CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Rental income from operating leases	$ 139,365	$ 125,239	$ 128,023
Property operating revenues	101,750	211,104	236,860
Interest income on mortgages and other notes receivable	0	1,322	8,412
Total revenues	241,115	337,665	373,295
Expenses:
Property operating expenses	80,881	174,111	190,165
Asset management fees to advisor	11,914	15,666	18,651
General and administrative	15,098	15,635	17,136
Ground lease and permit fees	11,316	10,341	10,162
Acquisition fees and costs	0	0	664
Other operating expenses	12,078	6,878	5,328
Bad debt expense	1,854	8,536	291
Loan loss provision	0	9,319	3,270
Loss on lease terminations	0	0	8,914
Impairment provisions	8,142	124,873	30,428
Depreciation and amortization	66,792	83,481	98,664
Total expenses	208,075	448,840	383,673
Operating income (loss)	33,040	(111,175)	(10,378)
Other income (expense):
Interest and other income	1,569	2,172	838
Interest expense and loan cost amortization	(11,141)	(26,931)	(57,260)
Loss on extinguishment of debt	(25)	(21,065)	(1,391)
Equity in earnings of unconsolidated entities	1,290	6,153	7,753
Gain on purchase of controlling interest in unconsolidated entity	30,025	0	0
Total other income (expense)	21,718	(39,671)	(50,060)
Income tax benefit (expense)	1,354	(9,778)	0
Income (loss) from continuing operations	56,112	(160,624)	(60,438)
Income (loss) from discontinued operations (includes $3,027 amortization of loss and loss on termination of cash flow hedge for the year ended December 31, 2014)	9,691	204,671	(31,706)
Net income (loss) before gain on sale of real estate and unconsolidated entities	65,803	44,047	(92,144)
Gain on sale of real estate (includes $609 reclassification of cumulative foreign currency translation adjustments for the year ended December 31, 2016)	145	46,594	0
Gain from sale of unconsolidated entities	0	39,252	0
Net income (loss)	$ 65,948	$ 129,893	$ (92,144)
Net income (loss) per share of common stock (basic and diluted)
Continuing operations (in dollars per shares)	$ 0.17	$ (0.23)	$ (0.18)
Discontinued operations (in dollars per shares)	0.03	0.63	(0.10)
Net income (loss) per share (in dollars per shares)	$ 0.20	$ 0.40	$ (0.28)
Weighted average number of shares of common stock outstanding (basic and diluted) (in shares)	325,183	325,183	324,451