GUARANTOR AND NON-GUARANTOR CONDENSED CONSOLIDATING FINANCIAL STATEMENTS - Additional Information (Detail)	Dec. 31, 2011
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Parent company ownership percentage in Guarantor subsidiaries	100.00%

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant