STOCK-BASED COMPENSATION (Detail) - Summary of Restricted Stock Units Activity (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2012	Jun. 30, 2011
Restricted stock units settled by delivery of common stock upon vesting			905,338	395,470
Restricted Stock Units (RSUs) [Member]
Awards outstanding	1,457,781	2,448,376	2,448,376
Awards outstanding (in Dollars per share)	$ 0	$ 0	$ 0
Awards outstanding (in Dollars)	$ 2,044		$ 2,044
Awards outstanding	1 year 295 days		1 year 295 days
Awards vested and expected to vest at June 30, 2012			1,224,007
Awards vested and expected to vest at June 30, 2012 (in Dollars per share)	$ 0		$ 0
Awards vested and expected to vest at June 30, 2012 (in Dollars)	1,836		1,836
Awards vested and expected to vest at June 30, 2012	1 year 248 days		1 year 248 days
Awards exercisable at June 30, 2012	0		0
Awards exercisable at June 30, 2012 (in Dollars per share)	$ 0		$ 0
Awards exercisable at June 30, 2012 (in Dollars)	$ 0		$ 0
Awards exercisable at June 30, 2012			0 years
Restricted stock units granted	43,246	199,998	243,244	1,200,341
Restricted stock units granted (in Dollars per share)	$ 0	$ 0	$ 0
Restricted stock units settled by delivery of common stock upon vesting	(22,082)	(883,256)	(905,338)
Restricted stock units settled by delivery of common stock upon vesting (in Dollars per share)	$ 0	$ 0	$ 0
Restricted stock units cancelled	(116,001)	(307,337)	(423,338)
Restricted stock units cancelled (in Dollars per share)	$ 0	$ 0	$ 0
Awards outstanding	1,362,944	1,457,781	1,362,944
Awards outstanding (in Dollars per share)	$ 0	$ 0	$ 0