TREASURY STOCK (Additional Information) (Detail) (USD $)	6 Months Ended	0 Months Ended
Jun. 30, 2013	Oct. 23, 2012 October 2012 Authorization
Accelerated Share Repurchases [Line Items]
Stock repurchase program, authorized amount		$ 75,000,000
Amount available for share repurchase under this latest authorization	$ 75,000,000

Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration