Guarantors - Cash Flows (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended								11 Months Ended	12 Months Ended
	Jan. 23, 2013	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Consolidating Statements of Cash Flows
Net loss	$ (20.2)	$ (1.2)	$ (5.3)	$ (6.5)	$ (7.2)	$ (11.8)	$ 0.2	$ (3.6)	$ 0.7	$ (15.6)	$ (20.2)	$ (14.5)
Equity loss related to investment in subsidiaries	0.0									0.0	0.0	0.0
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	5.3									89.9	141.5	118.0
Stock-based compensation expense										6.0	14.4	10.3
Non-cash interest expense										4.0	3.4	3.4
Provision for bad debt write off										0.4	0.0	0.8
Loss on extinguishment of debt										1.3	0.0	13.6
Asset impairments and loss on disposal										2.8	13.5	0.0	$ 2.8
Deferred income tax expense, including valuation allowance change										0.6
Other, net	5.9									0.0
Changes in operating assets and liabilities:
Rent receivables and other assets	(9.6)									(15.7)	(23.9)	(37.0)
Accounts payable and accrued expenses	20.5									(14.6)	7.0	6.9
Deferred revenues										(0.1)	5.4	9.8
Due to affiliates	1.5									18.4	(0.9)	(0.2)
Other changes in assets and liabilities	3.9
Net cash provided by operating activities	2.0									77.4	140.2	111.1
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										(48.0)	(17.3)
Capital expenditures – other development	(7.7)									(172.9)	(217.2)	(284.2)
Business acquisition, net of cash acquired											(398.4)
Investment in and loans to subsidiaries										0.0	0.0
Changes in restricted cash	1.9									4.4	7.3	0.0
Intercompany advances, net	0.0
Return of investment										0.0	0.0	0.0
Intercompany contributions/distributions											0.0
Other										(0.2)		0.0
Net cash used in investing activities	(5.8)									(216.7)	(625.6)	(284.2)
Cash flows from financing activities:
Issuance of common stock										360.5	799.5	356.0
IPO costs										(26.6)		(1.3)
Stock issuance costs											(0.8)
Acquisition of operating partnership units											(596.4)	(355.9)
Dividends paid										(31.0)	(80.8)	(50.9)
Intercompany borrowings											0.0	0.0
Intercompany payments												0.0
Borrowings from credit facility											260.0	315.0
Payments on credit facility											(10.0)	(30.0)
Payments on senior notes											0.0
Proceeds from issuance of debt											103.8
Payments on capital lease obligations	(0.6)									(5.3)	(5.9)	(150.2)
Payments on lease financing arrangements										(0.7)		(3.0)
Payment to buyout capital leases										(9.6)		(0.9)
Payment to buyout lease financing arrangements										(10.2)		(12.8)
Payment of debt extinguishment costs											(0.8)
Contributions from/(distributions to) parent, net	0.2									0.0	0.0	0.0
Debt issuance costs										(1.3)	(5.4)	(5.2)
Net cash provided by (used in) by financing activities	(0.4)									275.8	463.2	60.8
Net (decrease) increase in cash and cash equivalents	(4.2)									136.5	(22.2)	(112.3)
Cash and cash equivalents at beginning of period	16.5				36.5				148.8	12.3	36.5	148.8	16.5
Cash and cash equivalents at end of period	12.3	14.3				36.5				148.8	14.3	36.5	148.8
General Partner
Condensed Consolidating Statements of Cash Flows
Net loss	0.0									(0.2)	(0.2)	(0.2)
Equity loss related to investment in subsidiaries	0.0									0.2	0.2	0.2
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	0.0									0.0	0.0	0.0
Stock-based compensation expense										0.0	0.0	0.0
Non-cash interest expense										0.0	0.0	0.0
Provision for bad debt write off										0.0	0.0	0.0
Loss on extinguishment of debt										0.0	0.0	0.0
Asset impairments and loss on disposal										0.0	0.0
Deferred income tax expense, including valuation allowance change										0.0
Other, net	0.0									0.0
