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Changes in Accumulated Other Comprehensive Income (loss) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Balance | $ 2,451,294 | $ 2,562,444 | $ 2,207,018
Other comprehensive income (loss) | 22,890 | (43,920) | (39,464)
Balance | 2,525,897 | 2,451,294 | 2,562,444
Foreign Currency Translation Reclassification Adjustments |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Balance | (39,849) | (10,818) |
Other comprehensive (loss) gain before reclassifications, net of tax | 17,407 | (29,031) |
Amounts reclassified from accumulated other comprehensive income (loss), net of tax | 0 | 0 |
Other comprehensive income (loss) | 17,407 | (29,031) |
Balance | (22,442) | (39,849) | (10,818)
Unrealized Gains (Losses) on Marketable Securities |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Balance | (8,661) | 3,704 |
Other comprehensive (loss) gain before reclassifications, net of tax | 2,423 | (12,666) |
Amounts reclassified from accumulated other comprehensive income (loss), net of tax | 44 | 301 |
Other comprehensive income (loss) | 2,467 | (12,365) |
Balance | (6,194) | (8,661) | 3,704
Unrealized (Losses) Gains on Cash Flow Hedges |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Balance | (2,517) | 0 |
Other comprehensive (loss) gain before reclassifications, net of tax | 5,464 | (2,517) |
Amounts reclassified from accumulated other comprehensive income (loss), net of tax | (2,441) | 0 |
Other comprehensive income (loss) | 3,023 | (2,517) |
Balance | 506 | (2,517) | 0
Amortization of Prior Service Credit |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Balance | 1,159 | 1,166 |
Other comprehensive (loss) gain before reclassifications, net of tax | 0 | 0 |
Amounts reclassified from accumulated other comprehensive income (loss), net of tax | (7) | (7) | (7)
Other comprehensive income (loss) | (7) | (7) |
Balance | 1,152 | 1,159 | 1,166
Accumulated Other Comprehensive Income (Loss) |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Balance | (49,868) | (5,948) | 33,516
Other comprehensive (loss) gain before reclassifications, net of tax | 25,294 | (44,214) |
Amounts reclassified from accumulated other comprehensive income (loss), net of tax | (2,404) | 294 | (1,002)
Other comprehensive income (loss) | 22,890 | (43,920) | (39,464)
Balance | $ (26,978) | $ (49,868) | $ (5,948)

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