Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

v3.20.4
Stockholders' Equity (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Aug. 07, 2020
shares
Jun. 18, 2019
USD ($)
$ / shares
May 30, 2018
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
Nov. 30, 2020
shares
Aug. 06, 2020
shares
Class of Stock [Line Items]                
Warrants issued (in shares) | shares             1,750,000  
Stock split, conversion ratio 0.1              
Common stock, shares outstanding (in shares) | shares 39,746,967     39,758,817 39,659,001     397,479,684
Common stock, shares authorized (in shares) | shares 52,500,000     52,500,000       525,000,000
Preferred stock dividend       $ 0 $ 3,997 $ 7,295    
Issuance of common stock       $ 0 $ 0 $ 287,988    
Common Stock                
Class of Stock [Line Items]                
Shares of common stock issued in public offering (in shares) | shares     25,300,000          
Issuance of common stock     $ 288,000          
Series A Preferred Stock                
Class of Stock [Line Items]                
Preferred stock cumulative cash dividends rate       10.00%        
Preferred stock, liquidation preference (in dollars per share) | $ / shares   $ 50.00            
Accrued and unpaid dividends (in dollars per share) | $ / shares   0.24            
Redemption price (in dollars per share) | $ / shares   $ 50.24            
Redemption amount   $ 73,000            
Loss on redemption   8,300            
Redemption date carrying value   $ 64,700