Supplemental Cash Flow Disclosures (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Supplemental Disclosures:
Cash paid for interest	$ 150,107	$ 179,318
Cash paid for income taxes	15,846	6,670
Non-cash investing and financing activities:
Accrued capital expenditures and real estate developments	4,059	1,313
Accrued deferred financing costs	2,696	0
Accrued distributions	5,879	0
Mortgage note payable relieved by foreclosure	2,450	53,798
Mortgage notes payable assumed in real estate disposition	$ 55,000	$ 24,000