Defined Severance Benefits (Tables)

12 Months Ended

Dec. 31, 2022

Retirement Benefits [Abstract]

Schedule of Defined Benefits Liabilities

Changes in defined severance benefits obligation were as follows:

(in thousands)	2022		2021
Beginning balance, January 1	$	283,032	$	164,573
Current service cost	143,354		120,784
Interest cost	8,169		2,869
Actuarial (gains) losses	(31,515)		52,528
Payments from plans	(81,097)		(49,712)
Plan changes	—		10,263
Cumulative effects of foreign currency translation	(17,471)		(18,273)
Ending balance, December 31	$	304,472	$	283,032
Current	$	78,365	$	76,368
Noncurrent	$	226,107	$	206,664

Schedule of Components of Net Periodic Costs

Net periodic cost consists of the following:

(in thousands)	2022		2021		2020
Current service costs	$	143,354	$	120,784	$	70,019
Interest cost	8,169		2,869		1,310
Amortization of:
Prior service cost	3,382		90		—
Net actuarial loss	6,319		4,471		140
Net periodic benefit cost	$	161,224	$	128,214	$	71,469

Schedule of Principal Actuarial Assumptions Used to Determine Defined Benefits Liabilities and Net Period Cost

The principal actuarial assumptions used to determine defined severance benefits obligation were as follows:

	December 31, 2022			December 31, 2021
Discount rates	5.10%	–	5.30%	2.70%	–	3.00%
Salary growth rates	5.00%	–	8.00%	5.00%	–	5.24%

The principal actuarial assumptions used to determine the net periodic cost were as follows:

	2022					2021					2020
Discount rates	2.70	%	–	3.00	%	1.73	%	–	2.57	%	1.74	%	–	2.45	%
Salary growth rates	5.00	%	–	5.24	%	1.48	%	–	5.00	%	1.51	%	–	5.00	%

Schedule of Expected Maturity Analysis of Undiscounted Defined Severance Benefits

The expected maturity analysis of undiscounted defined severance benefits as of December 31, 2022 was as follows:

(in thousands)	Less than 1 year		Between 1-2 years		Between 2-5 years		Over 5 years		Total
Defined severance benefits	$	83,830	$	86,054	$	218,475	$	319,927	$	708,286