Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Operating Activities
Net Income	$ 47,092	$ 61,494	$ 29,586
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation of property and equipment	14,766	13,216	12,517
Amortization of other intangible assets and other assets	27,246	27,715	29,131
Amortization of debt discount and debt issuance costs	10,146
Stock-based compensation expense	44,752	39,628	42,791
Income tax shortfall from stock-based awards		(1,671)	(2,028)
Deferred income taxes	(26,452)	(4,087)	(2,136)
Changes in operating assets and liabilities:
Accounts receivable	3,234	46	1,702
Inventories	(13,416)	(6,093)	2,093
Prepaid expenses and other assets	25,266	(3,568)	(870)
Accounts payable	(468)	263	6,662
Other current liabilities and income taxes	61,924	2,879	2,458
Deferred income on shipments to distributors	4,453	9,713	(5,298)
Other non-current liabilities	(9,022)	(10,625)	(11,161)
Net cash provided by operating activities	189,521	128,910	105,447
Investing Activities
Purchases of available-for-sale investments	(636,363)	(185,231)	(107,366)
Sales and maturities of available-for-sale investments	294,452	161,921	171,831
Purchases of property and equipment	(12,252)	(10,927)	(11,268)
Purchases of other assets	(4,960)	(8,801)	(6,399)
Acquisitions of business, net of cash acquired	(15,168)	(6,546)	(96,112)
Net cash used in investing activities	(374,291)	(49,584)	(49,314)
Financing Activities
Proceeds from issuance of long-term debt, net	389,468		81,238
Payments on debt	(72,500)	(5,000)	(94,706)
Repurchases of common stock		(40,543)	(71,448)
Payment of taxes withheld for vested stock awards	(15,753)	(10,561)	(11,372)
Proceeds from the issuance of common stock	11,815	13,299	16,998
Payment of acquisition-related contingent consideration		(9,500)	(4,464)
Net cash provided by (used in) financing activities	313,030	(52,305)	(83,754)
Increase (decrease) in cash and cash equivalents	128,260	27,021	(27,621)
Cash and cash equivalents at beginning of period	141,106	114,085	141,706
Cash and cash equivalents at end of period	269,366	141,106	114,085
Supplemental Disclosure of Cash Flow Information:
Interest paid	3,859	2,222	2,470
Income taxes paid	$ 8,929	11,185	$ 2,157
Supplemental Disclosure of Non-Cash Activity:
Stock issued in business combination		$ 4,181