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Changes in Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Amounts reclassified from accumulated other comprehensive income (loss), tax | $ 23 | $ (279) | $ (667)
Foreign currency translation adjustments, tax | 0 | 0 | 0
Unrealized (losses) gains on marketable securities, tax | (2,308) | 1,055 | 1,910
Unrealized Losses on Cash Flow Hedges | (708) | 0 | 0
Retirement plans prior service benefit, tax | (1,130) | (1,128) | (1,126)
Foreign Currency Translation Reclassification Adjustments |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Other comprehensive income (loss) before reclassifications, tax | 0 | 0 |
Amounts reclassified from accumulated other comprehensive income (loss), tax | 0 | 0 |
Other comprehensive income (loss), tax | 0 | 0 |
Unrealized (Losses) Gains on Marketable Securities |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Other comprehensive income (loss) before reclassifications, tax | (3,388) | (578) |
Amounts reclassified from accumulated other comprehensive income (loss), tax | 25 | (277) | (665)
Other comprehensive income (loss), tax | (3,363) | (855) |
Unrealized Losses on Cash Flow Hedges |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Other comprehensive income (loss) before reclassifications, tax | (708) | 0 |
Amounts reclassified from accumulated other comprehensive income (loss), tax | 0 | 0 |
Other comprehensive income (loss), tax | (708) | 0 |
Amortization of Prior Service Credit |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Other comprehensive income (loss) before reclassifications, tax | 0 | 0 |
Amounts reclassified from accumulated other comprehensive income (loss), tax | (2) | (2) | $ (2)
Other comprehensive income (loss), tax | $ (2) | $ (2) |

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- Definition The tax effect from the total of net (gain) loss, prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References No definition available. + Details
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- Definition The tax effect from accumulated adjustment, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains (losses). + References No definition available. + Details
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- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss) before reclassification adjustment from accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e640-108580 + Details
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