Share Capital - Additional Information (Details) $ in Thousands			3 Months Ended		6 Months Ended
	Jun. 06, 2024 USD ($)	Apr. 18, 2024 shares	Sep. 30, 2024 CAD ($) shares	Jun. 30, 2024 CAD ($)	Sep. 30, 2024 CAD ($) shares	Sep. 30, 2023 Equity
Class Of Stock [Line Items]
Sale of common stock | $			$ 92,185	$ 46,291
Number of equity financings | Equity						0
ATM Program
Class Of Stock [Line Items]
Sale of common stock | $	$ 250,000,000,000
Number of units sold			12,058,788		16,805,852
Gross proceed fom sale of common stock | $			$ 92,185		$ 138,476
CBI Exchange
Class Of Stock [Line Items]
Shares issued		17,149,925
Exchangeable shares		17,149,925
CBI Exchange Agreement
Class Of Stock [Line Items]
Exchangeable shares		9,111,549