Real Property Acquisitions and Development (Details 1) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016		Mar. 31, 2015
Triple Net [Member]
Estimated Fair Value of Allocated Purchase Price of Asset and Liabilities
Land and land improvements		$ 15,331	[1]	$ 22,983
Buildings and improvements		114,235	[1]	239,728
Acquired lease intangibles		1,623	[1]	799
Receivables and other assets		0	[1]	7
Total assets acquired		131,189	[1]	263,517
Accrued expenses and other liabilities		(809)	[1]	(732)
Total liabilities assumed		(809)	[1]	(732)
Non-cash acquisition related activity		(28,621)	[1]	(357)
Cash disbursed for acquisitions		101,759	[1]	262,428
Construction in progress additions		43,835	[1]	45,360
Less: Capitalized Interest		(1,684)	[1]	(1,756)
Less: Foreign currency translation		(583)	[1]	(642)
Cash disbursed for construction in progress		41,568	[1]	42,962
Capital improvements to existing properties		7,438	[1]	11,557
Total cash invested in real property		150,765	[1]	316,947
Triple Net [Member] | Preliminary [Member]
Estimated Fair Value of Allocated Purchase Price of Asset and Liabilities
Total cash invested in real property		115,875
Senior housing - operating [Member]
Estimated Fair Value of Allocated Purchase Price of Asset and Liabilities
Land and land improvements		3,440	[2]	86,184
Buildings and improvements		48,218	[2]	1,016,426
Acquired lease intangibles		1,942	[2]	62,838
Restricted cash		0	[2]	3,820
Receivables and other assets		36	[2]	23,014
Total assets acquired	[3]	53,636	[2]	1,192,282
Secured debt		0	[2]	(208,960)
Accrued expenses and other liabilities		(11)	[2]	(16,164)
Total liabilities assumed		(11)	[2]	(225,124)
Noncontrolling interests		(549)	[2]	(83,194)
Cash disbursed for acquisitions		53,076	[2]	883,964
Construction in progress additions		4,033	[2]	4,193
Less: Capitalized Interest		(565)	[2]	(394)
Less: Foreign currency translation		(1,107)	[2]	(1,472)
Cash disbursed for construction in progress		2,361	[2]	2,327
Capital improvements to existing properties		16,808	[2]	11,632
Total cash invested in real property		72,245	[2]	897,923
Cash Acquired from Acquisition		113		1,667
Senior housing - operating [Member] | Preliminary [Member]
Estimated Fair Value of Allocated Purchase Price of Asset and Liabilities
Total cash invested in real property		53,636
Outpatient Medical [Member]
Estimated Fair Value of Allocated Purchase Price of Asset and Liabilities
Land and land improvements		0	[4]	47,019
Buildings and improvements		17,637	[4]	307,072
Acquired lease intangibles		0	[4]	511
Total assets acquired	[5]	17,637	[4]	354,602
Accrued expenses and other liabilities		(990)	[4]	0
Total liabilities assumed		(990)	[4]	0
Cash disbursed for acquisitions		16,647	[4]	354,602
Construction in progress additions		28,934	[4]	16,421
Less: Capitalized Interest		(788)	[4]	(237)
Less: Accruals		(5,336)	[4]	(1,921)
Cash disbursed for construction in progress		22,810	[4]	14,263
Capital improvements to existing properties		10,779	[4]	6,639
Total cash invested in real property		50,236	[4]	$ 375,504
Outpatient Medical [Member] | Preliminary [Member]
Estimated Fair Value of Allocated Purchase Price of Asset and Liabilities
Total cash invested in real property		$ 17,637

[1] (1) Includes acquisitions with an aggregate purchase price of $115,875,000 for which the allocation of the purchase price consideration is preliminary and subject to change.

[2] (1) Includes acquisitions with an aggregate purchase price of $53,636,000 for which the allocation of the purchase price consideration is preliminary and subject to change.

[3] (2) Excludes $113,000 and $1,677,000 of cash acquired during the three months ended March 31, 2016 and 2015, respectively.

[4] (1) Includes acquisitions with an aggregate purchase price of $17,637,000 for which the allocation of the purchase price consideration is preliminary and subject to change.

[5] (2) Represents non-cash consideration accruals for amounts to be paid in future periods relating to properties that converted in the periods noted above.