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Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss, Net of Tax, by Component (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning Balance | $ 352,316 | $ 370,375 | $ 357,102 | $ 372,944
Other comprehensive (loss) income before reclassifications | (3,442) | 66 | (5,322) | (1,854)
Amounts reclassified from accumulated other comprehensive loss | 302 | 389 | 540 | 353
Net current period other comprehensive income (loss) | (3,140) | 455 | (4,782) | (1,501)
Ending Balance | 348,537 | 375,515 | 348,537 | 375,515
ASU 2018-02 [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning Balance | 385 | 385 | 385 | 385
Ending Balance | 385 | 385 | 385 | 385
Accumulated Other Comprehensive Loss [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning Balance | (13,556) | (13,595) | (11,914) | (11,639)
Ending Balance | (16,696) | (13,140) | (16,696) | (13,140)
Unrealized Gains (Losses) on Available-for-Sale Securities [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning Balance | (1,276) | (160) | (552) | 32
Other comprehensive (loss) income before reclassifications | (589) | (272) | (1,564) | (329)
Amounts reclassified from accumulated other comprehensive loss | 389 | 177 | 640 | 42
Net current period other comprehensive income (loss) | (200) | (95) | (924) | (287)
Ending Balance | (1,476) | (255) | (1,476) | (255)
Defined Benefit Plan Adjustments [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning Balance | (5,626) | (9,522) | (5,613) | (9,621)
Amounts reclassified from accumulated other comprehensive loss | (87) | 212 | (100) | 311
Net current period other comprehensive income (loss) | (87) | 212 | (100) | 311
Ending Balance | (5,713) | (9,310) | (5,713) | (9,310)
Foreign Currency Adjustments [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning Balance | (7,039) | (4,298) | (6,134) | (2,435)
Other comprehensive (loss) income before reclassifications | (2,853) | 338 | (3,758) | (1,525)
Net current period other comprehensive income (loss) | (2,853) | 338 | (3,758) | (1,525)
Ending Balance | $ (9,892) | $ (3,960) | $ (9,892) | $ (3,960)

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