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Basis of Presentation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
Nov. 30, 2017
Aug. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Mar. 31, 2018
Apr. 30, 2017
Basis Of Presentation [Line Items]              
Repurchases of common stock, value     $ 0 $ 0 $ 155,583    
Treasury stock shares     200,000 200,000      
Share Repurchase Program              
Basis Of Presentation [Line Items]              
Repurchases of common stock, value         $ 34,700    
Repurchases of outstanding common stock, shares         1,342,786    
Maximum              
Basis Of Presentation [Line Items]              
Stock repurchase program, authorized amount           $ 50,000 $ 50,000
Prior Senior Secured Revolving Credit Facility              
Basis Of Presentation [Line Items]              
Share repurchases funding through borrowings   $ 40,000          
Cinven              
Basis Of Presentation [Line Items]              
Repurchases of common stock, value   $ 60,500          
Purchase price of repurchased shares   $ 30.27          
Repurchases of outstanding common stock, shares   2,000,000          
Secondary Offering | Operating Expenses              
Basis Of Presentation [Line Items]              
Professional fees       $ 700 $ 400    
Secondary Offering | Prior Senior Secured Revolving Credit Facility              
Basis Of Presentation [Line Items]              
Share repurchases funding through borrowings $ 60,000            
Secondary Offering | Cinven              
Basis Of Presentation [Line Items]              
Repurchases of outstanding common stock, shares 2,000,000            
Repurchases of common stock, value $ 60,300            
Purchase price of repurchased shares $ 30.16            
Shares issued and sold       16,399,997 4,600,000