Changes in operating assets and liabilities:
Rent receivables and other assets	0.0									0.0	0.0	0.0
Accounts payable and accrued expenses	0.0									0.0	0.0	0.0
Deferred revenues										0.0	0.0	0.0
Due to affiliates	0.0									0.0	0.0	0.0
Other changes in assets and liabilities	0.0
Net cash provided by operating activities	0.0									0.0	0.0	0.0
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										0.0	0.0
Capital expenditures – other development	0.0									0.0	0.0	0.0
Business acquisition, net of cash acquired											0.0
Investment in and loans to subsidiaries										0.0	(2.0)
Changes in restricted cash	0.0									0.0	0.0	0.0
Intercompany advances, net	0.0
Return of investment										0.0	0.0	0.0
Intercompany contributions/distributions											0.0
Other										0.0		0.0
Net cash used in investing activities	0.0									0.0	(2.0)	0.0
Cash flows from financing activities:
Issuance of common stock										0.0	0.0	0.0
IPO costs										0.0		0.0
Stock issuance costs											0.0
Acquisition of operating partnership units											0.0	0.0
Dividends paid										0.0	0.0	0.0
Intercompany borrowings											0.0	0.0
Intercompany payments												0.0
Borrowings from credit facility											0.0	0.0
Payments on credit facility											0.0	0.0
Payments on senior notes											0.0
Proceeds from issuance of debt											0.0
Payments on capital lease obligations	0.0									0.0	0.0	0.0
Payments on lease financing arrangements										0.0		0.0
Payment to buyout capital leases										0.0		0.0
Payment to buyout lease financing arrangements										0.0		0.0
Payment of debt extinguishment costs											0.0
Contributions from/(distributions to) parent, net	0.0									0.0	2.0	0.0
Debt issuance costs										0.0	0.0	0.0
Net cash provided by (used in) by financing activities	0.0									0.0	2.0	0.0
Net (decrease) increase in cash and cash equivalents	0.0									0.0	0.0	0.0
Cash and cash equivalents at beginning of period	0.0				0.0				0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents at end of period	0.0	0.0				0.0				0.0	0.0	0.0	0.0
Parent Guarantor
Condensed Consolidating Statements of Cash Flows
Net loss	0.0									(5.3)	(17.1)	(10.0)
Equity loss related to investment in subsidiaries	0.0									5.3	17.1	10.0
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	0.0									0.0	0.0	0.0
Stock-based compensation expense										0.0	0.0	0.0
Non-cash interest expense										0.0	0.0	0.0
Provision for bad debt write off										0.0	0.0	0.0
Loss on extinguishment of debt										0.0	0.0	0.0
Asset impairments and loss on disposal										0.0	0.0
Deferred income tax expense, including valuation allowance change										0.0
Other, net	0.0									(7.1)
Changes in operating assets and liabilities:
Rent receivables and other assets	0.0									9.4	0.0	0.0
Accounts payable and accrued expenses	0.0									(2.3)	0.0	0.0
Deferred revenues										0.0	0.0	0.0
Due to affiliates	0.0									0.0	0.0	0.0
Other changes in assets and liabilities	0.0
Net cash provided by operating activities	0.0									0.0	0.0	0.0
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										0.0	0.0
Capital expenditures – other development	0.0									0.0	0.0	0.0
Business acquisition, net of cash acquired											0.0
Investment in and loans to subsidiaries										(337.1)	(203.1)
Changes in restricted cash	0.0									0.0	0.0	25.2
Intercompany advances, net	0.0
Return of investment										10.6	62.6	0.0
Intercompany contributions/distributions											0.0
Other										0.0		0.0
Net cash used in investing activities	0.0									(326.5)	(140.5)	25.2
Cash flows from financing activities:
Issuance of common stock										360.5	799.5	356.0
IPO costs										(23.4)		(1.3)
Stock issuance costs											(0.8)
