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Subsequent Events (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 08, 2020	Aug. 31, 2020	Aug. 10, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Subsequent Event [Line Items]
Preferred stock, par value per share				$ 0.01		$ 0.01		$ 0.01
Preferred stock redeemed						$ 140
Subsequent Event [Member]
Subsequent Event [Line Items]
Date declared	Jul. 08, 2020
Dividends per common share	$ 0.14
Date of record	Aug. 07, 2020
Date paid	Aug. 21, 2020
Series F Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred stock, dividend rate				6.00%	6.00%	6.00%	6.00%	6.00%
Preferred stock, par value per share				$ 0.01		$ 0.01
Preferred stock, redemption price				$ 1,000		$ 1,000
Series F Preferred Stock [Member] | Forecast [Member]
Subsequent Event [Line Items]
Redemption of preferred stock, shares		6,465
Preferred stock redeemed		$ 6,500
Series C Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred stock, dividend rate				6.00%	6.00%	6.00%	6.00%	6.00%
Preferred stock, par value per share				$ 0.01		$ 0.01
Series C Preferred Stock [Member] | Forecast [Member]
Subsequent Event [Line Items]
Redemption of preferred stock, shares			388
Preferred stock, redemption price			$ 10,000
Preferred stock redeemed			$ 3,900

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Aggregate dividends declared during the period for each share of common stock outstanding.

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