Amount of tax expense or benefit on gain (loss), not previously recognized, resulting from the sale of a business component.

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Name:	us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Summary Of Business Segment Data (Parenthetical) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Net loss on disposal of discontinued operations, taxes