Reclassifications Schedule of Marketing and General and Administrative Expenses Reclassified (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2012
Reclassification [Abstract]
Payroll and related expenses reclassified from Marketing to General and Administrative	$ 6.0

The amount of a reclassification adjustment made to prior period financial statement amounts.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration