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Dividends (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
May 15, 2019
Mar. 31, 2019
Dividends    
Cash dividends declared per common share   $ 0.3025
Series A    
Dividends    
Preferred stock dividends accrued   $ 29
Series A | Forecast    
Dividends    
Preferred stock dividends accrued $ 98