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Long-Term Debt - Senior Secured Credit Facility (Details)
1 Months Ended 12 Months Ended
Apr. 19, 2021
USD ($)
Oct. 28, 2019
USD ($)
day
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2021
USD ($)
Sep. 07, 2016
USD ($)
Senior Secured Credit Facility            
Debt Instrument [Line Items]            
Principal amount of debt   $ 360,000,000       $ 185,000,000
Maximum capitalization ratio (as a percent)   45.00%        
Minimum collateral coverage ratio   1.8        
Minimum fixed charge coverage ratio required if excess availability falls below certain conditions   1.0        
Minimum excess availability of credit facility before triggering fixed coverage ratio requirement, amount   $ 45,000,000        
Minimum excess availability of credit facility before triggering fixed coverage ratio requirement, percentage of the maximum available borrowing amount (as a percent)   10.00%        
Threshold consecutive trading days | day   2        
Senior Secured Credit Facility | Secured Debt            
Debt Instrument [Line Items]            
Principal amount of debt   $ 180,000,000       46,000,000
Delay draw period of debt instrument   3 years        
Repayment of debt   $ 46,000,000        
Senior Secured Credit Facility | Secured Debt | Term Loan Facility            
Debt Instrument [Line Items]            
Principal amount of debt     $ 180,000,000      
Debt instrument, term     10 years      
Senior Secured Credit Facility | Secured Debt | Minimum            
Debt Instrument [Line Items]            
Debt instrument, term   6 years        
Senior Secured Credit Facility | Secured Debt | Maximum            
Debt Instrument [Line Items]            
Debt instrument, term   10 years        
Senior Secured Credit Facility | Secured Debt | LIBOR | Minimum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 1.50%          
Senior Secured Credit Facility | Secured Debt | LIBOR | Maximum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 2.40%          
Senior Secured Credit Facility | Secured Debt | Base Rate | Minimum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 0.50%          
Senior Secured Credit Facility | Secured Debt | Base Rate | Maximum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 1.40%          
Senior Secured Credit Facility | Line of Credit            
Debt Instrument [Line Items]            
Maximum borrowing capacity of credit facility   $ 180,000,000       $ 139,000,000
Debt instrument, term   6 years        
Proportion of net cash proceeds needed for prepayment (as a percent)   100.00%        
Line of credit facility, net cash proceeds, in excess amount   $ 25,000,000        
Available credit facility borrowing capacity       $ 180,000,000 $ 180,000,000  
Credit facility borrowings         $ 180,000,000  
Senior Secured Credit Facility | Line of Credit | Minimum            
Debt Instrument [Line Items]            
Credit facility commitment fee percentage, unutilized commitments (as a percent)   0.275%        
Senior Secured Credit Facility | Line of Credit | Maximum            
Debt Instrument [Line Items]            
Credit facility commitment fee percentage, unutilized commitments (as a percent)   0.325%        
Senior Secured Credit Facility | Line of Credit | LIBOR            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent)       2.13%    
Senior Secured Credit Facility | Line of Credit | LIBOR | Minimum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 1.50%          
Senior Secured Credit Facility | Line of Credit | LIBOR | Maximum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 2.00%          
Senior Secured Credit Facility | Line of Credit | Base Rate | Minimum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 0.50%          
Senior Secured Credit Facility | Line of Credit | Base Rate | Maximum            
Debt Instrument [Line Items]            
Interest rate margin applicable to borrowings (as a percent) 1.00%          
Amended Senior Secured Credit Facility            
Debt Instrument [Line Items]            
Principal amount of debt $ 360,000,000          
Amended Senior Secured Credit Facility | Secured Debt | Term Loan Facility            
Debt Instrument [Line Items]            
Principal amount of debt $ 180,000,000          
Delay draw period of debt instrument 3 years          
Repayment of debt $ 180,000,000          
Annual debt payment commencing on the fifth anniversary of each loan's draw date (as a percent)   5.00%        
Amended Senior Secured Credit Facility | Secured Debt | Minimum            
Debt Instrument [Line Items]            
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate 1.70%          
Amended Senior Secured Credit Facility | Secured Debt | Minimum | Term Loan Facility            
Debt Instrument [Line Items]            
Debt instrument, term 6 years          
Credit facility commitment fee percentage, unutilized commitments (as a percent)   0.25%        
Amended Senior Secured Credit Facility | Secured Debt | Maximum            
Debt Instrument [Line Items]            
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate 2.10%          
Amended Senior Secured Credit Facility | Secured Debt | Maximum | Term Loan Facility            
Debt Instrument [Line Items]            
Debt instrument, term 10 years          
Credit facility commitment fee percentage, unutilized commitments (as a percent)   0.35%        
Amended Senior Secured Credit Facility | Line of Credit            
Debt Instrument [Line Items]            
Maximum borrowing capacity of credit facility $ 180,000,000          
Uncommitted ability to increase borrowing capacity, maximum $ 360,000,000