Acquisition of operating partnership units											(596.4)	(355.9)
Dividends paid										(10.6)	(61.0)	(24.0)
Intercompany borrowings											0.0	0.0
Intercompany payments												0.0
Borrowings from credit facility											0.0	0.0
Payments on credit facility											0.0	0.0
Payments on senior notes											0.0
Proceeds from issuance of debt											0.0
Payments on capital lease obligations	0.0									0.0	0.0	0.0
Payments on lease financing arrangements										0.0		0.0
Payment to buyout capital leases										0.0		0.0
Payment to buyout lease financing arrangements										0.0		0.0
Payment of debt extinguishment costs											(0.8)
Contributions from/(distributions to) parent, net	0.0									0.0	0.0	0.0
Debt issuance costs										0.0	0.0	0.0
Net cash provided by (used in) by financing activities	0.0									326.5	140.5	(25.2)
Net (decrease) increase in cash and cash equivalents	0.0									0.0	0.0	0.0
Cash and cash equivalents at beginning of period	0.0				0.0				0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents at end of period	0.0	0.0				0.0				0.0	0.0	0.0	0.0
LP Co-issuer
Condensed Consolidating Statements of Cash Flows
Net loss	(20.2)									(15.6)	(21.9)	(16.7)
Equity loss related to investment in subsidiaries	17.9									(20.9)	(17.8)	(35.1)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	0.0									0.0	0.0	0.0
Stock-based compensation expense										0.0	0.0	0.0
Non-cash interest expense										4.0	3.4	3.4
Provision for bad debt write off										0.0	0.0	0.0
Loss on extinguishment of debt										0.0	0.0	13.6
Asset impairments and loss on disposal										0.0	0.0
Deferred income tax expense, including valuation allowance change										0.0
Other, net	0.2									(13.4)
Changes in operating assets and liabilities:
Rent receivables and other assets	0.0									0.0	0.0	0.4
Accounts payable and accrued expenses	2.1									4.8	16.7	4.7
Deferred revenues										0.0	0.0	0.0
Due to affiliates	0.0									6.8	0.0	0.0
Other changes in assets and liabilities	0.0
Net cash provided by operating activities	0.0									(34.3)	(19.6)	(29.7)
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										0.0	0.0
Capital expenditures – other development	0.0									0.0	0.0	0.0
Business acquisition, net of cash acquired											0.0
Investment in and loans to subsidiaries										(337.1)	(203.1)
Changes in restricted cash	0.0									0.0	0.0	97.3
Intercompany advances, net	0.1
Return of investment										66.5	102.0	180.2
Intercompany contributions/distributions											(348.4)
Other										0.0		(315.0)
Net cash used in investing activities	0.1									(270.6)	(449.5)	(37.5)
Cash flows from financing activities:
Issuance of common stock										337.1	0.0	0.0
IPO costs										0.0		0.0
Stock issuance costs											0.0
Acquisition of operating partnership units											0.0	0.0
Dividends paid										(31.0)	(80.8)	(50.9)
Intercompany borrowings											0.0	0.0
Intercompany payments												0.0
Borrowings from credit facility											260.0	315.0
Payments on credit facility											(10.0)	(30.0)
Payments on senior notes											0.0
Proceeds from issuance of debt											103.8
Payments on capital lease obligations	0.0									0.0	0.0	(150.2)
Payments on lease financing arrangements										0.0		0.0
Payment to buyout capital leases										0.0		0.0
Payment to buyout lease financing arrangements										0.0		(12.8)
Payment of debt extinguishment costs											0.0
Contributions from/(distributions to) parent, net	0.0									0.0	201.5	1.3
Debt issuance costs										(1.3)	(5.4)	(5.2)
Net cash provided by (used in) by financing activities	0.0									304.8	469.1	67.2
Net (decrease) increase in cash and cash equivalents	0.1									(0.1)	0.0	0.0
