Summary of Significant Accounting Policies (Details)	12 Months Ended
Feb. 28, 2021 USD ($) segment	Feb. 29, 2020 USD ($)	Feb. 28, 2019 USD ($)
Business Acquisition [Line Items]
Asset impairment charges	$ 13,700,000	$ 9,200,000	$ 800,000
Goodwill, impairment loss	$ 0	0	0
Number of operating segments \| segment	2
Contract liabilities	$ 16,138,000	18,418,000	56,928,000
Restricted cash	900,000	100,000
Capital Expenditures Incurred but Not yet Paid	$ 1,500,000	$ 2,400,000	$ 1,000,000.0
Minimum
Business Acquisition [Line Items]
Useful life	2 years
Maximum
Business Acquisition [Line Items]
Useful life	19 years

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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