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Shareholders' Equity - Summary of Activities in Common Stock (Details) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Equity [Abstract]        
Purchases of treasury shares $ 0 $ (12,975) $ 0 $ (12,975)
Purchases of treasury (in shares) 0 (32) 0 (32)
Stock option exercises $ 8,178 $ 11,286 $ 16,223 $ 29,388
Stock option exercises (in shares) 51 89 101 210
Employee stock plan purchases $ 4,478 $ 3,162 $ 8,156 $ 6,200
Employee stock plan purchases (in shares) 12 9 20 17
Restricted stock units vested, net of withheld shares upon award settlement $ (7,743) $ (7,052) $ (20,330) $ (16,010)
Restricted stock units vested, net of withheld shares upon award settlement (in shares) 50 43 128 99