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Revenues Contract Liability (Details) - USD ($) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Aug. 31, 2019 | Aug. 31, 2018 | Feb. 28, 2019 | Feb. 28, 2018
Contract Liability [Abstract] |  |  |  |
Contract with Customer, Liability | $ 23,658 | $ 23,763 | $ 56,928 | $ 22,698
Increase (Decrease) in Contract with Customer, Liability | 18,234 | 21,166 |  |
Contract with Customer, Liability, Revenue Recognized | $ (51,504) | $ (20,101) |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation | The Company expects to recognize revenues of approximately $15.4 million, $5.9 million, $1.2 million and $1.2 million in fiscal 2020, 2021, 2022 and 2023 |  |  |

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