Quarterly report pursuant to Section 13 or 15(d)

Equity and Mezzanine Equity - Changes in Carrying Value of Series D Preferred (Details)

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Equity and Mezzanine Equity - Changes in Carrying Value of Series D Preferred (Details) - Series D Preferred - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Increase (Decrease) in Temporary Equity [Roll Forward]    
Series D Preferred, Beginning Balance $ 95,563 $ 87,225
Accretion of Preferred Stock discount 140 148
Undeclared dividends 2,111 2,419
Temporary Equity, Other Changes (10,493)  
Series D Preferred, Ending Balance $ 87,321 $ 89,792