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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Cash flows from operating activities:    
Net income $ 24,643 $ 106,841
Adjustments to reconcile net income to net cash provided by operating activities:    
Acquired in-process research and development 12,613  
Depreciation and amortization 118,849 36,183
Amortization of premiums on marketable securities (14) 786
Provision for excess and obsolete inventory 10,498 3,972
Amortization of inventory fair value step up 107,341  
Amortization of 2025 Note fair value step up 13,315  
Stock-based compensation expense 30,073 17,542
Allowance for doubtful accounts 11,481 1,863
Change in fair value of business acquisition liabilities 12,739 3,280
Change in deferred income taxes (65,275) (11,160)
(Gain)/loss on disposal of assets, net 464 129
Payment of business acquisition-related liabilities (16,965) (1,490)
Net (gain)/loss from foreign currency adjustment 6,558  
(Increase) decrease in:    
Accounts receivable (124,206) (28,237)
Inventories (22,855) (38,658)
Prepaid expenses and other assets (2,001) (2,100)
Increase (decrease) in:    
Accounts payable 11,561 (2,769)
Accrued expenses and other liabilities (28,951) (888)
Income taxes payable/receivable 6,777 3,047
Net cash provided by/(used in) operating activities 106,645 88,341
Cash flows from investing activities:    
Purchases of marketable securities (12,174) (81,381)
Maturities of marketable securities 21,709 159,328
Sales of marketable securities 7,404 21,788
Purchases of property and equipment (56,366) (33,859)
Acquisition of businesses, net of cash acquired and purchases of intangible and other assets (17,535) (2,662)
Net cash provided by/(used in) investing activities (56,962) 63,214
Cash flows from financing activities:    
Payment of business acquisition-related liabilities (33,921) (4,034)
Net proceeds from exercise of stock options 17,651 8,058
Payments related to tax withholdings for share-based compensation (5,955)  
Repurchase of common stock (84,787)  
Net cash provided by/(used in) financing activities (107,012) 4,024
Effect of foreign exchange rates on cash 461 407
Net increase/(decrease) in cash and cash equivalents (56,868) 155,986
Cash and cash equivalents at beginning of period 467,292 150,466
Cash and cash equivalents at end of period 410,424 306,452
Supplemental disclosures of cash flow information:    
Income taxes paid, net 71,586 38,979
Non-cash investing and financing activities:    
Accrued purchases of property and equipment $ 9,508 $ 5,366