UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Cash flows from operating activities:
Net loss	$ (15,751)	$ (9,132)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	34,543	28,984
Amortization of intangible assets	428	474
Stock-based compensation expense, net of amount capitalized	4,798	3,717
Deferred income taxes	(4,108)	(1,119)
Provision for credit losses	433	288
Other, net	1,427	480
Changes in assets and liabilities:
Accounts receivable	904	2,490
Current income taxes	0	164
Operating lease assets and liabilities, net	(18)	(135)
Other assets	298	(682)
Accounts payable	19	992
Other deferrals and accruals	1,398	(5,997)
Net cash provided by operating activities	24,371	20,524
Cash flows from investing activities:
Capital expenditures	(75,821)	(83,236)
Government grants received	11,548	6,929
Proceeds from sale of assets and other	163	47
Net cash used in investing activities	(64,110)	(76,260)
Cash flows from financing activities:
Proceeds from credit facility borrowings	65,000	100,000
Principal payments on long-term debt	0	(2,178)
Payments for debt issuance and amendment costs	(429)	0
Taxes paid for equity award issuances	(1,482)	(787)
Payments for financing arrangements and other	(476)	(24)
Net cash provided by financing activities	62,613	97,011
Net increase in cash and cash equivalents	22,874	41,275
Cash, cash equivalents, and restricted cash, beginning of period	48,204	46,272
Cash, cash equivalents, and restricted cash, end of period	71,078	87,547
Supplemental Disclosures of Cash Flow Information
Interest paid, net of amounts capitalized	(9,741)	(4,262)
Income tax refunds received	$ 0	$ 164