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v3.23.3

Debt (Details) | 1 Months Ended | 4 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 | Sep. 30, 2023 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 KRW (₩) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 | Mar. 31, 2022 USD ($) | Feb. 28, 2022 USD ($) | Apr. 30, 2021 KRW (₩) borrowing
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  | $ 1,102,460,000 | $ 1,102,460,000 |  | $ 1,239,772,000 |  |  |  |
Less: Unamortized discount and deferred debt costs, net |  | (5,343,000) | (5,343,000) |  | (7,438,000) |  |  |  |
Less: Short-term borrowings and current portion of long-term debt |  | (149,890,000) | (149,890,000) |  | (143,813,000) |  |  |  |
Long-term debt |  | 947,227,000 | 947,227,000 |  | 1,088,521,000 |  |  |  |
Collateralized debt |  | 568,000,000 | 568,000,000 |  |  |  |  |  |
Asset Pledged as Collateral |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Collateralized debt |  | 336,000,000 | 336,000,000 |  |  |  |  |  |
Short-term term loans, variable rate | Japan | Subsidiary Term Loans |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  | 9,574,000 | 9,574,000 |  | 4,042,000 |  |  |  |
Borrowing capacity available |  | $ 4,500,000 | $ 4,500,000 |  |  |  |  |  |
Short-term term loans, variable rate | Japan | Subsidiary Term Loans | Weighted Average |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Weighted average interest rate (as a percent) |  | 0.25% | 0.25% | 0.25% |  |  |  |  |
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% | 6.625% |  |  |  |  |
Total debt |  | $ 525,000,000 | $ 525,000,000 |  | 525,000,000 |  |  |  |
Subsidiary Term Loans | Term loan, fixed rate at 1.85%, due April 2024 | Korea |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 1.85% | 1.85% | 1.85% |  |  |  |  |
Total debt |  | $ 0 | $ 0 |  | 0 |  |  |  |
Face amount of debt | ₩ |  |  |  |  |  |  |  |  | ₩ 80,000,000,000
Number of annual borrowings | borrowing |  |  |  |  |  |  |  |  | 6
Borrowing capacity available |  | $ 59,000,000 | $ 59,000,000 | ₩ 80,000,000,000 |  |  |  |  |
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% | 2.12% |  |  |  |  |
Total debt |  | $ 200,000,000 | $ 200,000,000 |  | 200,000,000 |  |  |  |
Subsidiary Term Loans | Term loan, fixed rate at 1.30%, due July 2023 | Japan |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 1.30% | 1.30% | 1.30% |  |  |  |  |
Total debt |  | $ 0 | $ 0 |  | 29,744,000 |  |  |  |
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% | 1.35% |  |  |  |  |
Total debt |  | $ 47,700,000 | $ 47,700,000 |  | 86,943,000 |  |  |  |
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% | 1.20% |  |  |  |  |
Total debt |  | $ 32,838,000 | $ 32,838,000 |  | 49,878,000 |  |  |  |
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% | 1.23% |  |  |  |  |
Total debt |  | $ 57,006,000 | $ 57,006,000 |  | 79,927,000 |  |  |  |
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% | 1.59% |  |  |  |  |
Total debt |  | $ 89,342,000 | $ 89,342,000 |  | 119,738,000 |  |  |  |
Subsidiary Term Loans | Term Loan, SOFR plus 0.75% Due March 2024 | China |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  | $ 45,000,000 | 45,000,000 |  | 46,000,000 |  |  |  |
Subsidiary Term Loans | Term Loan, SOFR plus 0.75% Due March 2024 | China | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate spread (as a percent) |  | 0.75% |  |  |  |  |  |  |
Subsidiary Term Loans | Term Loan, SOFR Plus 0.75% Due June 2025 | China |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  | $ 38,000,000 | 38,000,000 |  | 39,000,000 |  |  |  |
Subsidiary Term Loans | Term Loan, SOFR Plus 0.75% Due June 2025 | China | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate spread (as a percent) | 0.75% | 0.75% |  |  |  |  |  |  |
Subsidiary Term Loans | Term Loan, SOFR Plus 0.75% Due 2025 | China |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  | $ 58,000,000 | $ 58,000,000 |  | 59,500,000 |  |  |  |
Subsidiary Term Loans | Term Loan, SOFR Plus 0.75% Due 2025 | China | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate spread (as a percent) |  | 0.75% |  |  |  |  |  |  |
Subsidiary Term Loans | Amended All Term Loan, Annual Base Rate | China |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Weighted average interest rate (as a percent) |  | 6.05% | 6.05% | 6.05% |  |  |  |  |
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 |  | 0 |  |  |  |
Borrowing capacity available |  | 15,000,000 | 15,000,000 |  |  |  |  |  |
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% |  |  |
Total debt |  | 0 | 0 |  | $ 0 |  |  |  |
Credit facility, borrowing capacity |  |  |  |  |  |  | 600,000,000 |  |
Line of Credit | 2022 Singapore Revolver | Revolving Credit Facility | Singapore |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Borrowing capacity available |  | $ 600,000,000 | $ 600,000,000 |  |  |  |  |  |
Credit facility, base amount |  |  |  |  |  |  | $ 250,000,000 |  |
Credit facility percentage of variable borrowings |  |  |  |  |  |  | 37.50% |  |

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