Income Taxes - Summary of Reconciliation of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Loss before income taxes	$ (13,900)	$ (108,586)
Income tax at statutory rate	26.50%	26.50%
Computed income tax recovery	$ (3,684)	$ (28,775)
Federal investment tax credit	(4,899)	(4,093)
Accounting charges not deductible for tax purposes	679	1,078
Capital gain income	(13,956)	0
Equity compensation	3,492	2,220
State Taxes	(777)	(37)
Other	(142)	644
Change in valuation allowance	34,434	27,285
Tax (benefit) expense	$ 15,147	$ (1,678)