Cash and cash equivalents at beginning of period	0.0				0.0				0.0	0.1	0.0	0.0	0.0
Cash and cash equivalents at end of period	0.1	0.0				0.0				0.0	0.0	0.0	0.0
Finance Co-issuer
Condensed Consolidating Statements of Cash Flows
Net loss	0.0									0.0	0.0	0.0
Equity loss related to investment in subsidiaries	0.0									0.0	0.0	0.0
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	0.0									0.0	0.0	0.0
Stock-based compensation expense										0.0	0.0	0.0
Non-cash interest expense										0.0	0.0	0.0
Provision for bad debt write off										0.0	0.0	0.0
Loss on extinguishment of debt										0.0	0.0	0.0
Asset impairments and loss on disposal										0.0	0.0
Deferred income tax expense, including valuation allowance change										0.0
Other, net	0.0									0.0
Changes in operating assets and liabilities:
Rent receivables and other assets	0.0									0.0	0.0	0.0
Accounts payable and accrued expenses	0.0									0.0	0.0	0.0
Deferred revenues										0.0	0.0	0.0
Due to affiliates	0.0									0.0	0.0	0.0
Other changes in assets and liabilities	0.0
Net cash provided by operating activities	0.0									0.0	0.0	0.0
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										0.0	0.0
Capital expenditures – other development	0.0									0.0	0.0	0.0
Business acquisition, net of cash acquired											0.0
Investment in and loans to subsidiaries										0.0	0.0
Changes in restricted cash	0.0									0.0	0.0	0.0
Intercompany advances, net	0.0
Return of investment										0.0	0.0	0.0
Intercompany contributions/distributions											0.0
Other										0.0		0.0
Net cash used in investing activities	0.0									0.0	0.0	0.0
Cash flows from financing activities:
Issuance of common stock										0.0	0.0	0.0
IPO costs										0.0		0.0
Stock issuance costs											0.0
Acquisition of operating partnership units											0.0	0.0
Dividends paid										0.0	0.0	0.0
Intercompany borrowings											0.0	0.0
Intercompany payments												0.0
Borrowings from credit facility											0.0	0.0
Payments on credit facility											0.0	0.0
Payments on senior notes											0.0
Proceeds from issuance of debt											0.0
Payments on capital lease obligations	0.0									0.0	0.0	0.0
Payments on lease financing arrangements										0.0		0.0
Payment to buyout capital leases										0.0		0.0
Payment to buyout lease financing arrangements										0.0		0.0
Payment of debt extinguishment costs											0.0
Contributions from/(distributions to) parent, net	0.0									0.0	0.0	0.0
Debt issuance costs										0.0	0.0	0.0
Net cash provided by (used in) by financing activities	0.0									0.0	0.0	0.0
Net (decrease) increase in cash and cash equivalents	0.0									0.0	0.0	0.0
Cash and cash equivalents at beginning of period	0.0				0.0				0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents at end of period	0.0	0.0				0.0				0.0	0.0	0.0	0.0
Guarantor Subsidiaries
Condensed Consolidating Statements of Cash Flows
Net loss	(17.9)									20.9	17.8	35.1
Equity loss related to investment in subsidiaries	0.1									4.5	3.3	3.9
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	5.2									87.1	138.7	115.0
Stock-based compensation expense										6.0	14.4	10.3
Non-cash interest expense										0.0	0.0	0.0
Provision for bad debt write off										0.4	0.0	0.8
Loss on extinguishment of debt										1.3	0.0	0.0
Asset impairments and loss on disposal										2.8	13.5
Deferred income tax expense, including valuation allowance change										0.6
Other, net	5.6									(16.2)
Changes in operating assets and liabilities:
Rent receivables and other assets	(9.6)									(9.9)	(26.1)	(35.3)
Accounts payable and accrued expenses	18.4									0.2	(9.8)	2.1
Deferred revenues										(0.3)	5.3	10.0
Due to affiliates	1.5									18.4	(0.9)	(0.2)
