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Net Income Per Share - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Feb. 28, 2023
Dec. 31, 2021
Earnings Per Share [Abstract]                
Antidilutive options excluded from computation of diluted net income per share (in shares) 100,000   100,000   100,000 100,000    
Stock repurchase program, shares authorized (in shares)             1,000,000,000 650,000
Share purchased under share repurchase program (in shares) 492,710   86,667   676,070 476,667    
Stock purchase program, cost of shares purchased $ 173.4 $ 60.1 $ 28.6 $ 147.1 $ 233.5 $ 175.7    
Stock repurchase program, average price per share (in dollars per share) $ 351.82   $ 329.40   $ 345.33 $ 368.54