Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Supplemental cash flow information:
Interest paid, net of capitalized interest	$ 171,422	$ 168,165
Income taxes paid	1,213	383
Capitalized interest	3,128	1,698
Supplemental schedule of non-cash investing activities:
Accrued construction costs	56,972	32,236
Settlement of HCRMC Tranche A DRO as consideration for DFL acquisition	91,605
Tenant funded tenant improvements owned by HCP	9,178	572
Supplemental schedule of non-cash financing activities:
Vesting of restricted stock units	248	288
Conversion of non-managing member units into common stock	4,136	1,608
Noncontrolling interest issued in connection with real estate acquisitions		1,306
Other liabilities assumed with real estate acquisitions	1,200	626
Unrealized (losses) on available-for-sale securities and derivatives designated as cash flow hedges, net	$ (705)	$ 2,334