Amount of valuation reserve for inventory.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 330
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.BB)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480581/330-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Name:	us-gaap_InventoryValuationReserves
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Inventories - Summary of Additional Information (Detail) - CAD ($) $ in Thousands	Mar. 28, 2026	Mar. 29, 2025	Mar. 30, 2024	Mar. 25, 2023	Mar. 26, 2022
Inventory [Line Items]
Inventory Valuation Reserves	$ 994	$ 753	$ 1,207
Shrink And Damage Reserves [Member]
Inventory [Line Items]
Inventory Valuation Reserves	$ 200	$ 100		$ 200	$ 300