Real Estate Loans Receivable (Details) - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Advances on real estate loans receivable:
Investments in new loans	$ 379,604,000	$ 3,493,000
Draws on existing loans	36,984,000	51,384,000
Net cash advances on real estate loans	416,588,000	54,877,000
Receipts on real estate loans receivable:
Loan payoffs	25,656,000	3,950,000
Principal payments on loans	11,686,000	16,991,000
Total receipts on real estate loans	37,342,000	20,941,000
Net advances (receipts) on real estate loans	379,246,000	33,936,000
Change in balance due to foreign currency translation	1,127,000	1,104,000
Net change Real Estate Loans Receivable	380,373,000	35,040,000
Triple Net [Member]
Advances on real estate loans receivable:
Investments in new loans	379,604,000	3,493,000
Draws on existing loans	34,699,000	38,602,000
Net cash advances on real estate loans	414,303,000	42,095,000
Receipts on real estate loans receivable:
Loan payoffs	25,656,000	3,950,000
Principal payments on loans	11,686,000	16,951,000
Total receipts on real estate loans	37,342,000	20,901,000
Net advances (receipts) on real estate loans	376,961,000	21,194,000
Change in balance due to foreign currency translation	1,127,000	1,104,000
Net change Real Estate Loans Receivable	378,088,000	22,298,000
Outpatient Medical [Member]
Advances on real estate loans receivable:
Investments in new loans	0	0
Draws on existing loans	2,285,000	12,782,000
Net cash advances on real estate loans	2,285,000	12,782,000
Receipts on real estate loans receivable:
Loan payoffs	0	0
Principal payments on loans	0	40,000
Total receipts on real estate loans	0	40,000
Net advances (receipts) on real estate loans	2,285,000	12,742,000
Change in balance due to foreign currency translation	0	0
Net change Real Estate Loans Receivable	$ 2,285,000	$ 12,742,000