PROVISION FOR INCOME TAXES (Details) (USD $)	3 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012
U.S. and foreign components of income before income taxes [Abstract]
U.S. operations		$ 1,936,000	$ (36,178,000)	$ 18,884,000
Foreign operations		53,491,000	15,396,000	26,211,000
INCOME (LOSS) BEFORE PROVISION FOR (BENEFIT FROM) INCOME TAXES		55,427,000	(20,782,000)	45,095,000
Impairment Charges and Write-off of Assets Related to Closure	58,900,000
Income Tax Benefit, Asset Impairment and Write-off	8,000,000
Income Tax Examination, Interest from Examination	5,700,000
Provision and interest expense net of reversal of unrecognized tax benefits					18,100,000
Current provision:
Federal		(558,000)	9,813,000	7,758,000
State		2,000	(2,083,000)	246,000
Foreign		3,049,000	1,892,000	474,000
Current provision		2,493,000	9,622,000	8,478,000
Deferred provision (benefit):
Federal		(3,633,000)	2,647,000	1,458,000
State		0	3,109,000	845,000
Foreign		(699,000)	(1,756,000)	23,000
Deferred provision (benefit)		(4,332,000)	4,000,000	2,326,000
Total		(1,839,000)	13,622,000	10,804,000
Adjustments to additional paid in capital, benefit from employee stock option activity		1,300,000	1,300,000	2,200,000
Effective income tax rate reconciliation [Abstract]
Provision computed at Federal statutory rate		35.00%	35.00%	35.00%
State tax provision, net of Federal benefit		0.00%	8.90%	0.50%
Business tax credits		(8.10%)	4.90%	(5.70%)
Stock-based compensation		(2.80%)	2.50%	(0.20%)
Foreign income taxed at different rate		(29.50%)	25.90%	(10.90%)
IRS audit settlement		0.00%	(87.20%)	0.00%
Valuation allowance		(0.10%)	(48.40%)	3.40%
Other		2.20%	(7.20%)	1.90%
Total		(3.30%)	(65.60%)	24.00%
Components of deferred income tax asset [Abstract]
Other reserves and accruals		6,893,000	3,391,000
Tax credit carry-forwards		12,453,000	6,205,000
Stock compensation		5,964,000	7,804,000
Capital losses		10,307,000	9,744,000
Net operating loss		1,014,000	710,000
Valuation allowance		(19,271,000)	(15,970,000)
Deferred tax assets, net of valuation allowance		17,360,000	11,884,000
Depreciation		(4,226,000)	(2,758,000)
Acquired intangibles		(4,303,000)	(5,187,000)
Unremitted earnings		(2,432,000)	0
Other		(1,107,000)	(1,427,000)
Deferred tax liabilities		(12,068,000)	(9,372,000)
Net deferred tax asset		5,292,000	2,512,000
Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits [Roll Forward]
Unrecognized Tax Benefits, Balance at beginning of period		10,813,000	34,855,000	29,911,000
Gross Increases for Tax Positions of Current Year		1,881,000	1,110,000	4,944,000
Gross Decreases for Tax Positions of Prior Years		0		0
Gross Increases for Tax Positions of Prior Years			9,344,000
Settlements	(26,900,000)	0	(34,496,000)	0
Lapse of Statute of Limitations		0	0	0
Unrecognized Tax Benefits, Balance at end of period		12,694,000	10,813,000	34,855,000
Unrecognized tax benefits [Abstract]
Undistributed earnings of the Company's foreign subsidiaries		105,000,000
Unrecognized tax benefits		12,694,000	10,813,000	34,855,000
Income tax benefit that would be recorded if unrecognized tax benefits are recognized		10,900,000
Income tax interest and penalties accrued		700,000	600,000
Income tax interest and penalties expense		0
California Taxing Authority [Member]
U.S. and foreign components of income before income taxes [Abstract]
Operating Loss Carryforwards, State and Local		29,000,000
Internal Revenue Service (IRS) [Member]
U.S. and foreign components of income before income taxes [Abstract]
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	42,600,000
Income Tax Provision, Resulting From Examination	44,800,000
Domestic Tax Authority [Member]
U.S. and foreign components of income before income taxes [Abstract]
Income Tax Provision, Resulting From Examination	35,000,000
State and Local Jurisdiction [Member]
U.S. and foreign components of income before income taxes [Abstract]
Income Tax Examination, Interest from Examination	4,100,000
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	2,200,000
Research Tax Credit Carryforward [Member] | Domestic Tax Authority [Member]
U.S. and foreign components of income before income taxes [Abstract]
Tax Credit Carryforward, Amount		8,400,000
Research Tax Credit Carryforward [Member] | State and Local Jurisdiction [Member] | California Taxing Authority [Member]
U.S. and foreign components of income before income taxes [Abstract]
Tax Credit Carryforward, Amount		11,800,000
Research Tax Credit Carryforward [Member] | State and Local Jurisdiction [Member] | New Jersey Division of Taxation [Member]
U.S. and foreign components of income before income taxes [Abstract]
Tax Credit Carryforward, Amount		300,000
Research Tax Credit Carryforward [Member] | Foreign Tax Authority [Member]
U.S. and foreign components of income before income taxes [Abstract]
Tax Credit Carryforward, Amount		$ 2,000,000