INCOME TAXES (Details) (USD $)	3 Months Ended																12 Months Ended
	Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2010		Sep. 30, 2010		Jun. 30, 2010		Mar. 31, 2010		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Jan. 02, 2009	Jan. 02, 2008
Income (loss) before income taxes:
United States																	$ (31,809,000)	$ 1,825,000	$ (91,090,000)
Foreign																	8,960,000	(38,383,000)	21,083,000
Loss before income taxes	(1,508,000)		(5,245,000)		(12,405,000)		(3,691,000)		(3,536,000)		(7,098,000)		(12,909,000)		(13,015,000)		(22,849,000)	(36,558,000)	(70,007,000)
Current tax expense (benefit):
Federal																	627,000	(56,000)	(1,490,000)
State																	48,000	188,000	89,000
Foreign benefit of net operating losses																	(629,000)	(4,211,000)	(636,000)
Other foreign																	2,890,000	6,161,000	1,940,000
Total current tax expense (benefit)																	2,936,000	2,082,000	(97,000)
Deferred tax benefit:
Federal																	0	(767,000)	(7,000)
Other foreign																	(1,994,000)	(919,000)	(1,548,000)
Total deferred tax benefit																	(1,994,000)	(1,686,000)	(1,555,000)
Total provision for (benefit from) income taxes	(2,715,000)	[1]	2,774,000	[1]	(543,000)	[1]	1,426,000	[1]	(2,965,000)	[1]	2,897,000	[1]	(3,000)	[1]	467,000	[1]	942,000	396,000	(1,652,000)
Net cash payments for income taxes																	3,800,000	2,300,000	4,300,000
Reconciliation of Income Tax Provision to Statutory Tax Rate [Abstract]
Statutory rate																	(35.00%)	(35.00%)	(35.00%)
Tax credits																	(9.00%)	(9.00%)	(7.00%)
Foreign operations																	1.00%	32.00%	5.00%
Non-deductible expenses and other																	10.00%	3.00%	2.00%
Increase in valuation allowance																	37.00%	10.00%	33.00%
Effective tax rate																	4.00%	1.00%	(2.00%)
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Unrecognized tax benefits including the impact of penalties and interest	12,900,000								1,700,000								12,900,000	1,700,000	2,300,000	3,700,000
Unrecognized tax benefits that would impact effective tax rate	900,000																900,000			1,400,000
Decreases related to the lapse of applicable statutes of limitations	100,000																100,000
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits at beginning of period							1,400,000								2,000,000		1,400,000	2,000,000			3,100,000
Increases for tax positions taken during a prior period																	13,400,000	0	2,000,000
Increases for tax positions taken during the current period																	0	0	0
Decreases for tax positions taken during a prior period																	(700,000)	(100,000)	(2,600,000)
Decreases related to settlements																	(900,000)	(100,000)	(200,000)
Decreases related to the lapse of applicable statutes of limitations																	(400,000)	(400,000)	(300,000)
Unrecognized tax benefits at end of period	12,800,000								1,400,000								12,800,000	1,400,000	2,000,000		3,100,000
Accrued interest and penalties accrued for uncertain tax positions	$ 100,000								$ 300,000								$ 100,000	$ 300,000	$ 300,000

[1] See Note P, “Income Taxes.”