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Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Aug. 31, 2025	Jul. 01, 2025	Feb. 28, 2025
Assets
Goodwill	$ 715,864		$ 703,863
Canton Galvanizing, LLC
Assets
Accounts receivable		$ 1,474
Inventories		1,049
Property, plant and equipment		4,759
Goodwill		10,871
Intangibles and other assets		12,505
Total fair value of assets acquired		30,658
Liabilities
Accounts payable		(237)
Other accrued liabilities		(277)
Total fair value of liabilities assumed		(514)
Total purchase price, net of cash acquired		$ 30,144