Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Carrying Value, Fair Value Disclosure [Member]
Fair value of financial instruments [Abstract]
Debt		$ 3,600.0	$ 3,500.0
Capital and financing obligations		2,600.0	2,600.0
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair value of financial instruments [Abstract]
Debt		3,600.0	3,500.0
Capital and financing obligations		$ 2,600.0	$ 2,600.0
Term of residency agreements- minimum		30 days
Term of residency agreements - maximum		1 year
Reclassification [Member]
Prior Period Reclassifications [Line Items]
Facility Operating Expense	$ 5.3