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Leases (Details 1)
$ in Thousands
6 Months Ended
Aug. 31, 2019
USD ($)
Leases [Abstract]  
Cash paid for amounts included in the measurement of operating lease liabilities $ 6,791
Lease assets obtained in exchange for new operating lease liabilities $ 8,970
Weighted-average remaining lease term - operating leases 6 years
Weighted-average discount rate - operating leases 3.70%