Postretirement Benefit Plans (Tables) - Korea Defined Benefit Plan

12 Months Ended

Dec. 31, 2018

Defined Benefit Plan Disclosure [Line Items]

Changes in projected benefit obligations, fair value of plan assets, and funded status of plan

The following table reflects changes in the defined benefit plan obligation for the period from acquisition to December 31, 2018 (in thousands):

	Year ended December 31,			April 29 through December 31,
	2018			2017
Change in benefit obligation:
Beginning benefit obligation	$	3,966		$	3,360
Service cost	590			361
Interest cost	110			55
Benefits paid	(503		)	(212		)
Actuarial loss	518			174
Effect of foreign currency translation	(172		)	228
Projected benefit obligation at end of year	4,509			3,966
Fair value of plan assets	20			24
Unfunded status at end of year	$	4,489		$	3,942

Amounts recognized in balance sheet

Amounts recognized in the consolidated balance sheets consist of (in thousands):

	As of December 31,
	2018		2017
Net defined benefit plan liability	$	4,489	$	3,942
Accumulated other comprehensive loss includes the following:
Actuarial loss before taxes	$	692	$	174

Net benefit cost and amounts recognized in other comprehensive income (loss)

	As of December 31,
	2018		2017
Net defined benefit plan liability	$	4,489	$	3,942
Accumulated other comprehensive loss includes the following:
Actuarial loss before taxes	$	692	$	174

The components of net periodic pension cost and other amounts recognized in other comprehensive income (loss) before taxes are as follows (in thousands):

	Year ended December 31,		April 29 through December 31,
	2018		2017
Components of net periodic defined benefit plan cost:
Service cost	$	590	$	361
Interest cost	110		55
Net periodic defined benefit plan cost	$	700	$	416
Other amounts recognized in other comprehensive income (loss) before income taxes are as follows:
Actuarial loss on benefit obligation	$	518	$	174
Total loss recognized in other comprehensive income (loss), before taxes	518		174
Total loss recognized in net periodic defined benefit plan cost and other comprehensive income (loss), before taxes	$	1,218	$	590

Assumptions used to determine the benefit obligation and net periodic benefit cost

Assumptions used to determine the benefit obligation and net periodic defined benefit plan cost are as follows:

	Year ended December 31,		April 29 through December 31,
	2018		2017
Discount rate	2.46	%	2.98	%
Rate of compensation increase	6.96	%	6.11	%

Expected benefit payments

The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid (in thousands):

2019	$	372
2020	364
2021	419
2022	331
2023	414
Years 2024 through 2028	1,293
Total	$	3,193