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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Balance at beginning of period $ 3,727,163 $ 3,126,822 $ 3,699,701 $ 2,972,546
Other comprehensive income (loss) before reclassifications     (14,988) (25,746)
Amounts reclassified from accumulated other comprehensive income (loss)     (279) 21
Total other comprehensive income (loss) (13,658) (16,243) (15,267) (25,725)
Balance at end of period 3,762,859 3,227,550 3,762,859 3,227,550
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     (1,573) (348)
Other comprehensive income (loss) before reclassifications     176 (1,719)
Amounts reclassified from accumulated other comprehensive income (loss)     (84) 12
Total other comprehensive income (loss)     92 (1,707)
Balance at end of period (1,481) (2,055) (1,481) (2,055)
Defined Benefit Pension        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Balance at beginning of period     14,220 5,616
Other comprehensive income (loss) before reclassifications     0 0
Amounts reclassified from accumulated other comprehensive income (loss)     (195) 9
Total other comprehensive income (loss)     (195) 9
Balance at end of period 14,025 5,625 14,025 5,625
Foreign Currency Translation        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Balance at beginning of period     4,052 14,710
Other comprehensive income (loss) before reclassifications     (15,164) (24,027)
Amounts reclassified from accumulated other comprehensive income (loss)     0 0
Total other comprehensive income (loss)     (15,164) (24,027)
Balance at end of period (11,112) (9,317) (11,112) (9,317)
Accumulated Other Comprehensive Income (Loss)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Balance at beginning of period 15,090 10,496 16,699 19,978
Total other comprehensive income (loss) (13,658) (16,243) (15,267) (25,725)
Balance at end of period $ 1,432 $ (5,747) $ 1,432 $ (5,747)