Derivative Instruments (Details) - USD ($)	12 Months Ended
	Feb. 22, 2019	Feb. 28, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 124,600,000	$ 117,600,000
Treasury Lock [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 400
Derivative, Fixed Interest Rate	3.10%
Loss on Derivative Instruments, Pretax	$ 13,000,000.0