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Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance |  | $ 416,164 |
Amounts reclassified from AOCI: |  |  |
Net current period other comprehensive income (loss) |  | (6,476) | $ 4,011
Ending Balance |  | 413,369 |
Unrecognized Benefit Cost [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance |  | (4,478) | (4,492)
Amounts reclassified from AOCI: |  |  |
Amortization of defined benefit pension actuarial gain | [1] | 89 | 89
Net current period other comprehensive income (loss) |  | 89 | 89
Ending Balance |  | (4,389) | (4,403)
Cumulative Translation Adjustment [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance |  | (55,828) | (65,495)
Other comprehensive income before reclassifications: |  |  |
Gain on foreign currency translation adjustment |  | (6,565) | 3,922
Amounts reclassified from AOCI: |  |  |
Net current period other comprehensive income (loss) |  | (6,565) | 3,922
Ending Balance |  | (62,393) | (61,573)
Accumulated Other Comprehensive Loss [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance |  | (60,306) | (69,987)
Other comprehensive income before reclassifications: |  |  |
Gain on foreign currency translation adjustment |  | (6,565) | 3,922
Amounts reclassified from AOCI: |  |  |
Amortization of defined benefit pension actuarial gain | [1] | 89 | 89
Net current period other comprehensive income (loss) |  | (6,476) | 4,011
Ending Balance |  | $ (66,782) | $ (65,976)
[1] | This AOCI component is included in the computation of net periodic pension expense (income) as noted in Note 6 – Pension Plans

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