Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Cash flows from operating activities:
Net loss	$ (7,275)	$ (19,711)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	15,296	17,331
Amortization of debt issuance costs and discount	933	241
Loss on sale or maturity of marketable securities	170	0
(Gain) loss on forward contracts	(78)	152
Stock-based compensation expense	3,843	4,556
Equity in net loss of an unconsolidated affiliate, net of tax	339	310
Changes in assets and liabilities:
Accounts receivable, net	33,563	4,072
Inventories	1,393	(6,702)
Prepaid expenses and other assets	1,137	1,457
Accounts payable and accrued expenses (includes restructuring)	(35,029)	17,881
Accrued payroll obligations	(1,706)	(3,448)
Income taxes payable	(1,765)	(101)
Deferred income and allowances on sales to sell-through distributors	(2,720)	6,907
Deferred income and allowances on sales to sell-through distributors	(436)	179
Net cash provided by operating activities	7,665	23,124
Cash flows from investing activities:
Proceeds from sales of and maturities of short-term marketable securities	5,700	5,997
Purchases of marketable securities	(7,420)	0
Capital expenditures	(3,374)	(5,700)
Cash paid for software licenses	(1,617)	(3,362)
Net cash used in investing activities	(6,711)	(3,065)
Cash flows from financing activities:
Restricted stock unit withholdings	(693)	(525)
Proceeds from issuance of common stock	1,144	1,117
Repayment of debt	(10,780)	(875)
Net cash used in financing activities	(10,329)	(283)
Effect of exchange rate change on cash	274	237
Net increase in cash and cash equivalents	(9,101)	20,013
Beginning cash and cash equivalents	106,552	84,606
Ending cash and cash equivalents	97,451	104,619
Supplemental cash flow information:
Change in unrealized gain (loss) related to marketable securities, net of tax, included in Accumulated other comprehensive loss	(43)	(28)
Income taxes paid, net of refunds	222	2,496
Interest paid	5,025	4,671
Accrued purchases of plant and equipment	$ 1,297	$ 1,494