Equity and Accumulated Other Comprehensive Loss, Net (Schedule of Dividends) (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) $ / shares
Series C Preferred Stock
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share) | $ / shares	$ 1.65625
Series C Preferred Stock | March 29, 2019
Dividends Payable [Line Items]
Dividends, preferred stock | $	$ 3,333
Series G Preferred Stock
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share) | $ / shares	$ 1.46875
Series G Preferred Stock | March 29, 2019
Dividends Payable [Line Items]
Dividends, preferred stock | $	$ 3,672
Series H Preferred Stock
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share) | $ / shares	$ 1.84375
Series H Preferred Stock | March 29, 2019
Dividends Payable [Line Items]
Dividends, preferred stock | $	$ 6,730
Series I Preferred Stock
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share) | $ / shares	$ 1.5875
Series I Preferred Stock | March 29, 2019
Dividends Payable [Line Items]
Dividends, preferred stock | $	$ 3,969
Series J Preferred Stock
Dividends Payable [Line Items]
Preferred stock dividend per share amount (in dollars per share) | $ / shares	$ 1.3125
Series J Preferred Stock | March 29, 2019
Dividends Payable [Line Items]
Dividends, preferred stock | $	$ 2,625
Common Stock
Dividends Payable [Line Items]
Common stock dividend per share amount (in dollars per share) | $ / shares	$ 4.32
Common Stock | March 29, 2019
Dividends Payable [Line Items]
Dividends, common stock | $	$ 224,802