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Net Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Earnings Per Share [Abstract]        
Net income—basic $ 198,280 $ 126,412 $ 580,604 $ 407,226
Net income—diluted $ 198,280 $ 126,412 $ 580,604 $ 407,226
Average common shares outstanding—basic (in shares) 162,506 186,741 171,116 191,357
Dilutive effect of share-based compensation arrangements (in shares) 2,232 1,301 2,502 1,545
Adjusted average common shares outstanding—diluted (in shares) 164,738 188,042 173,618 192,902
Net income per share        
Basic net income per share (in usd per share) $ 1.22 $ 0.68 $ 3.39 $ 2.13
Diluted net income per share (in usd per share) $ 1.20 $ 0.67 $ 3.34 $ 2.11