Leases Lease Information (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
May 31, 2019 |
May 31, 2018 |
Feb. 28, 2019 |
|
| Leases [Abstract] | |||
| Operating Lease, Weighted Average Remaining Lease Term | 8 years 11 months 5 days | 9 years 2 months 23 days | |
| Operating Lease, Cost | $ 4,266 | $ 3,930 | |
| Operating Lease, Payments | 2,275 | 1,910 | |
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | $ 2,506 | $ 4,046 | |
| Operating Lease, Weighted Average Discount Rate, Percent | 5.10% | 5.13% | |