Stock options | — |  |  | 94 |  |  | 670 |
RSUs | 11,522 |  |  | 9,444 |  |  | 8,901 |
PRSUs | 4,022 |  |  | 924 |  |  | 6,075 |
MRSUs | 711 |  |  | 286 |  |  | 222 |
Employee stock purchase rights under ESPP | 1,785 |  |  | 1,326 |  |  | 1,421 |
Total | $ | 18,040 |  |  | $ | 12,074 |  |  | $ | 17,289 |
Valuation Assumptions for Stock Options | At the date of grant, the Company estimated the fair value of each stock purchase right granted under the ESPP using the following weighted average assumptions:
|  |  | December 31,
|  |  |  |  |  |  |  | 2020 |  | 2019 |  | 2018
Expected term (in years) |  |  |  |  |  |  |  | 0.50 |  | 0.50 |  | 0.50
Volatility |  |  |  |  |  |  |  | 56 | % |  | 38 | % |  | 55 | %
Risk-free interest rate |  |  |  |  |  |  |  | 0.9 | % |  | 2.3 | % |  | 1.9 | %
Expected dividends |  |  |  |  |  |  |  | 0.0 | % |  | 0.0 | % |  | 0.0 | %

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920 + Details
Name: | us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration