XML 109 R99.htm IDEA: XBRL DOCUMENT v3.21.1
Convertible Debt and Notes Payable - Notes Payable (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 24, 2021
Sep. 30, 2019
May 07, 2019
Jun. 11, 2018
Dec. 14, 2017
Dec. 08, 2017
Debt and Capital Lease Obligations [Line Items]                
Gain/(loss) on debt extinguishment $ (4,538,000) $ 0            
2024 Notes | Senior Notes                
Debt and Capital Lease Obligations [Line Items]                
Debt Instrument, Face Amount         $ 53,000,000.0      
Interest rate         7.25%      
Debt Instrument, Additional amount issued       $ 25,000,000.0        
Debt Instrument, Unamortized Premium       500,000        
Interest Expense, Debt, Excluding Amortization 1,400,000 1,400,000            
Debt Issuance Costs, Gross       600,000 $ 1,500,000      
2033 Notes | Senior Notes                
Debt and Capital Lease Obligations [Line Items]                
Debt Instrument, Face Amount       $ 10,000,000.0   $ 90,000,000.0    
Interest Expense, Debt, Excluding Amortization 1,900,000 1,900,000            
Debt Issuance Costs, Gross           $ 3,600,000    
2027 Notes | Senior Notes                
Debt and Capital Lease Obligations [Line Items]                
Debt Instrument, Face Amount     $ 138,000,000.0       $ 18,000,000.0 $ 120,000,000.0
Interest Expense, Debt, Excluding Amortization 2,500,000 $ 2,500,000            
Debt Issuance Costs, Gross               $ 5,000,000.0
Gain/(loss) on debt extinguishment $ 4,400,000