Stock Compensation - SARs and Option Awards Activity (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares	12 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Feb. 28, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Number of Shares [Roll Forward]
Outstanding at beginning of year (shares)	98,184	148,513	170,139
Exercised (shares)	(2,965)	(47,484)	(19,481)
Forfeited (shares)	(393)	(2,845)	(2,145)
Outstanding at end of year (shares)	94,826	98,184	148,513
Exercisable at end of year (shares)	94,826	98,184	148,513
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at beginning of year, Weighted Average Exercise Price (usd per share)	$ 44.46	$ 43.29	$ 42.02
Exercised, Weighted Average Exercise Price (usd per share)	44.58	40.84	31.94
Forfeited, Weighted Average Exercise Price (usd per share)	43.92	43.92	45.36
Outstanding at end of year, Weighted Average Exercise Price (usd per share)	44.58	44.46	43.29
Exercisable at end of year, Weighted Average Exercise Price (usd per share)	$ 44.58	$ 44.46	$ 43.29