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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Apr. 02, 2021
Apr. 03, 2020
Statement of Cash Flows [Abstract]    
Net income $ 1,601 $ 48,612
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 3,227 2,175
Stock-based compensation 34,653 13,982
Non-cash lease expense 1,221 1,174
Deferred taxes (3,388) 10,128
Other, net 6,578 (888)
Changes in operating assets and liabilities:    
Trade receivables, net (17,690) (18,270)
Inventory (2,090) (4,695)
Prepaid expenses and other assets 1,872 (2,863)
Deferred revenue 13,422 8,850
Accounts payable and other liabilities 138 (2,131)
Net cash provided by operating activities 39,544 56,074
Cash flows from investing activities:    
Purchases of property, equipment and other (13,557) (2,961)
Purchases of investments (331,612) (251,505)
Proceeds from maturities and sales of investments 407,424 287,086
Net cash provided by investing activities 62,255 32,620
Cash flows from financing activities:    
Proceeds from issuance of common stock under equity incentive plans 2,791 3,938
Taxes paid related to net share settlement of equity awards (5,441) (1,793)
Net cash (used in) provided by financing activities (2,650) 2,145
Net increase in cash, cash equivalents and restricted cash equivalents 99,149 90,839
Cash, cash equivalents and restricted cash equivalents at beginning of period 320,772 268,137
Cash, cash equivalents and restricted cash equivalents at end of period 419,921 358,976
Non-cash operating activities:    
Right-of-use assets obtained in exchange for lease obligations $ 4,893 $ 576