DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Detail) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Net gain (loss) on derivative financial instruments	$ (1,657,000)	$ 3,089,000
Net deferred gains expected to be reclassified out of AOCI over the next 12 months	4,000,000
Notional value of foreign currency forward-exchange contracts	825,000,000
Notional value of foreign currency forward-exchange contracts, maturity date	2017
Foreign currency cash flow hedge contracts, fair value	(9,100,000)
Notional value of outstanding derivative contracts	$ 1,200,000,000