OTHER ACCRUED EXPENSES (Details) (USD $)	Apr. 01, 2012	Jan. 01, 2012
OTHER ACCRUED EXPENSES
Litigation reserve	$ 23,200,000	$ 23,100,000
Accrued warranties, current portion	12,400,000	9,600,000
Accrued payroll and related expenses	11,200,000	11,500,000
Accrued bonuses	4,400,000	6,000,000
Other accrued expenses	10,400,000	14,600,000
Total other accrued expenses	$ 61,631,000	$ 64,754,000