Operating Segments - Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Aug. 31, 2026	Aug. 31, 2025	Aug. 31, 2026	Aug. 31, 2025
Segment Reporting [Line Items]
Depreciation	$ 24,168	$ 22,372	$ 47,687	$ 44,199
Operating Segments
Segment Reporting [Line Items]
Depreciation	17,959	16,254	35,447	32,036
Operating Segments \| Metal Coatings
Segment Reporting [Line Items]
Depreciation	7,472	6,830	14,738	13,490
Operating Segments \| Precoat Metals
Segment Reporting [Line Items]
Depreciation	10,487	9,424	20,709	18,546
Reconciliation to consolidated income before income taxes
Segment Reporting [Line Items]
Depreciation	$ 6,209	$ 6,118	$ 12,240	$ 12,163

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details