Noncontrolling Interest Schedule of Noncontrolling Interest (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		8 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2014
Successor [Member]
Noncontrolling Interest [Line Items]
Portion of net loss	$ 0.1	$ (0.8)	$ (4.0)	$ (0.8)
Portion of net loss	0.1	(1.4)	(7.8)	(1.9)
Distributions			(31.1)	(41.2)
Total Shareholders' Equity/ Parent’s Net Investment
Noncontrolling Interest [Line Items]
Operating partnership units	38.7	21.9	21.9	38.7
Ownership %	59.20%	33.90%	33.90%	59.20%
Total Shareholders' Equity/ Parent’s Net Investment | Successor [Member]
Noncontrolling Interest [Line Items]
Portion of net loss			(7.8)	(1.9)
Distributions			(10.2)	(21.1)
Non- controlling Interest
Noncontrolling Interest [Line Items]
Operating partnership units	26.6	42.6	42.6	26.6
Ownership %	40.80%	66.10%	66.10%	40.80%
Non- controlling Interest | Successor [Member]
Noncontrolling Interest [Line Items]
Portion of net loss			7.8	1.9
Distributions			$ (20.9)	$ (20.1)