Principles Of Consolidation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Impaired Long-Lived Assets Held and Used [Line Items]
Assets Held-for-sale, Long Lived	$ 10.1		$ 10.1		$ 7.3
Impairment of Long-Lived Assets Held-for-use	$ 2.0	$ 1.0	$ 2.6	$ 11.5