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Stockholders' Equity - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2018
Mar. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Feb. 21, 2019
Dec. 01, 2017
May 18, 2017
Jun. 02, 2016
Stockholders Equity [Line Items]                    
Value of shares retired $ 48,332,000 $ 21,883,000   $ 14,220,000            
2016 Stock Repurchase Program                    
Stockholders Equity [Line Items]                    
Stock repurchase program authorized amount             $ 400,000,000.0     $ 100,000,000.0
Stock repurchase program additional amount authorized             $ 100,000,000.0 $ 100,000,000.0 $ 100,000,000.0  
Available amount under repurchase program $ 102,400,000       $ 102,400,000          
Shares of common stock repurchased and retired (in shares) 580   0   908 337        
Average price paid per share (in dollars per share) $ 83.34   $ 0   $ 77.33 $ 42.17        
Value of shares retired $ 48,320,000   $ 0   $ 70,197,000 $ 14,213,000