v2.4.0.8

Supplemental Guarantor Condensed Consolidating Financials - Additional Information (Detail) (Parent Company/Issuer [Member])	1 Months Ended
	Aug. 31, 2012
Parent Company/Issuer [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Ownership Percentage	100.00%

X

- Details

Name:	us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration