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Changes in Accumulated Other Comprehensive Income (loss) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance $ 2,562,444 $ 2,207,018 $ 1,480,158
Other comprehensive (loss) income (43,920) (39,464) 52,370
Balance 2,451,294 2,562,444 2,207,018
Foreign Currency Translation Reclassification Adjustments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance (10,818) 25,389  
Other comprehensive loss before reclassifications, net of tax (29,031) (36,207)  
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 0 0  
Other comprehensive (loss) income (29,031) (36,207)  
Balance (39,849) (10,818) 25,389
Unrealized Gains (Losses) on Marketable Securities      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance 3,704 6,954  
Other comprehensive loss before reclassifications, net of tax (12,666) (2,255)  
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 301 (995)  
Other comprehensive (loss) income (12,365) (3,250)  
Balance (8,661) 3,704 6,954
Unrealized Losses on Cash Flow Hedges      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance 0 0  
Other comprehensive loss before reclassifications, net of tax (2,517) 0  
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 0 0  
Other comprehensive (loss) income (2,517) 0  
Balance (2,517) 0 0
Amortization of Prior Service Credit      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance 1,166 1,173  
Other comprehensive loss before reclassifications, net of tax 0 0  
Amounts reclassified from accumulated other comprehensive income (loss), net of tax (7) (7) (7)
Other comprehensive (loss) income (7) (7)  
Balance 1,159 1,166 1,173
Accumulated Other Comprehensive Income (Loss)      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance (5,948) 33,516 (18,854)
Other comprehensive loss before reclassifications, net of tax (44,214) (38,462)  
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 294 (1,002) (2,372)
Other comprehensive (loss) income (43,920) (39,464) 52,370
Balance $ (49,868) $ (5,948) $ 33,516