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Debt - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended
Jul. 31, 2020
Mar. 31, 2021
Dec. 31, 2020
Aug. 18, 2020
Debt Instrument [Line Items]        
Subordinated debt   $ 10,000,000 $ 0  
Outstanding under subordinated note   145,000,000 100,000,000  
Common Class A        
Debt Instrument [Line Items]        
Share repurchase program, amount authorized       $ 20,000,000.0
Fourth amendment to senior credit facility | Share buyback loans        
Debt Instrument [Line Items]        
Share repurchase program, amount authorized   $ 80,000,000.0    
Senior secured revolving credit facility        
Debt Instrument [Line Items]        
Fixed charge coverage ratio   148.00%    
Leverage ratio   145.00%    
Senior secured leverage ratio   124.00%    
Senior secured revolving credit facility | Common Class A        
Debt Instrument [Line Items]        
Repurchase, aggregate amount   10,000,000    
Senior secured revolving credit facility | Series A preferred stock        
Debt Instrument [Line Items]        
Share repurchase program, amount authorized   $ 92,700,000    
Senior secured revolving credit facility | Common class A and common class B        
Debt Instrument [Line Items]        
Default share limit, minimum amount (in shares)   13,600,000    
Senior credit facility | Fourth amendment to senior credit facility | Common Class A | Share buyback loans        
Debt Instrument [Line Items]        
Shares authorized to be repurchased (in shares)   8,000,000    
Senior credit facility | Fourth amendment to senior credit facility | Series A preferred stock | Share buyback loans        
Debt Instrument [Line Items]        
Shares authorized to be repurchased (in shares)   80,000,000.0    
Senior credit facility | Senior secured revolving credit facility        
Debt Instrument [Line Items]        
Fixed charge coverage ratio   125.00%    
Leverage ratio   250.00%    
Senior secured leverage ratio   185.00%    
Debt default, material judgment (in excess of)   $ 5,000,000.0    
Subordinated debt | Retailco        
Debt Instrument [Line Items]        
Subordinated debt   25,000,000.0    
Subordinated debt, advances, no less than   $ 1,000,000.0    
Subordinated debt, interest rate on advances   5.00%    
Minimum availability under the borrowing base   $ 5,000,000.0    
Outstanding under subordinated note   $ 10,000,000.0 0  
Revolving credit facility | Fourth amendment to senior credit facility | Eurodollar | Share buyback loans        
Debt Instrument [Line Items]        
Basis spread on variable rate   4.50%    
Revolving credit facility | Fourth amendment to senior credit facility | Base rate | Share buyback loans        
Debt Instrument [Line Items]        
Basis spread on variable rate   3.50%    
Revolving credit facility | Senior credit facility        
Debt Instrument [Line Items]        
Capitalized financing costs   $ 1,400,000 1,600,000  
Capitalized financing costs, other current   1,000,000.0 1,000,000.0  
Capitalized financing costs, other non-current   400,000 $ 600,000  
Line of credit facility, maximum borrowing capacity   $ 227,500,000    
Nonutilization fee, percent   0.50%    
Revolving credit facility | Senior credit facility | Fourth amendment to senior credit facility | Eurodollar        
Debt Instrument [Line Items]        
Basis spread on variable rate 3.25%      
Revolving credit facility | Senior credit facility | Fourth amendment to senior credit facility | Base rate        
Debt Instrument [Line Items]        
Basis spread on variable rate 2.25%      
Revolving credit facility | Senior credit facility | Fourth amendment to senior credit facility | Federal funds rate        
Debt Instrument [Line Items]        
Basis spread on variable rate 0.50%      
Revolving credit facility | Senior credit facility | Fourth amendment to senior credit facility | Reference eurodollar rate        
Debt Instrument [Line Items]        
Basis spread on variable rate 1.00%