v3.25.3
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 28, 2025
Sep. 29, 2024
Cash flows from operating activities:    
Net income $ 81,778 $ 77,825
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Stock-based compensation expense 34,649 39,367
Depreciation of property, plant, and equipment 15,521 15,904
(Gain) loss on disposal of property, plant, and equipment 6 0
Amortization of intangible assets 7,945 8,926
Excess and obsolete inventory charges 2,582 1,968
Fair value adjustment on acquired inventories 0 1,224
Amortization of discounts or premiums on investments (439) 437
Realized (gain) loss on sale of investments (150) 8
Change in deferred income taxes 37,741 (13,440)
Accounts receivable (9,414) (43,669)
Unbilled revenue (13,816) 298
Inventories 11,878 3,424
Prepaid expenses and other current assets 8,855 (1,420)
Accounts payable 6,927 9,567
Accrued expenses 10,529 5,342
Accrued income taxes (23,238) (11,060)
Deferred revenue and customer deposits (1,500) (1,703)
Other 758 4,679
Net cash provided by (used in) operating activities 170,612 97,677
Cash flows from investing activities:    
Purchases of investments (249,471) (649,020)
Maturities and sales of investments 303,242 622,240
Purchases of property, plant, and equipment (6,147) (12,970)
Net payments related to business acquisitions 0 (1,444)
Net cash provided by (used in) investing activities 47,624 (41,194)
Cash flows from financing activities:    
Net payments from issuance of common stock under stock plans (2,152) (205)
Repurchase of common stock (126,233) (23,841)
Payment of excise tax on prior year common stock repurchases (388) 0
Payment of dividends (40,424) (38,619)
Net cash provided by (used in) financing activities (169,197) (62,665)
Effect of foreign exchange rate changes on cash and cash equivalents 10,765 602
Net change in cash and cash equivalents 59,804 (5,580)
Cash and cash equivalents at beginning of period 186,094 202,655
Cash and cash equivalents at end of period $ 245,898 $ 197,075