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Stockholders' Equity - Repurchase of Common Stock (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Aug. 02, 2021
May 31, 2018
Mar. 31, 2017
Jul. 31, 2015
Equity, Class of Treasury Stock [Line Items]            
Stock repurchase program, authorized amount     $ 1,000.0   $ 1,500.0 $ 1,500.0
Stock repurchase program, remaining authorizations $ 696.4          
Number of shares repurchased (in shares) 3,042,696 3,925,034        
Value of shares repurchased $ 200.0 $ 175.4        
Shares acquired, average price per share (in usd per share) $ 65.74 $ 44.70        
Common Stock            
Equity, Class of Treasury Stock [Line Items]            
Number of shares repurchased (in shares)   35,100        
Value of shares repurchased   $ 1.6        
New Share Repurchase Program            
Equity, Class of Treasury Stock [Line Items]            
Stock repurchase program, authorized amount       $ 1,000.0