Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ 19,100,000	$ (19,000,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	134,600,000	101,600,000
Non-cash interest expense	11,100,000	2,300,000
Stock-based compensation expense	8,500,000	10,500,000
Provision for bad debt	900,000	300,000
Asset impairments and loss on disposal	0	13,500,000
Change in operating assets and liabilities:
Rent receivables and other assets	(29,000,000)	(16,900,000)
Accounts payable and accrued expenses	2,600,000	9,900,000
Deferred revenues	(6,200,000)	800,000
Due to affiliates	0	(1,500,000)
Net cash provided by operating activities	141,600,000	101,500,000
Cash flows from investing activities:
Capital expenditures – purchase of fixed assets	(131,100,000)	(17,300,000)
Capital expenditures – other development	(425,400,000)	(140,900,000)
Business acquisition, net of cash acquired	0	(398,400,000)
Changes in restricted cash	1,500,000	0
Net cash used in investing activities	(555,000,000)	(556,600,000)
Cash flows from financing activities:
Issuance of common stock	448,600,000	799,300,000
Stock issuance costs	(1,600,000)	(800,000)
Acquisition of operating partnership units	0	(596,400,000)
Dividends paid	(82,800,000)	(58,300,000)
Borrowings from credit facility	530,000,000	220,000,000
Payments on credit facility	(460,000,000)	0
Proceeds from issuance of debt	0	103,800,000
Payments on capital leases and lease financing arrangements	(6,800,000)	(3,800,000)
Payment of note payable	(1,500,000)	0
Debt issuance costs	(2,100,000)	(5,400,000)
Tax payment upon exercise of equity awards	(13,700,000)	0
Net cash provided by financing activities	410,100,000	458,400,000
Net increase (decrease) in cash and cash equivalents	(3,300,000)	3,300,000
Cash and cash equivalents at beginning of period	14,300,000	36,500,000
Cash and cash equivalents at end of period	11,000,000	39,800,000
Supplemental disclosures
Cash paid for interest, net of amount capitalized	33,400,000	21,400,000
Cash paid for income taxes	1,200,000	2,500,000
Capitalized interest	6,800,000	4,200,000
Non-cash investing and financing activities
Acquisition and development of properties in accounts payable and other liabilities	117,700,000	37,900,000
Dividends payable	33,600,000	23,500,000
Debt issuance costs	$ 0	$ 300,000