Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 5,928	$ 23,181
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	23,079	31,570
Loss (gain) on sale of assets	4,517	(6,414)
Provision for losses on inventories	5,610	5,177
Stock-based compensation expense	6,590	6,265
Provision for doubtful accounts	198	301
Loss on disposal of property and equipment	516	233
Loss on extinguishment of debt	3,355
Deferred income taxes	16	1,306
Increase (decrease) in cash, net of acquisition, due to changes in:
Accounts and notes receivable	(6,987)	4,030
Inventories	(3,897)	(3,798)
Prepaid expenses and other assets	(3,938)	133
Accounts payable	329	(1,133)
Accrued payroll and related expenses	(1,123)	(9,384)
Accrued expenses and other liabilities	5,760	2,699
Other long-term liabilities	119	154
Net cash provided by operating activities	40,072	54,320
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(10,972)	(8,297)
Restricted cash	(278)	9,420
Gain on sale of assets		5,373
Business acquisition, net of cash acquired		(8,939)
Purchase of marketable securities	(2,485)	(4,216)
Proceeds from the sale of marketable securities	5,784	2,804
Net cash used in investing activities	(7,951)	(3,855)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	120,000
Debt issuance costs	(1,484)
Repayment of long-term debt and obligations under capital leases	(191,936)	(19,665)
Proceeds from short-term borrowings	4,510	6,220
Repayment of short-term borrowings	(7,642)	(23,882)
Proceeds from the issuance of common stock under employee plans	4,482	2,434
Tax withholding payments related to net share settlement of equity awards	(1,994)	(3,053)
Net cash used in financing activities	(74,064)	(37,946)
Impact of foreign exchange rate changes on cash balances	504	(460)
Net increase (decrease) in cash and cash equivalents	(41,439)	12,059
Cash and cash equivalents at beginning of period	88,767	55,701
Cash and cash equivalents at end of period	47,328	67,760
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	4,171	5,048
Cash paid during the period for income taxes, net	2,637	4,865
Property and equipment accrued in accounts payable	$ 173	$ 211