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Revenue and Segment Disclosures Revenue classified by timing of recognition (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
Revenue classified by timing of recognition [Line Items]
Revenues	$ 141.8	$ 143.6	$ 393.1	$ 393.2
Products and services transferred over time
Revenue classified by timing of recognition [Line Items]
Revenues	65.4	62.1	184.1	181.9
Products and services transferred at a point in time
Revenue classified by timing of recognition [Line Items]
Revenues	$ 76.4	$ 81.5	$ 209.0	$ 211.3

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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