CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 261,535	$ 282,442
Short-term investments	492,122	568,426
Total cash, cash equivalents and short-term investments	753,657	850,868
Accounts receivable, net of allowance for credit losses of $0 and $0, respectively (including related party)	21,821	18,874
Inventories	128,048	107,905
Income taxes receivable	23,805	23,672
Government grant receivable	19,273	19,799
Prepaid expenses and other current assets	13,791	10,204
Total current assets	960,395	1,031,322
Non-current assets
Property, plant and equipment, net	1,290,090	1,251,496
Operating lease right-of-use assets	9,139	8,680
Inventories	45,224	19,031
Intangible assets, net	6,772	7,370
Other non-current assets	24,567	15,659
Total non-current assets	1,375,792	1,302,236
Total assets	2,336,187	2,333,558
Current liabilities
Accounts and construction payable	21,726	23,562
Accrued liabilities	74,447	64,727
Current portion of long-term debt	67,434	0
Deferred revenue	79,894	56,880
Other current liabilities	23,366	18,850
Total current liabilities	266,867	164,019
Non-current liabilities
Long-term debt, net of current portion	843,369	908,729
Deferred revenue	45,054	43,120
Operating lease liabilities	6,016	5,798
Deferred government grant	22,029	20,087
Deferred investment tax credit	26,428	25,502
Deferred income taxes	67,309	85,309
Other non-current liabilities	48,565	26,114
Total non-current liabilities	1,058,770	1,114,659
Total liabilities	1,325,637	1,278,678
Commitments and contingencies (Note 13)
Stockholders’ equity:
Preferred stock ($0.0001 par value, 50,000,000 shares authorized, none issued and outstanding in either period)	0	0
Common stock ($0.0001 par value, 450,000,000 shares authorized, 178,715,488 and 178,445,570 shares issued, and 163,465,706 and 163,195,788 shares outstanding, as of June 30, 2025, and December 31, 2024, respectively)	18	18
Additional paid-in capital	970,823	961,434
Retained earnings	266,782	320,302
Accumulated other comprehensive income (loss)	(26)	173
Treasury stock, at cost, 15,249,782 shares for both periods	(227,047)	(227,047)
Total stockholders’ equity	1,010,550	1,054,880
Total liabilities and stockholders’ equity	$ 2,336,187	$ 2,333,558