Common stock and additional paid-in capital - Schedule of Restricted Stock Activity (Details) - Restricted share units - $ / shares	2 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Number of RSUs
Beginning balance (in shares)	2,048,037	2,000,680	716,763	87,084
Granted (in shares)	0	9,541,333	1,703,966	1,021,955
Vested and settled (in shares)	(42,534)	(827,692)	(317,619)	(392,276)
Forfeited/cancelled/expired (in shares)	(4,823)	(855,240)	(55,073)	0
Ending balance (in shares)	2,000,680	9,859,081	2,048,037	716,763
Weighted average share price on grant
Beginning balance (in dollars per share)	$ 8.79	$ 8.69	$ 10.93	$ 1.07
Granted (in dollars per share)	0	1.98	8.38	8.29
Vested and settled (in dollars per share)	13.20	8.70	11.22	1.87
Forfeited/cancelled/expired (in dollars per share)	10.36	6.13	9.98	0
Ending balance (in dollars per share)	$ 8.69	$ 2.42	$ 8.79	$ 10.93