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LONG-TERM DEBT - Additional Information (Details) - USD ($)
6 Months Ended
May 11, 2020
Apr. 24, 2020
Apr. 23, 2020
May 10, 2019
Jul. 10, 2014
Jun. 30, 2020
Mar. 16, 2020
Dec. 31, 2019
Jun. 30, 2019
Mar. 26, 2019
Mar. 25, 2019
6.75% Senior Notes due 2027 | 6.75% Senior Notes due 2027                      
Debt Instrument [Line Items]                      
Interest rate       6.75%   6.75%          
Principal amount       $ 400,000,000              
Maximum capacity on line of credit       30.00%              
Maximum leverage ratio       5.50              
Redemption price percentage           100.00%          
Amount of original principal amount redeemable           40.00%          
Amount of notes redeemable plus accrued and unpaid interest           106.75%          
Line of Credit | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Interest rate           2.93%          
Commitment increase limit       $ 195,000,000              
Commitment increase limit, EBITDA       100.00%              
Minimum unrestricted cash at April 30, 2020   $ 75,000,000.0                  
Minimum unrestricted cash at June 30, 2020   65,000,000.0                  
Minimum unrestricted cash at July 31, 2020   55,000,000.0                  
Minimum unrestricted cash at March 31, 2021   $ 50,000,000.0                  
Line of Credit | Senior Secured Credit Facility | Federal Funds Effective Swap Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       0.50%              
Line of Credit | Senior Secured Credit Facility | LIBOR                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       1.00%              
Floor on variable rate, option two       1.00%              
Line of Credit | Credit Facility                      
Debt Instrument [Line Items]                      
Cash held           $ 88,900,000   $ 64,400,000      
Term Loan | Line of Credit | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity       $ 300,000,000              
Quarterly principal payment amounts           750,000          
Change in loan facility $ 275,000,000                    
Term Loan | Line of Credit | Senior Secured Credit Facility | LIBOR                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 8.00%                    
Floor on variable rate 1.00%                    
Term Loan | Line of Credit | Credit Facility                      
Debt Instrument [Line Items]                      
Quarterly principal payment amounts         $ 1,200,000            
Principal amount         $ 480,000,000            
Discount at issuance         1.00%            
Revolving Credit Facility | Line of Credit | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity       $ 250,000,000              
Commitment fee       0.50%              
Outstanding balance           $ 0 $ 250,000,000        
Repayments of debt $ 250,000,000                    
Revolving Credit Facility | Line of Credit | Senior Secured Credit Facility | LIBOR                      
Debt Instrument [Line Items]                      
Floor on variable rate, option one       0.00%              
Basis spread on variable rate   2.75%                  
Floor on variable rate   0.75% 0.00%                
Revolving Credit Facility | Line of Credit | Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity         $ 40,000,000       $ 150,000,000 $ 150,000,000 $ 100,000,000
Revolving Credit Facility | Line of Credit | Credit Facility | LIBOR                      
Debt Instrument [Line Items]                      
Basis spread on variable rate         3.50%            
Floor on variable rate         1.00%