Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Apr. 04, 2020
Operating Activities
Net income	$ 13,509	$ 2,244
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property and equipment	4,529	4,183
Amortization of other intangible assets and other assets	11,705	9,827
Amortization of debt discount and debt issuance costs	6,456	3,736
Loss on extinguishment of convertible debt	3,370
Stock-based compensation expense	13,826	15,313
Deferred income taxes	(3,197)	(2,364)
Changes in operating assets and liabilities:
Accounts receivable	(8,530)	1,542
Inventories	(12,626)	4,777
Prepaid expenses and other assets	(13,621)	23,576
Accounts payable	14,116	2,748
Other current liabilities and income taxes	(13,429)	(9,134)
Deferred revenue and returns liability	464	4,114
Other non-current liabilities	(2,066)	(862)
Net cash provided by operating activities	14,506	59,700
Investing Activities
Purchases of marketable securities	(8,251)	(70,910)
Sales and maturities of marketable securities	161,392	126,920
Purchases of property and equipment	(6,176)	(4,135)
Purchases of other assets	(578)	(370)
Net cash provided by investing activities	146,387	51,505
Financing Activities
Proceeds from revolving line of credit		310,000
Payments on debt	(140,572)
Repurchases of common stock		(16,287)
Payment of taxes withheld for vested stock awards	(17,817)	(16,294)
Net cash provided by (used in) financing activities	(158,389)	277,419
Increase in cash and cash equivalents	2,504	388,624
Cash and cash equivalents at beginning of period	202,720	227,146
Cash and cash equivalents at end of period	$ 205,224	$ 615,770