Real Estate Loans Receivable (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Advances on real estate loans receivable:
Investments in new loans	$ 8,223	$ 379,604
Draws on existing loans	42,836	36,984
Net cash advances on real estate loans	51,059	416,588
Receipts on real estate loans receivable:
Loan payoffs	209,916	25,656
Principal payments on loans	4,454	11,686
Sub-total	214,370	37,342
Less : Non-cash activity	(46,027)	0
Total receipts on real estate loans	168,343	37,342
Net advances (receipts) on real estate loans	(117,284)	379,246
Change in balance due to foreign currency translation	(8,504)	1,127
Net change Real Estate Loans Receivable	(171,815)	380,373
Triple Net [Member]
Advances on real estate loans receivable:
Investments in new loans	8,223	379,604
Draws on existing loans	42,803	34,699
Net cash advances on real estate loans	51,026	414,303
Receipts on real estate loans receivable:
Loan payoffs	182,613	25,656
Principal payments on loans	4,454	11,686
Sub-total	187,067	37,342
Less : Non-cash activity	(31,014)	0
Total receipts on real estate loans	156,053	37,342
Net advances (receipts) on real estate loans	(105,027)	376,961
Change in balance due to foreign currency translation	(8,504)	1,127
Net change Real Estate Loans Receivable	(144,545)	378,088
Outpatient Medical [Member]
Advances on real estate loans receivable:
Investments in new loans	0	0
Draws on existing loans	33	2,285
Net cash advances on real estate loans	33	2,285
Receipts on real estate loans receivable:
Loan payoffs	27,303	0
Principal payments on loans	0	0
Sub-total	27,303	0
Less : Non-cash activity	(15,013)	0
Total receipts on real estate loans	12,290	0
Net advances (receipts) on real estate loans	(12,257)	2,285
Change in balance due to foreign currency translation	0	0
Net change Real Estate Loans Receivable	$ (27,270)	$ 2,285