Other changes in assets and liabilities	3.8
Net cash provided by operating activities	1.9									115.8	156.2	141.7
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										(48.0)	(17.3)
Capital expenditures – other development	(7.7)									(172.9)	(216.7)	(283.9)
Business acquisition, net of cash acquired											(398.4)
Investment in and loans to subsidiaries										0.0	(0.4)
Changes in restricted cash	1.9									4.4	7.3	(45.4)
Intercompany advances, net	(0.1)
Return of investment										0.0	(17.9)	0.0
Intercompany contributions/distributions											0.0
Other										(0.2)		0.0
Net cash used in investing activities	(5.9)									(216.7)	(643.4)	(329.3)
Cash flows from financing activities:
Issuance of common stock										0.0	0.0	0.0
IPO costs										(3.2)		0.0
Stock issuance costs											0.0
Acquisition of operating partnership units											0.0	0.0
Dividends paid										(31.0)	(80.8)	(50.9)
Intercompany borrowings											348.4	315.0
Intercompany payments												(180.2)
Borrowings from credit facility											0.0	0.0
Payments on credit facility											0.0	0.0
Payments on senior notes											0.0
Proceeds from issuance of debt											0.0
Payments on capital lease obligations	(0.6)									(4.4)	(5.0)	0.0
Payments on lease financing arrangements										(0.5)		(2.4)
Payment to buyout capital leases										(9.6)		(0.7)
Payment to buyout lease financing arrangements										(10.2)		0.0
Payment of debt extinguishment costs											0.0
Contributions from/(distributions to) parent, net	0.2									295.4	201.5	(6.5)
Debt issuance costs										0.0	0.0	0.0
Net cash provided by (used in) by financing activities	(0.4)									236.5	464.1	74.3
Net (decrease) increase in cash and cash equivalents	(4.4)									135.6	(23.1)	(113.3)
Cash and cash equivalents at beginning of period	15.6				33.5				146.8	11.2	33.5	146.8	15.6
Cash and cash equivalents at end of period	11.2	10.4				33.5				146.8	10.4	33.5	146.8
Non- Guarantors
Condensed Consolidating Statements of Cash Flows
Net loss	(0.1)									(4.5)	(3.3)	(3.9)
Equity loss related to investment in subsidiaries	0.0									0.0	0.0	0.0
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	0.1									2.8	2.8	3.0
Stock-based compensation expense										0.0	0.0	0.0
Non-cash interest expense										0.0	0.0	0.0
Provision for bad debt write off										0.0	0.0	0.0
Loss on extinguishment of debt										0.0	0.0	0.0
Asset impairments and loss on disposal										0.0	0.0
Deferred income tax expense, including valuation allowance change										0.0
Other, net	0.1									0.0
Changes in operating assets and liabilities:
Rent receivables and other assets	0.0									(3.0)	2.2	(2.1)
Accounts payable and accrued expenses	0.0									0.3	0.1	0.1
Deferred revenues										0.2	0.1	(0.2)
Due to affiliates	0.0									0.0	0.0	0.0
Other changes in assets and liabilities	0.1
Net cash provided by operating activities	0.1									(4.2)	1.9	(3.1)
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										0.0	0.0
Capital expenditures – other development	0.0									0.0	(0.5)	(0.3)
Business acquisition, net of cash acquired											0.0
Investment in and loans to subsidiaries										0.0	0.0
Changes in restricted cash	0.0									0.0	0.0	0.0
Intercompany advances, net	0.0
Return of investment										0.0	0.0	0.0
Intercompany contributions/distributions											0.0
Other										0.0		0.0
Net cash used in investing activities	0.0									0.0	(0.5)	(0.3)
Cash flows from financing activities:
Issuance of common stock										0.0	0.0	0.0
IPO costs										0.0		0.0
Stock issuance costs											0.0
Acquisition of operating partnership units											0.0	0.0
Dividends paid										0.0	0.0	0.0
Intercompany borrowings											0.0	0.0
