Debt (Details)		6 Months Ended
	Dec. 31, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 KRW (₩)	May 31, 2024 USD ($) borrowing	May 31, 2024 KRW (₩) borrowing	Mar. 31, 2022 USD ($)	Feb. 28, 2022 USD ($)	Apr. 30, 2021 KRW (₩) borrowing
Debt Instrument [Line Items]
Total debt	$ 1,209,785,000	$ 1,108,545,000
Less: Unamortized discount and deferred debt costs, net	(6,329,000)	(4,822,000)
Less: Short-term borrowings and current portion of long-term debt	(131,624,000)	(154,403,000)
Long-term debt	1,071,832,000	949,320,000
Collateralized debt		582,000,000
Asset Pledged as Collateral
Debt Instrument [Line Items]
Collateralized debt		312,100,000
Short-term term loans, variable rate | Japan | Subsidiary Term Loans
Debt Instrument [Line Items]
Total debt	5,098,000	1,579,000
Borrowing capacity available		$ 4,000,000
Short-term term loans, variable rate | Japan | Subsidiary Term Loans | Weighted Average
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)		0.38%	0.38%
Short-term term loans, variable rate | Japan | TIBOR | Subsidiary Term Loans | Minimum
Debt Instrument [Line Items]
Interest rate spread (as a percent)		0.18%
Short-term term loans, variable rate | Japan | TIBOR | Subsidiary Term Loans | Maximum
Debt Instrument [Line Items]
Interest rate spread (as a percent)		0.20%
Senior Notes | 6.625% Senior notes, due September 2027
Debt Instrument [Line Items]
Interest rate (as a percent)		6.625%	6.625%
Total debt	525,000,000	$ 525,000,000
Subsidiary Term Loans | Term loan, fixed rate at 3.95%, due May 2027 | Korea
Debt Instrument [Line Items]
Interest rate (as a percent)		3.95%	3.95%
Total debt	0	$ 0
Number of annual borrowings | borrowing				6	6			6
Borrowing capacity available		58,000,000	₩ 80,000,000,000
Proceeds from issuance of long-term debt		$ 58,700,000
Subsidiary Term Loans | Term loan, fixed rate at 2.12%, due December 2028 | Korea
Debt Instrument [Line Items]
Interest rate (as a percent)		2.12%	2.12%
Total debt	200,000,000	$ 200,000,000
Subsidiary Term Loans | Term loan, fixed rate at 1.35%, due December 2024 | Japan
Debt Instrument [Line Items]
Interest rate (as a percent)		1.35%	1.35%
Total debt	40,414,000	$ 17,715,000
Subsidiary Term Loans | Term loan, fixed rate at 1.20%, due December 2025 | Japan
Debt Instrument [Line Items]
Interest rate (as a percent)		1.20%	1.20%
Total debt	30,913,000	$ 20,326,000
Subsidiary Term Loans | Term loan, fixed rate at 1.23%, due December 2026 | Japan
Debt Instrument [Line Items]
Interest rate (as a percent)		1.23%	1.23%
Total debt	55,729,000	$ 40,714,000
Subsidiary Term Loans | Term loan, fixed rate at 1.59%, due December 2027 | Japan
Debt Instrument [Line Items]
Interest rate (as a percent)		1.59%	1.59%
Total debt	89,053,000	$ 68,312,000
Subsidiary Term Loans | Term loan, fixed rate at 1.80%, due December 2028 | Japan
Debt Instrument [Line Items]
Interest rate (as a percent)		1.80%	1.80%
Total debt	124,078,000	$ 97,899,000
Subsidiary Term Loans | Term loans, SOFR plus 0.75%, weighted average of 6.06% as of June 30, 2024, due June 2025 | China
Debt Instrument [Line Items]
Total debt	37,000,000	$ 36,000,000
Subsidiary Term Loans | Term loans, SOFR plus 0.75%, weighted average of 6.06% as of June 30, 2024, due June 2025 | China | SOFR
Debt Instrument [Line Items]
Interest rate spread (as a percent)		0.75%
Weighted average interest rate (as a percent)		6.06%	6.06%
Subsidiary Term Loans | Term loans, SOFR plus 0.75%, weighted average of 6.06% as of June 30, 2024, due 2025 | China
Debt Instrument [Line Items]
Total debt	57,500,000	$ 56,500,000
Subsidiary Term Loans | Term loans, SOFR plus 0.75%, weighted average of 6.06% as of June 30, 2024, due 2025 | China | SOFR
Debt Instrument [Line Items]
Interest rate spread (as a percent)		0.75%
Weighted average interest rate (as a percent)		6.06%	6.06%
Subsidiary Term Loans | Term loans, SOFR plus 0.95% December 2026 | China
Debt Instrument [Line Items]
Total debt	$ 45,000,000	$ 44,500,000
Subsidiary Term Loans | Term loans, SOFR plus 0.95% December 2026 | China | Weighted Average
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)		6.30%	6.30%
Subsidiary Term Loans | Term loans, SOFR plus 0.95% December 2026 | China | SOFR
Debt Instrument [Line Items]
Interest rate spread (as a percent)		0.95%
Subsidiary Term Loans | Term Loans, SOFR Plus 1.40%, Due December 2026 | China | SOFR
Debt Instrument [Line Items]
Interest rate spread (as a percent)	1.40%
Subsidiary Term Loans | Term Loan, fixed rate at 1.85%, Due April2024 | Korea
Debt Instrument [Line Items]
Interest rate (as a percent)		1.85%	1.85%
Face amount of debt | ₩								₩ 80,000,000,000
Borrowing capacity available				$ 59,000,000	₩ 80,000,000,000.0
Line of Credit | Credit facility, TAIFX plus the applicable bank rate, due December 2024 (Taiwan) | Revolving Credit Facility | Taiwan
Debt Instrument [Line Items]
Total debt	$ 0	$ 0
Borrowing capacity available		$ 15,000,000.0
Credit facility, borrowing capacity						$ 15,000,000	$ 36,000,000
Line of Credit | $600.0 million senior secured revolving credit facility, applicable bank rate plus 1.75%, due March 2027 (Singapore) | Revolving Credit Facility | Singapore
Debt Instrument [Line Items]
Interest rate (as a percent)		1.75%	1.75%
Total debt	$ 0	$ 0
Borrowing capacity available		$ 600,000,000
Credit facility, borrowing capacity						600,000,000
Credit facility, base amount						$ 250,000,000
Credit facility percentage of variable borrowings						37.50%