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10% Series B Redeemable Preferred Stock - Narrative (Details)
3 Months Ended 12 Months Ended
Dec. 09, 2019
$ / shares
Mar. 28, 2018
USD ($)
dividend_payment
quarter
Dec. 08, 2017
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
Sep. 30, 2019
$ / shares
Jun. 30, 2019
$ / shares
Mar. 31, 2019
$ / shares
Dec. 31, 2018
$ / shares
Sep. 30, 2018
$ / shares
Jun. 30, 2018
$ / shares
Mar. 31, 2018
$ / shares
Dec. 31, 2019
USD ($)
$ / shares
Dec. 31, 2018
$ / shares
Dec. 08, 2019
$ / shares
Dec. 08, 2018
$ / shares
Series B Preferred Stock                              
Class of Stock [Line Items]                              
Temporary equity, stock issued (shares) | shares     150,000                        
Series B preferred stock, dividend rate     10.00%                 10.00% 10.00%    
Temporary equity, par value (USD per share) | $ / shares     $ 0.0001 $ 0.0001       $ 0.0001       $ 0.0001 $ 0.0001    
Principal amount of temporary equity     $ 150,000,000                        
Transactions costs and up-front fees     $ 10,000,000                        
Temporary equity, liquidation preference (USD per share) | $ / shares $ 1,500   $ 1,000 $ 1,000       1,000       $ 1,000 $ 1,000 $ 1,350 $ 1,250
Dividend rate after failing to pay dividends   12.00%                          
Required internal rate of return (as a percent) 16.00%                     16.00%      
Base return       $ 199,200,000               $ 199,200,000      
Dividends declared on preferred stock (USD per share) | $ / shares       $ 25.21 $ 25.21 $ 24.93 $ 24.66 $ 25.21 $ 25.21 $ 24.93 $ 24.66        
Maximum | Series B Preferred Stock                              
Class of Stock [Line Items]                              
Dividend paid out in stock (as a percent)     40.00%                        
Credit Agreement | Series B Preferred Stock                              
Class of Stock [Line Items]                              
Leverage ratio maximum       4.0               4.0      
Revolving Credit Facility | Credit Agreement                              
Class of Stock [Line Items]                              
Maximum cash dividend distributions   $ 25,000,000.0                          
Unused borrowing capacity   20.00%                          
Total debt ratio, maximum   3.5                          
Failure to pay dividend, consecutive quarters threshold | quarter   3                          
Failure to pay dividends, number of times | dividend_payment   6                          
Leverage ratio maximum   3.25   4.0               4.0      
Threshold for capital expenditures requiring approval   $ 500,000                          
Failure to pay dividends, length of time, threshold for stockholder redemption   9 months                          
Revolving Credit Facility | Credit Agreement | Series B Preferred Stock                              
Class of Stock [Line Items]                              
Series B preferred stock, dividend rate     10.00%                        
Maximum cash dividend distributions   $ 25,000,000.0