Dispositions (CCP Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Aug. 17, 2015	Dec. 31, 2014
Assets:
Total assets	$ 93,060		$ 2,555,322
Liabilities:
Total liabilities	$ 34,340		237,973
CCP | Spinoff
Assets:
Net real estate investments		$ 2,588,255	2,274,310
Cash and cash equivalents		1,749	2,710
Goodwill		135,446	88,959
Assets held for sale		7,610	8,435
Other assets		15,089	16,596
Total assets		2,748,149	2,391,010
Liabilities:
Accounts payable and other liabilities		217,760	204,359
Liabilities related to assets held for sale		985	1,288
Total liabilities		218,745	205,647
Net assets:		$ 2,529,404	$ 2,185,363