Schedule Of Components Of Gain On Settlement Of Pre-Existing Relationship (Detail) (Bernz, USD $)	Jul. 01, 2011
Bernz
Business Acquisition [Line Items]
Reserve	$ 14,402,000
Less: Fair value of settlement	(10,000,000)
Settlement gain	$ 4,402,000

Income (expense) and gain (loss) recognized from the settlement of a preexisting relationship between the acquirer and the acquiree.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant