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Employee Benefit Plan (Tables) - Non-U.S. Plan

12 Months Ended

Dec. 31, 2020

Employee Benefit Plan

Schedule of net periodic pension cost

​

​	​	​	​	​	​	​	​	​	​
​	​	Year ended December 31,
​		2020			2019			2018
​	​	​	​	​	​	​	​	​	​
Service cost (gross)	​	$	1,549	​	$	1,164	​	$	1,281
Interest cost	​	​	106	​	​	234	​	​	199
Expected return on plan assets	​	​	(271)	​	​	(242)	​	​	(327)
Amortization of unrecognized actuarial gain	​	​	(40)	​	​	(22)	​	​	18
Net periodic pension cost	​	$	1,344	​	$	1,134	​	$	1,171

Summary of net unfunded status of pension plans

​

​	​	​	​	​	​	​
​	​	As of December 31,
​		2020			2019
Fair value of plan assets	​	$	17,290	​	$	14,159
Projected benefit obligation	​	​	(27,431)	​	​	(21,759)
Net unfunded benefit obligation	​	$	(10,141)	​	$	(7,600)

Schedule of change in the fair value of plan assets

​

​	​	​	​	​	​	​
​	​	Year ended December 31,
​		2020			2019
​	​	​	​	​	​	​
Fair value of plan assets at January 1	​	$	14,159	​	$	12,823
Employee contributions	​	​	512	​	​	485
Actual return on plan assets	​	​	441	​	​	908
Benefits (paid), net of transfers	​	​	(251)	​	​	(977)
Employer contributions	​	​	1,088	​	​	977
Foreign exchange adjustment	​	​	1,341	​	​	(57)
Fair value of plan assets at December 31	​	$	17,290	​	$	14,159

Schedule of change in benefit obligations

​

​	​	​	​	​	​	​
​	​	Year ended December 31,
​		2020			2019
​	​	​	​	​	​	​
Benefit obligations at January 1	​	$	21,759	​	$	18,173
Gross service cost	​	​	1,549	​	​	1,164
Interest cost	​	​	106	​	​	234
Employee contributions	​	​	512	​	​	485
Actuarial (gains)/losses	​	​	1,694	​	​	2,763
Benefits (paid), net of transfers	​	​	(251)	​	​	(977)
Foreign exchange adjustment	​	​	2,062	​	​	(83)
Benefit obligations at December 31	​	$	27,431	​	$	21,759

Summary of weighted average assumptions

​

​	​	​	​	​	​	​	​	​
​	​	As of December 31,
​		2020				2019
​	​	(%)
Discount rates	​	0.05	-	0.60	​	0.15	-	0.70
Inflation	​	0.90	-	1.80	​	1.00	-	2.00
Expected return on plan assets	​	1.25	-	2.00	​	1.25	-	2.00
Rate of salary increases	​	1.90	-	2.80	​	2.00	-	2.80

Schedule of projected future pension benefits

​

​	​	​	​
2021		$	611
2022	​		860
2023	​		750
2024	​		631
2025	​		769
Beyond	​		5,135

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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.

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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.

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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.

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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.

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Tabular disclosure of net funded status of pension plans and/or other employee benefit plans.

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