CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Cash flows from operating activities:
Net loss	$ (20,297)	$ (33,521)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	30,497	32,352
Amortization of debt issuance costs and discount	1,354	659
Loss on sale or maturity of marketable securities	200	72
Gain on forward contracts	(26)	(4)
Stock-based compensation expense	6,772	7,798
(Gain) Loss on disposal of fixed assets	(61)	314
Gain on sale of business unit	(300)	(2,646)
Equity in net loss of an unconsolidated affiliate, net of tax	493	678
Changes in assets and liabilities:
Accounts receivable, net	12,846	3,524
Inventories	689	(10,847)
Prepaid expenses and other assets	2,822	18
Accounts payable and accrued expenses (includes restructuring)	(13,554)	23,901
Accrued payroll obligations	(1,894)	574
Income taxes payable	(355)	(253)
Deferred income and allowances on sales to sell-through distributors	(7,342)	10,155
Deferred licensing and services revenue	(330)	(117)
Net cash provided by operating activities	11,514	32,657
Cash flows from investing activities:
Proceeds from sales of and maturities of short-term marketable securities	7,200	11,960
Purchases of marketable securities	(7,420)	(2,944)
Capital expenditures	(7,035)	(10,102)
Proceeds from sale of business unit, net of cash sold	300	1,972
Cash paid for a non-marketable equity method investment	(1,000)	0
Cash paid for software licenses	(4,149)	(5,672)
Net cash used in investing activities	(12,104)	(4,786)
Cash flows from financing activities:
Restricted stock unit withholdings	(1,748)	(1,427)
Proceeds from issuance of common stock	2,931	3,326
Repayment of debt	(33,679)	(3,404)
Net cash used in financing activities	(32,496)	(1,505)
Effect of exchange rate change on cash	950	(441)
Net increase in cash and cash equivalents	(32,136)	25,925
Beginning cash and cash equivalents	106,552	84,606
Ending cash and cash equivalents	74,416	110,531
Supplemental cash flow information:
Change in unrealized gain (loss) related to marketable securities, net of tax, included in Accumulated other comprehensive loss	71	27
Income taxes paid, net of refunds	976	4,864
Interest paid	12,094	9,264
Accrued purchases of plant and equipment	$ 2,216	$ 1,585