Quarterly report pursuant to Section 13 or 15(d)

10% Series B Redeemable Preferred Stock - Narrative (Details)

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10% Series B Redeemable Preferred Stock - Narrative (Details) - Series B Preferred Stock - USD ($)
$ / shares in Units, $ in Millions
9 Months Ended 12 Months Ended
Dec. 09, 2019
Dec. 29, 2017
Dec. 08, 2017
Sep. 30, 2018
Dec. 31, 2017
Dec. 08, 2019
Dec. 08, 2018
Class of Stock [Line Items]              
Temporary equity, stock issued (shares)     150,000        
Temporary equity, dividend rate (as a percent)     10.00% 10.00% 10.00%    
Temporary equity, par value (USD per share)       $ 0.0001 $ 0.0001    
Principal amount of temporary equity     $ 150.0        
Transactions costs and up-front fees     $ 10.0        
Temporary equity, additional stock authorized (shares)     50,000        
Temporary equity, liquidation preference (USD per share)       $ 1,000 $ 1,000    
Discount on derivative liability         $ 0.6    
Maximum              
Class of Stock [Line Items]              
Dividend paid out in stock (as a percent)   40.00%          
Forecast              
Class of Stock [Line Items]              
Temporary equity, liquidation preference (USD per share) $ 1,500         $ 1,350 $ 1,250
Required internal rate of return (as a percent) 16.00%