Revenue and Segment Disclosures Revenue Contract Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2023
Revenue Contract Balances [Line Items]
Short Term Deferred Commission	$ 8.3
Deferred revenue	(5.9)	$ 7.5	$ (29.4)
Accounts Receivable, after Allowance for Credit Loss, Current	173.7	198.7
Deferred revenue, current (note 13)	161.5	148.7
Deferred revenue, non-current	5.6	14.6
Accounts Receivable, Net, Noncurrent	66.3
Long-term Deferred Commission	6.3
Accounts Receivable [Member]
Revenue Contract Balances [Line Items]
Contract with Customer, Asset, Net	240.0	255.1
Increase in contract receivable	668.9
Decrease in contract asset	(684.0)
Increase Decrease In Contract with Customer, Asset, Net - Current and Non-Current	(15.1)
Deferred Revenue
Revenue Contract Balances [Line Items]
Deferred Revenue	167.1	163.3
Deferred Revenue, Additions	528.3
Decrease in deferred revenue due to payment, fulfillment of performance obligations, or other	(524.5)
Deferred revenue	3.8
Deferred commission
Revenue Contract Balances [Line Items]
Capitalized Contract Cost, Net	14.6	$ 15.1
Increase in deferred commission	20.2
Decrease in deferred commission	(20.7)
Net change in deferred commission	$ (0.5)