XML 109 R83.htm IDEA: XBRL DOCUMENT v3.22.4
Debt - 5.00% Convertible Senior Notes Due 2021 (Details) - 5.00% Convertible Senior Notes due 2021 - USD ($)
shares in Millions
8 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2019
Dec. 31, 2022
Jun. 15, 2021
Jun. 30, 2018
Jun. 30, 2016
Debt Instrument [Line Items]            
Debt instrument, interest rate           5.00%
Convertible Debt            
Debt Instrument [Line Items]            
Aggregate principal amount           $ 115,000,000
Debt instrument, interest rate     5.00%   5.00%  
Repurchase face amount $ 66,300,000 $ 66,300,000   $ 48,700,000    
Repayments of convertible debt $ 18,600,000          
Issuance of common stock for convertible notes repurchase, net (in shares) 3.2          
Repurchase of convertible debt $ 74,300,000          
Loss debt extinguishment and commitment costs   $ 6,100,000        
Convertible Debt | Whitebox Advisors, LLC | Affiliated Entity            
Debt Instrument [Line Items]            
Aggregate principal amount           47,500,000
Convertible Debt | Highbridge | Affiliated Entity            
Debt Instrument [Line Items]            
Aggregate principal amount           $ 40,400,000