Stock-based Compensation (Details 1) - Stock Appreciation Rights (SARs) [Member]	6 Months Ended
	Aug. 31, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Number of Shares [Roll Forward]
Outstanding as of February 28, 2015 | shares	376,982
Granted (shares) | shares	0
Exercised (shares) | shares	(18,205)
Forfeited (shares) | shares	(4,078)
Outstanding as of August 31, 2015 | shares	354,699
Exercisable as of August 31, 2015 | shares	245,779
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding as of February 28, 2015	$ 31.27
Granted, Weighted Average Exercise Price (usd per share)	0.00
Exercised, Weighted Average Exercise Price (usd per share)	24.34
Forfeited, Weighted Average Exercise Price (usd per share)	44.42
Outstanding as of August 31, 2015	31.48
Exercisable as of August 31, 2015	$ 25.75