CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 03, 2015	Jun. 27, 2014
Cash flows from operating activities:
Net loss	$ (3,651)	$ (42,472)
Adjustments to reconcile net loss to net cash provided by operating activities:
Amortization of intangibles	3,439	12,866
Depreciation	6,930	8,486
Stock-based compensation	8,018	8,368
Loss on impairment of long-term investment	2,505	0
Deferred income taxes, net	0	27,407
Provision for excess and obsolete inventories	843	1,377
Allowance for doubtful accounts, returns and discounts	(713)	600
Excess tax benefits from stock-based compensation	(22)	(304)
Other non-cash adjustments, net	252	847
Changes in assets and liabilities:
Accounts receivable	(1,222)	(5,485)
Inventories	(595)	5,379
Prepaid expenses and other assets	(11,635)	(2,424)
Accounts payable	6,415	2,324
Deferred revenue	9,833	10,873
Income taxes payable	(815)	562
Accrued and other liabilities	(5,994)	(1,625)
Net cash provided by operating activities	13,588	26,779
Cash flows from investing activities:
Purchases of investments	(12,986)	(26,599)
Proceeds from maturities of investments	15,744	30,846
Purchases of property and equipment	(7,505)	(6,479)
Purchases of long-term investments	(85)	0
Net cash used in investing activities	(4,832)	(2,232)
Cash flows from financing activities:
Payments for repurchase of common stock	(12,171)	(54,751)
Proceeds from (repurchases of) common stock issued to employees	6,491	(1,272)
Excess tax benefits from stock-based compensation	22	304
Net cash used in financing activities	(5,658)	(55,719)
Effect of exchange rate changes on cash and cash equivalents	(81)	16
Net increase (decrease) in cash and cash equivalents	3,017	(31,156)
Cash and cash equivalents at beginning of period	73,032	90,329
Cash and cash equivalents at end of period	$ 76,049	$ 59,173