Fair Value Measurements and Derivatives - Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Nov. 30, 2023	Feb. 28, 2023
Assets:
Cash and money market funds	$ 10,393	$ 6,134
Mutual funds	909	1,053
Mutual Funds [Member]
Assets:
Mutual funds	909	1,053
Interest Rate Swap [Member]
Assets:
Interest rate swap agreements	$ 153	$ 207
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Level 1 [Member]
Assets:
Cash and money market funds	$ 10,393	$ 6,134
Level 1 [Member] | Mutual Funds [Member]
Assets:
Mutual funds	909	1,053
Level 1 [Member] | Interest Rate Swap [Member]
Assets:
Interest rate swap agreements	0	0
Level 2 [Member]
Assets:
Cash and money market funds	0	0
Level 2 [Member] | Mutual Funds [Member]
Assets:
Mutual funds	0	0
Level 2 [Member] | Interest Rate Swap [Member]
Assets:
Interest rate swap agreements	153	207
Level 3 [Member]
Assets:
Cash and money market funds	0	0
Level 3 [Member] | Mutual Funds [Member]
Assets:
Mutual funds	0	0
Level 3 [Member] | Interest Rate Swap [Member]
Assets:
Interest rate swap agreements	$ 0	$ 0