Consolidated statements of cash flows - USD ($)	2 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Oct. 31, 2022	Oct. 31, 2021
Operating activities
Net (loss) income	$ 1,600,000	$ (138,000,000.0)		$ (50,300,000)	$ (70,500,000)
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Stock-based compensation expense	2,100,000	12,700,000		17,500,000	4,000,000.0
Depreciation and amortization	1,300,000	8,900,000		3,700,000	1,600,000
Loss on write off of fixed assets	0	3,900,000		0	0
Foreign exchange (gain) loss	800,000	1,200,000		(1,300,000)	600,000
Fair value (gain) loss on financial instruments	(21,400,000)	(22,100,000)		(67,500,000)	35,200,000
Inventory write downs to net realizable value	1,000,000.0	6,000,000.0		6,400,000	2,900,000
Income tax expense	0	100,000		0	0
Bad debt expense	0	1,200,000	$ 0	0	0
Interest and accretion on convertible debt	2,200,000	7,600,000		12,300,000	1,100,000
Non-cash lease expense	300,000	600,000		900,000	0
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities	(12,100,000)	(117,900,000)		(78,300,000)	(25,100,000)
Changes in working capital items:
Accounts receivable	(2,800,000)	2,500,000		2,600,000	(3,500,000)
Other receivables	(2,200,000)	8,000,000.0		(6,800,000)	(700,000)
Prepayments and deposits	300,000	(1,900,000)		(3,300,000)	(4,800,000)
Inventories	(1,300,000)	(8,700,000)		(12,700,000)	(3,900,000)
Deferred revenue	0	200,000		0	0
Accounts payable	(5,800,000)	8,100,000		7,100,000	7,000,000.0
Accrued liabilities	(17,000,000.0)	9,900,000		14,400,000	5,400,000
Net cash used in operating activities	(40,900,000)	(99,800,000)		(77,000,000)	(25,600,000)
Investing activities
Purchases of property, plant, equipment, and other assets	(18,900,000)	(334,900,000)		(190,100,000)	(21,400,000)
Prepaid construction charges	(18,900,000)	(334,900,000)		(190,100,000)	(21,400,000)
Financing activities
Payments of transaction costs	(600,000)	(7,800,000)		(300,000)	0
Proceeds from reservation fees recorded in deferred revenue	0	5,300,000		0	0
Capital contribution from (payment to) the holders of non-controlling interest in subsidiary	0	(400,000)		300,000	0
Proceeds from private share issuance, net of share issuance costs	0	0		0	21,600,000
Proceeds from public share issuance, net of share issuance costs	0	0		49,700,000	525,300,000
Proceeds from exercise of stock options	0	0		0	200,000
Proceeds from exercise of warrants	0	0		100,000	0
Proceeds from convertible debt, net of issuance cost	0	0		198,700,000	98,400,000
Proceeds from loan payable	0	0		0	10,100,000
Proceeds from government grants	0	0		0	100,000
Repayment of loan payable	0	0		0	(12,500,000)
Net cash (used in) provided by financing activities	(600,000)	(2,900,000)		248,500,000	643,200,000
Net change in cash, cash equivalents and restricted cash	(60,400,000)	(437,600,000)		(18,600,000)	596,200,000
Cash, cash equivalents and restricted cash, beginning of year	578,300,000	517,900,000		596,900,000	700,000
Cash, cash equivalents and restricted cash, end of year	517,900,000	80,300,000	$ 517,900,000	578,300,000	596,900,000
Supplemental non-cash investing activities:
Purchases of property and equipment included in liabilities	48,600,000	87,600,000		7,200,000	2,100,000
Supplemental information:
Interest paid	$ 0	$ 0		$ (200,000)	$ (1,500,000)