Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flow from operating activities
Net (loss) income	$ (20,000)	$ 8,036
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	101,361	86,340
Amortization of deferred financing costs	2,487	1,818
Amortization of debt discount	2,778	1,946
Deferred income taxes	(1,002)	(216)
Straight-line revenues	(3,629)	(4,322)
Stock-based compensation	1,632	930
Other	124	(9)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	1,014	1,307
Other assets	(1,626)	(252)
Change in fair value of contingent consideration	10,910
Accounts payable, accrued expenses and other liabilities	34,153	26,123
Net cash provided by operating activities	128,202	121,701
Cash flow from investing activities
Acquisition of businesses, net of cash acquired	248	111
Acquisition of ground lease investments	(7,191)	(1,347)
NMS asset acquisition (Note 3)	(64,622)
Capital expenditures	(14,931)	(77)
Net cash used in investing activities	(86,496)	(1,313)
Cash flow from financing activities
Principal payment on debt	(5,270)	(6,044)
Dividends paid	(94,133)	(90,314)
Payments of contingent consideration	(18,791)
Borrowings under revolving credit facility	25,000
Payments under revolving credit facility	(25,000)
Capital lease payments	(672)
Deferred financing costs	(24,418)
Common stock issuance, net of costs	(54)
Net share settlement	(1,690)	(1,266)
Net cash used in financing activities	(145,028)	(97,624)
Effect of exchange rates on cash and cash equivalents	294	78
Net (decrease) increase in cash and cash equivalents	(103,028)	22,842
Cash and cash equivalents at beginning of period	171,754	142,498
Cash and cash equivalents at end of period	68,726	165,340
Non-cash investing and financing activities:
Property and equipment acquired but not yet paid	4,013
Tenant capital improvements	$ 33,824	32,359
Acquisition of businesses through non-cash consideration		$ 974