Intercompany payments												0.0
Borrowings from credit facility											0.0	0.0
Payments on credit facility											0.0	0.0
Payments on senior notes											0.0
Proceeds from issuance of debt											0.0
Payments on capital lease obligations	0.0									(0.9)	(0.9)	0.0
Payments on lease financing arrangements										(0.2)		(0.6)
Payment to buyout capital leases										0.0		(0.2)
Payment to buyout lease financing arrangements										0.0		0.0
Payment of debt extinguishment costs											0.0
Contributions from/(distributions to) parent, net	0.0									6.3	0.4	5.2
Debt issuance costs										0.0	0.0	0.0
Net cash provided by (used in) by financing activities	0.0									5.2	(0.5)	4.4
Net (decrease) increase in cash and cash equivalents	0.1									1.0	0.9	1.0
Cash and cash equivalents at beginning of period	0.9				3.0				2.0	1.0	3.0	2.0	0.9
Cash and cash equivalents at end of period	1.0	3.9				3.0				2.0	3.9	3.0	2.0
Eliminations/Consolidations
Condensed Consolidating Statements of Cash Flows
Net loss	18.0									(10.9)	4.5	(18.8)
Equity loss related to investment in subsidiaries	(18.0)									10.9	(2.8)	21.0
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	0.0									0.0	0.0	0.0
Stock-based compensation expense										0.0	0.0	0.0
Non-cash interest expense										0.0	0.0	0.0
Provision for bad debt write off										0.0	0.0	0.0
Loss on extinguishment of debt										0.0	0.0	0.0
Asset impairments and loss on disposal										0.0	0.0
Deferred income tax expense, including valuation allowance change										0.0
Other, net	0.0									36.7
Changes in operating assets and liabilities:
Rent receivables and other assets	0.0									(12.2)	0.0	0.0
Accounts payable and accrued expenses	0.0									(17.6)	0.0	0.0
Deferred revenues										0.0	0.0	0.0
Due to affiliates	0.0									(6.8)	0.0	0.0
Other changes in assets and liabilities	0.0
Net cash provided by operating activities	0.0									0.1	1.7	2.2
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate										0.0	0.0
Capital expenditures – other development	0.0									0.0	0.0	0.0
Business acquisition, net of cash acquired											0.0
Investment in and loans to subsidiaries										674.2	408.6
Changes in restricted cash	0.0									0.0	0.0	(77.1)
Intercompany advances, net	0.0
Return of investment										(77.1)	(146.7)	(180.2)
Intercompany contributions/distributions											348.4
Other										0.0		315.0
Net cash used in investing activities	0.0									597.1	610.3	57.7
Cash flows from financing activities:
Issuance of common stock										(337.1)	0.0	0.0
IPO costs										0.0		0.0
Stock issuance costs											0.0
Acquisition of operating partnership units											0.0	0.0
Dividends paid										41.6	141.8	74.9
Intercompany borrowings											(348.4)	(315.0)
Intercompany payments												180.2
Borrowings from credit facility											0.0	0.0
Payments on credit facility											0.0	0.0
Payments on senior notes											0.0
Proceeds from issuance of debt											0.0
Payments on capital lease obligations	0.0									0.0	0.0	0.0
Payments on lease financing arrangements										0.0		0.0
Payment to buyout capital leases										0.0		0.0
Payment to buyout lease financing arrangements										0.0		0.0
Payment of debt extinguishment costs											0.0
Contributions from/(distributions to) parent, net	0.0									(301.7)	(405.4)	0.0
Debt issuance costs										0.0	0.0	0.0
Net cash provided by (used in) by financing activities	0.0									(597.2)	(612.0)	(59.9)
Net (decrease) increase in cash and cash equivalents	0.0									0.0	0.0	0.0
Cash and cash equivalents at beginning of period	0.0				$ 0.0				$ 0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents at end of period	$ 0.0	$ 0.0				$ 0.0				$ 0.0	$ 0.0	$ 0.0	$ 0.0