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DEBT (Details) - USD ($)
1 Months Ended 3 Months Ended
Feb. 04, 2015
Mar. 31, 2021
May 31, 2020
Mar. 31, 2020
Mar. 31, 2021
Mar. 25, 2020
Dec. 30, 2020
Debt Instrument [Line Items]              
Proceeds from revolving credit facility         $ 0 $ 50,000,000  
Notes payable   $ 242,875,000     242,875,000   $ 0
Interest costs incurred         368,000 52,000  
Payments of Financing Costs         $ 70,000 $ 0  
0% Convertible Senior Notes | Private Placement              
Debt Instrument [Line Items]              
Conversion rate   5,867.9000          
Class A Common Stock              
Debt Instrument [Line Items]              
Common stock par value (in dollars per share)   $ 0.001     $ 0.001   $ 0.001
Revolving Credit Facility              
Debt Instrument [Line Items]              
Payments of Financing Costs         $ 110,000    
Notes payable              
Debt Instrument [Line Items]              
Proceeds from revolving credit facility       $ 50,000,000      
Notes payable   $ 50,000,000     50,000,000    
Revolving Credit Facility | Revolving Credit Facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity   50,000,000     50,000,000    
Line of Credit Facility, Incremental Borrowing Capacity   100,000,000     100,000,000    
Third Amendment and Restated Credit Arrangement | Line of credit              
Debt Instrument [Line Items]              
Term to maturity 5 years            
Third Amendment and Restated Credit Arrangement | Letter of credit | Line of credit              
Debt Instrument [Line Items]              
Maximum borrowing capacity   $ 15,000,000     $ 15,000,000    
First Amendment to the Credit Agreement | Line of credit              
Debt Instrument [Line Items]              
Debt instrument, minimum required liquidity     $ 25,000,000        
First Amendment to the Credit Agreement | Minimum | Line of credit | London Interbank Offered Rate (LIBOR)              
Debt Instrument [Line Items]              
Basis spread on variable rate     1.00%        
First Amendment to the Credit Agreement | Minimum | Line of credit | Prime rate              
Debt Instrument [Line Items]              
Basis spread on variable rate     0.00%        
First Amendment to the Credit Agreement | Maximum | Line of credit | London Interbank Offered Rate (LIBOR)              
Debt Instrument [Line Items]              
Basis spread on variable rate     2.50%        
First Amendment to the Credit Agreement | Maximum | Line of credit | Prime rate              
Debt Instrument [Line Items]              
Basis spread on variable rate     1.50%