Segment Information - Summary of Disaggregation of Net Revenue by Geographic Area (Details) - CAD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues From External Customers And Long Lived Assets [Line Items]
Net revenue	$ 117,863	$ 131,374	$ 227,978	$ 267,583
CANADA
Revenues From External Customers And Long Lived Assets [Line Items]
Net revenue	86,012	80,184	160,461	162,796
Germany
Revenues From External Customers And Long Lived Assets [Line Items]
Net revenue	11,247	22,370	23,611	48,476
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Net revenue	8,783	18,225	20,396	38,092
Other
Revenues From External Customers And Long Lived Assets [Line Items]
Net revenue	$ 11,821	$ 10,595	$ 23,510	$ 18,219