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Long-Term Debt - Schedule of Debt (Details) - USD ($)
12 Months Ended
Nov. 30, 2020
Dec. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Debt Instrument [Line Items]        
Total   $ 275,730,000   $ 506,202,000
Less unamortized discount   (402,000)   (3,375,000)
Less unamortized debt issuance costs   0   (759,000)
Total net of discount and debt issuance costs   275,328,000   502,068,000
Less current obligations   (20,000,000)   (247,000,000)
Long-term debt   255,328,000   255,068,000
Periodic payment, principal   $ 5,000,000.0    
11.25% Senior Notes        
Debt Instrument [Line Items]        
Debt instrument interest rate (as a percent)   11.25%    
Line of Credit | Successor Senior Secured Credit Facility        
Debt Instrument [Line Items]        
Total   $ 209,600,000    
Periodic payment, principal $ 5,000,000.0      
Line of Credit | Predecessor Senior Secured Credit Facility        
Debt Instrument [Line Items]        
Total       247,000,000
Secured Debt | Second-Out Senior Secured Term Loan        
Debt Instrument [Line Items]        
Total   55,000,000    
Senior Notes | 11.25% Senior Notes        
Debt Instrument [Line Items]        
Total       250,000,000
Debt instrument interest rate (as a percent) 11.25%      
Mortgages Debt        
Debt Instrument [Line Items]        
Total   8,712,000   8,931,000
Unsecured Debt | Coronavirus Aid, Relief and Economic Security Act        
Debt Instrument [Line Items]        
Total   2,157,000    
Debt instrument interest rate (as a percent)     1.00%  
Other        
Debt Instrument [Line Items]        
Total   $ 261,000   $ 271,000