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Stockholders' Equity - Additional Information (Details) - USD ($)
 12 Months Ended
Aug. 16, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 03, 2020
Jul. 28, 2020
Feb. 20, 2020
Feb. 21, 2019
Aug. 13, 2018
Dec. 01, 2017
May 18, 2017
Jun. 02, 2016
Stockholders Equity [Line Items]                        
Common stock, par value (in dollars per share)   $ 0.01 $ 0.01                  
Reduction to additional paid in capital   $ (353,451,000) $ (105,941,000) $ (55,738,000)                
Additional paid-in capital   0 216,162,000                  
Reduction to retained earnings   $ (1,506,271,000) $ (1,413,453,000)                  
Common stock, shares outstanding (in shares)   34,481,000 37,390,000                  
2016 Stock Repurchase Program                        
Stockholders Equity [Line Items]                        
Share repurchase program authorized amount           $ 900,000,000.0           $ 100,000,000.0
Stock repurchase program additional amount authorized         $ 200,000,000.0 $ 200,000,000.0 $ 100,000,000.0 $ 100,000,000.0   $ 100,000,000.0 $ 100,000,000.0  
Available amount under repurchase program   $ 213,200,000                    
Reduction to additional paid in capital   (353,385,000) $ (105,915,000) $ (40,722,000)                
Reduction to retained earnings   $ 117,864,000                    
Shares of common stock repurchased and retired (in shares)   3,269,000 1,258,000 756,000                
Average price paid per share (in dollars per share)   $ 108.11 $ 84.16 $ 53.88                
2018 Stock Repurchase Program                        
Stockholders Equity [Line Items]                        
Share repurchase program authorized amount                 $ 25,000,000.0      
Reduction to additional paid in capital $ (15,000,000.0)                      
Shares of common stock repurchased and retired (in shares) 196,050                      
Average price paid per share (in dollars per share) $ 76.51