Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, gross	$ 24,765	$ 28,997	$ 30,865	$ 30,270
Unrecognized tax benefits that would impact effective tax rate, if recognized	8,500	7,600	9,200
Accrued interest	3,400	4,700	$ 4,000
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	38,637	$ 0
Edmunds | Federal tax credit carryforward [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	13,000
Edmunds | State tax credit carryforward [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	12,000
Federal NOL carryforward, no expiration [Member] | Edmunds
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	10,000
State NOL carryforward [Member] | Edmunds
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	$ 2,000