Impairment Of Long-Lived Assets And Other Lease Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2013
Impaired Long-Lived Assets Held and Used [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 0.5
Other Lease Charges	1.6
Asset Impairment Charges	0.6
Previously Impaired [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset Impairment Charges	0.3
Initial Impairments [Member] [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset Impairment Charges	$ 0.3