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Employee Benefit Plan (Tables) - Non-U.S. Plan | 12 Months Ended
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Dec. 31, 2017
Employee Benefit Plan |
Schedule of net periodic pension cost |
|  | Year ended December 31,
|  | 2017 |  | 2016 |  | 2015
Service cost (gross) |  | $ | 1,397 |  | $ | 783 |  | $ | 601
Interest cost |  |  | 188 |  |  | 243 |  |  | 261
Expected return on plan assets |  |  | (199) |  |  | (157) |  |  | (162)
Amortization of unrecognized actuarial gain |  |  | 45 |  |  | — |  |  | —
Net periodic pension cost |  | $ | 1,431 |  | $ | 869 |  | $ | 700
Summary of net unfunded status of pension plans |
|  | As of December 31,
|  | 2017 |  | 2016
Fair value of plan assets |  | $ | 12,390 |  | $ | 11,024
Projected benefit obligation |  |  | (18,308) |  |  | (16,690)
Net unfunded benefit obligation |  | $ | (5,918) |  | $ | (5,666)
Schedule of change in the fair value of plan assets |
|  | Year ended December 31,
|  | 2017 |  | 2016
Fair value of plan assets at January 1 |  | $ | 11,024 |  | $ | 9,264
Employee contributions |  |  | 530 |  |  | 458
Actual return on plan assets |  |  | 91 |  |  | 63
Benefits (paid), net of transfers |  |  | (1,277) |  |  | 752
Employer contributions |  |  | 992 |  |  | 832
Foreign exchange adjustment |  |  | 1,030 |  |  | (345)
Fair value of plan assets at December 31 |  | $ | 12,390 |  | $ | 11,024
Schedule of change in benefit obligations |
|  | Year ended December 31,
|  | 2017 |  | 2016
Benefit obligations at January 1 |  | $ | 16,690 |  | $ | 12,674
Gross service cost |  |  | 1,397 |  |  | 783
Interest cost |  |  | 188 |  |  | 243
Employee contributions |  |  | 530 |  |  | 458
Actuarial losses |  |  | 30 |  |  | 2,296
Plan amendment |  |  | (356) |  |  | —
Benefits (paid), net of transfers |  |  | (1,277) |  |  | 752
Foreign exchange adjustment |  |  | 1,106 |  |  | (516)
Benefit obligations at December 31 |  | $ | 18,308 |  | $ | 16,690
Summary of weighted average assumptions |
|  | As of December 31, 2017
|  | 2017 |  | 2016
|  | (%)
Discount rates |  | 0.7 | - | 1.5 |  | 0.7 | - | 1.6
Inflation |  | 1.0 | - | 1.8 |  | 1.0 | - | 1.8
Expected return on plan assets |  | 1.3 | - | 2.0 |  | 1.3 | - | 2.0
Rate of salary increases |  | 2.0 | - | 2.8 |  | 2.0 | - | 2.8
Schedule of projected future pension benefits |
2018 |  | $ | 529
2019 |  |  | 460
2020 |  |  | 478
2021 |  |  | 742
2022 |  |  | 1,169
Beyond |  |  | 4,044

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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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