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Debt - Additional Information (Details)
€ in Millions, $ in Millions
 7 Months Ended 12 Months Ended
Dec. 31, 2019
USD ($)
Jun. 12, 2019
USD ($)
Jun. 05, 2019
USD ($)
Dec. 10, 2012
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2019
CAD ($)
Dec. 31, 2019
EUR (€)
May 31, 2019
USD ($)
payment
Jun. 30, 2016
USD ($)
Nov. 30, 2012
USD ($)
Disclosure Of Borrowings [Line Items]                        
Proceeds from borrowings, classified as financing activities           $ 494,000,000 $ 0          
Borrowings $ 479,732,000       $ 479,732,000 479,732,000 595,977,000          
Restricted cash released           10,700,000            
Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Notional amount     $ 300,000,000                  
Borrowings, issuance percentage     98.00%                  
Notes issued coupon rate (as a percent)     9.50%                  
Proceeds from borrowings, classified as financing activities     $ 287,100,000     294,000,000            
Borrowings 287,568,000       287,568,000 287,568,000 0          
Revolving credit facility                        
Disclosure Of Borrowings [Line Items]                        
Notional amount                   $ 250,000,000   $ 375,000,000
Borrowings 64,500,000       $ 64,500,000 $ 64,500,000   $ 0.4 € 57.6      
Restricted cash released $ 10,700,000                      
Borrowings, interest rate basis spread on LIBOR rate (as a percent) 1.8333%       1.8333% 1.8333%   1.8333% 1.8333%      
Loan undrawn standby fee (as a percent) 0.6875%                      
Current prepaid expenses $ 2,865,000       $ 2,865,000 $ 2,865,000 749,000          
Revolving credit facility | Amended and restated credit agreement                        
Disclosure Of Borrowings [Line Items]                        
Notional amount                     $ 250,000,000  
Additional borrowing capacity                     $ 100,000,000  
Senior Secured Credit Facility                        
Disclosure Of Borrowings [Line Items]                        
Notional amount                   450,000,000    
Term loan                        
Disclosure Of Borrowings [Line Items]                        
Notional amount 200,000,000       200,000,000 200,000,000       $ 200,000,000    
Proceeds from borrowings, classified as financing activities           200,000,000            
Borrowings $ 197,761,000       $ 197,761,000 $ 197,761,000 0          
Number of payments on borrowings | payment                   6    
Borrowings, interest rate basis spread on LIBOR rate (as a percent) 2.75%       2.75% 2.75%   2.75% 2.75%      
Senior notes                        
Disclosure Of Borrowings [Line Items]                        
Notional amount       $ 600,000,000                
Notes issued coupon rate (as a percent) 9.50%     6.125% 9.50% 9.50%   9.50% 9.50%      
Borrowings maturity date       Dec. 15, 2020                
Payments for accrued interest   $ 18,069,000                    
Interest and financing costs incurred   $ 3,035,000                    
Original issue discount | Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Borrowings     6,000,000                  
Commission payment and certain transaction costs | Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Borrowings     6,903,000                  
Transaction costs | Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Borrowings     $ 2,681,000                  
Transaction costs | Term loan                        
Disclosure Of Borrowings [Line Items]                        
Borrowings                   $ 2,666,000    
Fees | Revolving credit facility                        
Disclosure Of Borrowings [Line Items]                        
Borrowings                   3,333,000    
Unamortized deferred financing costs | Revolving credit facility                        
Disclosure Of Borrowings [Line Items]                        
Borrowings                   $ 524,000    
Top of range | Revolving credit facility                        
Disclosure Of Borrowings [Line Items]                        
Borrowings, interest rate basis spread on LIBOR rate (as a percent) 2.25%       2.25% 2.25%   2.25% 2.25%      
Top of range | Term loan                        
Disclosure Of Borrowings [Line Items]                        
Borrowings, interest rate basis spread on LIBOR rate (as a percent) 2.25%       2.25% 2.25%   2.25% 2.25%      
Bottom of range | Revolving credit facility                        
Disclosure Of Borrowings [Line Items]                        
Borrowings, interest rate basis spread on LIBOR rate (as a percent) 3.25%       3.25% 3.25%   3.25% 3.25%      
Bottom of range | Term loan                        
Disclosure Of Borrowings [Line Items]                        
Borrowings, interest rate basis spread on LIBOR rate (as a percent) 3.25%       3.25% 3.25%   3.25% 3.25%      
Prior to December 1, 2021 | Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Percentage of aggregate principal amount of borrowings (as a percent)     100.00%                  
Premium percentage of principal amount of borrowings (as a percent)     1.00%                  
Borrowings, additional basis points     0.50%                  
Percentage of original principal amount of borrowings (as a percent)     35.00%                  
Redemption percentage of aggregate principal amount of borrowings (as a percent)     109.50%                  
December 1, 2021 | Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Redemption percentage of aggregate principal amount of borrowings (as a percent)     107.125%                  
After December 1, 2022 | Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Redemption percentage of aggregate principal amount of borrowings (as a percent)     100.00%                  
Fair value                        
Disclosure Of Borrowings [Line Items]                        
Derivative financial assets $ 5,597,000       $ 5,597,000 $ 5,597,000 $ 0          
Fair value | Senior Secured Notes due 2024                        
Disclosure Of Borrowings [Line Items]                        
Notional amount 324,000,000       324,000,000 324,000,000            
Derivative financial assets     $ 1,373,000                  
Gains on change in fair value of derivatives         4,224,000              
Fair value | Term loan                        
Disclosure Of Borrowings [Line Items]                        
Borrowings $ 200,000,000       $ 200,000,000 $ 200,000,000