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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income (loss) $ 139,137 $ 46,925 $ (33,614)
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:      
Provision for loss (gains) on accounts receivable 12,130 467 (2)
Loss on disposal of property, plant and equipment 2,212 1,284 4,321
Share-based compensation 13,883 51,807 24,935
Depreciation and amortization 89,721 73,615 58,517
Write-off and amortization of deferred financing costs 2,167 2,089 4,060
Change in operating lease right of use asset 2,347 1,350 1,549
Deferred income taxes (68,800) 0 0
Inventory obsolescence 0 347 0
Gain on equity investment 0 (9,918) 0
Loss on equity method investment 0 0 1,890
Changes in operating assets and liabilities:      
Accounts receivable (6,879) (12,228) 820
Inventories 3,822 (15,484) (1,207)
Prepaid expenses and other current assets (1,312) 269 (2,249)
Other assets (4,105) (5,063) (4,053)
Accounts payable 1,311 12,484 3,543
Accrued expenses (23,396) 7,811 19,237
Operating lease liability (1,677) (1,467) (1,807)
Net cash flows provided by operating activities 160,561 154,288 75,940
CASH FLOWS FROM INVESTING ACTIVITIES:      
Acquisitions of property, plant and equipment, software and deposits on equipment (148,184) (187,092) (239,093)
Purchase of short-term investments 0 0 (113,441)
Proceeds from maturities of short-term investments 0 0 113,441
Net cash flows used in investing activities (148,184) (187,092) (239,093)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from exercise of options to purchase common stock 2,106 9,138 4,517
Tax withholdings related to net shares settlements of restricted stock units (3,021) (2,595) (1,400)
Principal payments under finance lease obligations (2,120) (1,977) (1,109)
Purchase of capped call options 0 0 (66,211)
Proceeds from issuance of convertible senior notes 0 0 393,518
Debt issuance costs 0 0 (2,026)
Net cash flows (used in) provided by financing activities (3,035) 4,566 327,289
NET CHANGE IN CASH AND CASH EQUIVALENTS 9,342 (28,238) 164,136
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR 268,633 296,871 132,735
CASH AND CASH EQUIVALENTS, END OF PERIOD 277,975 268,633 296,871
SUPPLEMENTAL CASH FLOW INFORMATION:      
Taxes paid 910 193 308
Interest paid, net of amounts capitalized 11,522 10,154 9,303
Operating right-of-use assets obtained in exchange for lease obligations 65,405 1,785 0
NON-CASH FINANCING AND INVESTING ACTIVITIES:      
Property, plant and equipment and software purchases in accounts payable and accrued expenses 9,311 7,760 19,286
Non-cash addition of finance lease to property, plant and equipment 7,236 0 29,187
Tax withholdings related to net shares settlements of restricted stock units in accrued expenses $ 101 $ 746 $ 0