Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 21,537	$ 26,411
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	21,363	22,271
Gain on sale of assets		(411)
Provision for losses on inventories	6,115	4,429
Stock-based compensation expense	10,058	8,588
Provision for doubtful accounts	225	585
Loss on disposal of property and equipment	1,158	370
Deferred income taxes	(897)	(929)
Excess tax benefits from stock-based compensation	(2,596)	(4,403)
Increase (decrease) in cash, net of acquisition and divestiture, due to changes in:
Accounts receivable	(6,950)	(7,576)
Inventories	(15,992)	(20,183)
Prepaid expenses and other assets	(345)	27
Accounts payable	(3,105)	3,763
Accrued payroll and related expenses	(3,497)	2,569
Accrued expenses and other liabilities	816	4,447
Other long-term liabilities	490	(977)
Net cash provided by operating activities	28,380	38,981
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(15,511)	(17,993)
Restricted cash	661	600
Proceeds from divestiture of business		5,030
Acquisition of businesses, net of cash acquired	(7,865)
Refundable amounts related to acquisition of a business	(2,319)
Purchase of investments and marketable securities	(1,139)	(1,414)
Proceeds from the sale or maturity of investments and marketable securities	281	8,509
Net cash used in investing activities	(25,892)	(5,268)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	28,000	4,000
Repayment of long-term debt and obligations under capital leases	(15,012)	(20,200)
Proceeds from short-term borrowings	1,916	5,766
Repayment of short-term borrowings	(6,123)	(5,635)
Purchases of non-controlling interests		(1,863)
Proceeds from the issuance of common stock under employee plans	1,353	4,156
Tax withholding payment related to net share settlement of equity awards	(3,419)	(2,940)
Purchases of the Company's common stock	(27,893)	(4,480)
Excess tax benefits from stock-based compensation	2,596	4,403
Net cash used in financing activities	(18,582)	(16,793)
Impact of foreign exchange rate changes on cash balances	(349)	(1,650)
Net (decrease) increase in cash and cash equivalents	(16,443)	15,270
Cash and cash equivalents at beginning of period	46,883	53,710
Cash and cash equivalents at end of period	30,440	68,980
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	1,498	1,490
Cash paid during the period for income taxes, net	7,003	4,065
Property and equipment accrued in accounts payable	$ 292	$ 123