Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	$ 4,030,608	$ 3,727,163	$ 3,995,035	$ 3,699,701
Other comprehensive income (loss) before reclassifications			(11,866)	(14,988)
Amounts reclassified from accumulated other comprehensive income (loss)			(270)	(279)
Total other comprehensive income (loss)	(2,696)	(13,658)	(12,136)	(15,267)
Balance at end of period	4,083,334	3,762,859	4,083,334	3,762,859
Unrealized Gains (Losses) on Available-for-Sale Debt Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period			212	(1,573)
Other comprehensive income (loss) before reclassifications			(419)	176
Amounts reclassified from accumulated other comprehensive income (loss)			(100)	(84)
Total other comprehensive income (loss)			(519)	92
Balance at end of period	(307)	(1,481)	(307)	(1,481)
Defined Benefit Pension
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period			15,905	14,220
Other comprehensive income (loss) before reclassifications			0	0
Amounts reclassified from accumulated other comprehensive income (loss)			(170)	(195)
Total other comprehensive income (loss)			(170)	(195)
Balance at end of period	15,735	14,025	15,735	14,025
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period			233	4,052
Other comprehensive income (loss) before reclassifications			(11,447)	(15,164)
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Total other comprehensive income (loss)			(11,447)	(15,164)
Balance at end of period	(11,214)	(11,112)	(11,214)	(11,112)
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	6,910	15,090	16,350	16,699
Total other comprehensive income (loss)	(2,696)	(13,658)	(12,136)	(15,267)
Balance at end of period	$ 4,214	$ 1,432	$ 4,214	$ 1,432