Leases - Cash Flow Information (Details) $ in Thousands	6 Months Ended
	Aug. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 271,669
Operating cash flows from finance leases	5,160
Operating lease assets obtained in exchange for new operating lease liabilities
Operating lease assets obtained in exchange for new operating lease liabilities	$ 262,315