Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity (Preferred Stock) (Narrative) (Details)

v3.21.1
Shareholders' Equity (Preferred Stock) (Narrative) (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
item
$ / shares
Mar. 31, 2020
USD ($)
Shareholders' Equity [Abstract]    
Redeemable preferred stock, redemption price per share | $ / shares $ 25.00  
Distributions to preferred shareholders | $ $ 12,046,000 $ 12,046,000
Number of quarterly dividends in arrearage before preferred shareholders can elect additional board members | item 6  
Number of additional board members the preferred shareholders can elect in the case of an excess arrearage of quarterly dividends | item 2  
Dividends in arrears | $ $ 0