Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022
Accumulated other comprehensive income (loss):
Beginning balance	$ 1,444,998	$ 1,402,995	$ 1,268,491	$ 1,193,651	$ 1,124,789	$ 1,047,849
Other comprehensive (loss) income	(6,143)	(1,407)	1,860	(2,601)	(2,327)	(1,561)
Ending balance	1,521,117	1,444,998	1,402,995	1,231,313	1,193,651	1,124,789
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive income (loss):
Beginning balance	(6,726)	(5,319)	(7,179)	(5,205)	(2,878)	(1,317)
Other comprehensive (loss) income	(6,143)	(1,407)	1,860	(2,601)	(2,327)	(1,561)
Ending balance	(12,869)	(6,726)	(5,319)	(7,806)	(5,205)	(2,878)
Unrealized Gains (Losses) on Available-for-Sale Investments
Accumulated other comprehensive income (loss):
Beginning balance	(1,917)	(1,067)	(1,251)	(857)	(696)	(207)
Other comprehensive (loss) income	656	(850)	184	(326)	(161)	(489)
Ending balance	(1,261)	(1,917)	(1,067)	(1,183)	(857)	(696)
Foreign Currency Translation
Accumulated other comprehensive income (loss):
Beginning balance	(4,809)	(4,252)	(5,928)	(4,348)	(2,182)	(1,110)
Other comprehensive (loss) income	(6,799)	(557)	1,676	(2,275)	(2,166)	(1,072)
Ending balance	$ (11,608)	$ (4,809)	$ (4,252)	$ (6,623)	$ (4,348)	$ (2,182)