DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended
	Jan. 22, 2021	May 31, 2021	May 31, 2020	Feb. 28, 2021
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Revenue recognized		$ 12.5
Unearned revenue				$ 52.8
Prepaid sales commissions		4.4
Contracted not recognized revenue		144.3		145.1
Allowance for doubtful accounts		3.1		$ 3.7
Foreign transaction exchange gains (losses)		0.1	$ 0.2
Other Assets [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Prepaid sales commissions		$ 2.7
Minimum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Deferred revenue contract in-service life		4 years
Accounts receivable payment period		30 days
Maximum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Deferred revenue contract in-service life		5 years
Accounts receivable payment period		60 days
Accounts receivable payment extended period		90 days
Software-as-a-Service [Member] | Minimum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life		3 years
Software-as-a-Service [Member] | Maximum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life		5 years
Spireon Holdings, L.P. [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Purchase price	$ 8.0