Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 26,411	$ 5,928
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	22,271	23,079
Loss (gain) on sale of assets	(411)	4,517
Provision for losses on inventories	4,429	5,610
Stock-based compensation expense	8,588	6,590
Provision for doubtful accounts	585	198
Loss on disposal of property and equipment	370	516
Loss on extinguishment of debt		3,355
Deferred income taxes	(929)	16
Excess tax benefits from stock-based compensation	(4,403)
Increase (decrease) in cash, net of divestiture, due to changes in:
Accounts receivable	(7,576)	(6,987)
Inventories	(20,183)	(3,897)
Prepaid expenses and other assets	27	(3,938)
Accounts payable	3,763	329
Accrued payroll and related expenses	2,569	(1,123)
Accrued expenses and other liabilities	4,447	5,760
Other long-term liabilities	(977)	119
Net cash provided by operating activities	38,981	40,072
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(17,993)	(10,972)
Restricted cash	600	(278)
Proceeds from divestiture of business	5,030
Purchase of marketable securities	(1,414)	(2,485)
Proceeds from the sale or maturity of marketable securities	8,509	5,784
Net cash used in investing activities	(5,268)	(7,951)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	4,000	120,000
Debt issuance costs		(1,484)
Repayment of long-term debt and obligations under capital leases	(20,200)	(191,936)
Proceeds from short-term borrowings	5,766	4,510
Repayment of short-term borrowings	(5,635)	(7,642)
Purchases of non-controlling interests	(1,863)
Proceeds from the issuance of common stock under employee plans	4,156	4,482
Tax withholding payment related to net share settlement of equity awards	(2,940)	(1,994)
Purchases of the Company's common stock	(4,480)
Excess tax benefits from stock-based compensation	4,403
Net cash used in financing activities	(16,793)	(74,064)
Impact of foreign exchange rate changes on cash balances	(1,650)	504
Net increase in cash and cash equivalents	15,270	(41,439)
Cash and cash equivalents at beginning of period	53,710	88,767
Cash and cash equivalents at end of period	68,980	47,328
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	1,490	4,171
Cash paid during the period for income taxes, net	4,065	2,637
Property and equipment accrued in accounts payable	$ 123	$ 173