Stock-based Compensation (Details 1) - Stock Appreciation Rights (SARs) [Member] - $ / shares
|
3 Months Ended |
|
May 31, 2019 |
Feb. 28, 2019 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number |
98,184
|
98,184
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price |
$ 44.46
|
$ 44.46
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Number of Shares [Roll Forward] |
|
|
| Granted (shares) |
0
|
|
| Exercised (shares) |
0
|
|
| Forfeited (shares) |
0
|
|
| Exercisable as of May 31, 2019 |
98,184
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument, Weighted Average Grant Date Fair Value [Roll Forward] |
|
|
| Granted, Weighted Average Exercise Price (usd per share) |
$ 0.00
|
|
| Exercised, Weighted Average Exercise Price (usd per share) |
0.00
|
|
| Forfeited, Weighted Average Exercise Price (usd per share) |
0.00
|
|
| Exercisable as of May 31, 2019 |
$ 44.46
|
|