Derivative Instruments (Details 1) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Derivative [Line Items]
Derivative Gain Loss On Derivative Net	$ 0	$ 58,427,000	[1]
Interest Rate Swap [Member]
Derivative [Line Items]
Gain (loss) on interest rate swaps recalssified from AOCI into income (effective portion)	(483,000)	(466,000)
Foreign Exchange Contract [Member]
Derivative [Line Items]
Gain (loss) on forward exchange contracts recognized in income.	(1,327,000)	2,747,000
Gain on Release of cumulative translation adjustment related to net investment hedge of an equity investment	$ (2,739,000)	$ 184,051,000

[1] (1) In April 2011, we completed the acquisition of substantially all of the real estate assets of privately-owned Genesis Healthcare Corporation. In conjunction with this transaction, we received the option to acquire an ownership interest in Genesis Healthcare. In February 2015, Genesis Healthcare closed on a transaction to merge with Skilled Healthcare Group to become a publicly traded company which required us to record the value of the derivative asset due to the net settlement feature.