Segment and Geographical Information - Additional Information (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2026 CAD ($) segment	Mar. 31, 2025 CAD ($) segment
Disclosure of major customers [line items]
Number of reportable segments \| segment	3	3
Number of operating segments \| segment	3	3
Revenues	$ 477,388	$ 473,481
Accounts receivable and other receivables	76,489	95,270
One customer \| Canada
Disclosure of major customers [line items]
Accounts receivable and other receivables	$ 12,105	$ 11,171
One customer \| Canada \| Revenue Benchmark \| Customer Concentration Risk
Disclosure of major customers [line items]
Concentration risk percentage	10.00%
One customer \| Canada \| Accounts Receivable and Other Receivables Benchmark \| Customer Concentration Risk
Disclosure of major customers [line items]
Concentration risk percentage	10.00%	10.00%
Two Customers \| Canada
Disclosure of major customers [line items]
Revenues		$ 53,614
Two Customers \| Canada \| Revenue Benchmark \| Customer Concentration Risk
Disclosure of major customers [line items]
Concentration risk percentage		10.00%