Changes in Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	$ 1,334,348	$ 994,678
Other comprehensive income (loss) before reclassifications	3,512	3,512
Amounts reclassified from accumulated other comprehensive income, net of tax	310
Ending Balance, Amount	1,751,882	1,199,384
Cumulative Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	950	(3,070)
Other comprehensive income (loss) before reclassifications	2,548	(1,805)
Ending Balance, Amount	3,498	(4,875)
Unrealized Gain (Loss) on Investments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	877	(9,820)
Other comprehensive income (loss) before reclassifications	2,209	5,317
Ending Balance, Amount	3,086	(4,503)
Unrealized Gain (Loss) on Derivate Instruments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income (loss) before reclassifications	(1,245)
Amounts reclassified from accumulated other comprehensive income, net of tax	310
Ending Balance, Amount	(935)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	1,827	(12,890)
Ending Balance, Amount	$ 5,649	$ (9,378)