CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Rental income	$ 50,756	$ 47,836	$ 154,003	$ 142,502
Operating expense reimbursements	2,495	2,416	7,398	6,787
Total revenues	53,251	50,252	161,401	149,289
Expenses:
Property operating	4,201	3,329	13,390	10,695
Operating fees to related parties	4,862	4,902	14,638	10,211
Acquisition and transaction related	2,479	4,680	2,377	5,977
Listing fees	0	0	0	18,503
Vesting of Class B Units	0	0	0	14,480
Change in fair value of listing note	0	(1,050)	0	3,380
General and administrative	1,714	2,040	5,298	5,734
Equity based compensation	1,293	1,917	2,407	2,435
Depreciation and amortization	23,482	22,949	71,050	66,152
Total expenses	38,031	38,767	109,160	137,567
Operating income	15,220	11,485	52,241	11,722
Interest expense	(8,914)	(9,041)	(30,117)	(24,799)
Income from investments	0	8	0	15
Realized losses on investment securities	0	(66)	0	(66)
Gains on dispositions of real estate investments	1,320	0	1,320	0
Gains on derivative instruments	375	2,310	3,856	2,785
Unrealized gains on undesignated foreign currency advances and other hedge ineffectiveness	1,459	1,505	5,613	2,445
Unrealized losses on non-functional foreign currency advances not designated as net investment hedges	0	0	0	(2,935)
Other income (expense)	4	(10)	21	15
Total other expense, net	(5,756)	(5,294)	(19,307)	(22,540)
Net income (loss) before income tax	9,464	6,191	32,934	(10,818)
Income tax expense	(448)	(703)	(1,428)	(3,646)
Net income (loss)	9,016	5,488	31,506	(14,464)
Non-controlling interest	(73)	(56)	(312)	87
Net income (loss) attributable to stockholders	$ 8,943	$ 5,432	$ 31,194	$ (14,377)
Earnings Per Share [Abstract]
Basic and diluted net income per share attributable to stockholders (usd per share)	$ 0.05	$ 0.03	$ 0.18	$ (0.08)
Basic and diluted weighted average shares outstanding (shares)	169,390,187	168,948,345	169,092,853	176,124,355