Financial Information for Subsidiary and Guarantor Parent (Cash Flows) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statement of Cash Flows
Cash flows provided by (used in) operating activities	$ (57.4)	$ (18.2)
Cash provided by (used in) investing activities	(86.2)	(69.0)
Cash provided by (used in) financing activities	(23.0)	(43.1)
Increase (decrease) in cash and cash equivalents	(166.6)	(130.3)
[ParentCompanyMember]
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(25.9)	(12.5)
Cash provided by (used in) investing activities	0	(0.1)
Cash provided by (used in) financing activities	24.6	13.8
Increase (decrease) in cash and cash equivalents	(1.3)	1.2
[SubsidiariesMember]
Statement of Cash Flows
Cash flows provided by (used in) operating activities	20.1	3.1
Cash provided by (used in) investing activities	(74.9)	(51.6)
Cash provided by (used in) financing activities	50.2	5.5
Increase (decrease) in cash and cash equivalents	(4.6)	(43.0)
[NonGuarantorSubsidiariesMember]
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(51.6)	(1.0)
Cash provided by (used in) investing activities	(11.3)	(17.3)
Cash provided by (used in) financing activities	(97.8)	(70.2)
Increase (decrease) in cash and cash equivalents	(160.7)	(88.5)
[ConsolidationEliminationsMember]
Statement of Cash Flows
Cash flows provided by (used in) operating activities	0	(7.8)
Cash provided by (used in) investing activities	0	0
Cash provided by (used in) financing activities	0	7.8
Increase (decrease) in cash and cash equivalents	$ 0	$ 0