Quarterly report pursuant to Section 13 or 15(d)

Borrowings - 2020 Unsecured Note (Details)

v3.20.2
Borrowings - 2020 Unsecured Note (Details) - USD ($)
6 Months Ended
Apr. 29, 2020
Jun. 30, 2020
Jun. 30, 2019
Mar. 23, 2020
Debt Instrument [Line Items]        
Borrowing issuance costs   $ 2,387,000 $ 2,200,000  
Number of shares for purchase under warrant (in shares)       8,772,000
2020 Unsecured Note | Senior note        
Debt Instrument [Line Items]        
Principal amount $ 56,000,000.0 56,000,000    
Proceeds from debt, net of fees 47,400,000      
Borrowing issuance costs 2,600,000      
Debt issuance discount $ 6,000,000.0      
Number of shares for purchase under warrant (in shares) 20,000,000.0      
Warrant fair value disclosure $ 16,100,000      
Additional amortization payments $ 8,000,000.0      
2020 Unsecured Note | Senior note | Minimum        
Debt Instrument [Line Items]        
Debt Instrument repurchase percentage 105.00%      
2020 Unsecured Note | Senior note | Maximum        
Debt Instrument [Line Items]        
Debt Instrument repurchase percentage 115.00%      
2020 Unsecured Note | Senior note | June 1, 2020        
Debt Instrument [Line Items]        
Debt Instrument payment required on the first day of month   3,500,000    
Debt instrument payment required amount   3,500,000    
2020 Unsecured Note | Senior note | July 1, 2020 – October 1, 2020        
Debt Instrument [Line Items]        
Debt Instrument payment required on the first day of month   5,000,000    
Debt instrument payment required amount   20,000,000    
2020 Unsecured Note | Senior note | November 1, 2020        
Debt Instrument [Line Items]        
Debt Instrument payment required on the first day of month   4,500,000    
Debt instrument payment required amount   4,500,000    
2020 Unsecured Note | Senior note | December 1, 2020 – June 1, 2021        
Debt Instrument [Line Items]        
Debt Instrument payment required on the first day of month   4,000,000    
Debt instrument payment required amount   $ 28,000,000