Equity and Accumulated Other Comprehensive Loss, Net (Schedule of Dividends/Distributions) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Apr. 05, 2017	Mar. 31, 2017
March 1, 2017
Dividends Payable [Line Items]
Date dividend/distribution declared		Mar. 01, 2017
Dividend/Distribution payment date		Mar. 31, 2017
Series F Preferred Units
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share/unit)		$ 1.656
Series F Preferred Units | Subsequent Event
Dividends Payable [Line Items]
Redemption price per share (in dollars per share/unit)	$ 25.01840
Preferred Stock, liquidation preference (in dollars per share/unit)	$ 25.00
Accrued and unpaid dividends up to but not including the redemption date	$ 100
Redemption premium	$ 6,300
Series F Preferred Units | March 1, 2017
Dividends Payable [Line Items]
Dividends/Distributions, preferred stock		$ 3,023
Series G Preferred Units
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share/unit)		$ 1.469
Series G Preferred Units | March 1, 2017
Dividends Payable [Line Items]
Dividends/Distributions, preferred stock		$ 3,672
Series H Preferred Units
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share/unit)		$ 1.844
Series H Preferred Units | March 1, 2017
Dividends Payable [Line Items]
Dividends/Distributions, preferred stock		$ 6,730
Series I Preferred Units
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share/unit)		$ 1.588
Series I Preferred Units | March 1, 2017
Dividends Payable [Line Items]
Dividends/Distributions, preferred stock		$ 3,969
Common Stock
Dividends Payable [Line Items]
Common stock dividend per share amount (in dollars per share/unit)		$ 3.72
Common Stock | March 1, 2017
Dividends Payable [Line Items]
Dividends/Distributions, common units		$ 148,358