Equity and Equity-Based Compensation - Preferred Shares Tendered and Common Shares Issued (Details) - shares shares in Thousands		3 Months Ended
	Nov. 25, 2020	Mar. 31, 2021	Mar. 31, 2020
Preferred Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			4,274
Common Stock
Class of Stock [Line Items]
Shares Tendered and Issued		(29,436)
Common Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			29,436
Preferred Stock, Series D
Class of Stock [Line Items]
Preferred stock percentage	8.45%	8.45%
Preferred Stock, Series D | Preferred Stock
Class of Stock [Line Items]
Shares Tendered and Issued		112
Preferred Stock, Series D | Preferred Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			112
Preferred Stock, Series D | Common Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			787
Preferred Stock, Series F
Class of Stock [Line Items]
Preferred stock percentage	7.375%	7.375%
Preferred Stock, Series F | Preferred Stock
Class of Stock [Line Items]
Shares Tendered and Issued		853
Preferred Stock, Series F | Preferred Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			853
Preferred Stock, Series F | Common Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			5,704
Preferred Stock, Series G
Class of Stock [Line Items]
Preferred stock percentage	7.375%	7.375%
Preferred Stock, Series G | Preferred Stock
Class of Stock [Line Items]
Shares Tendered and Issued		1,251
Preferred Stock, Series G | Preferred Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			1,251
Preferred Stock, Series G | Common Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			8,980
Preferred Stock, Series H
Class of Stock [Line Items]
Preferred stock percentage		7.50%
Preferred Stock, Series H | Preferred Stock
Class of Stock [Line Items]
Shares Tendered and Issued		667
Preferred Stock, Series H | Preferred Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			667
Preferred Stock, Series H | Common Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			4,817
Preferred Stock, Series I
Class of Stock [Line Items]
Preferred stock percentage		7.50%
Preferred Stock, Series I | Preferred Stock
Class of Stock [Line Items]
Shares Tendered and Issued		1,391
Preferred Stock, Series I | Preferred Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			1,391
Preferred Stock, Series I | Common Stock | Privately Negotiated Exchange Agreements
Class of Stock [Line Items]
Shares Tendered and Issued			9,148