Capital Structure (Details) (USD $)	9 Months Ended
	Nov. 30, 2014	Feb. 28, 2014
Capital Unit [Line Items]
Preferred stock, par value	$ 0.01	0.01
Preferred stock, shares authorized	1,500,000	1,500,000
Preferred stock, shares outstanding	0	0
Preferred Stock, Liquidation Preference Per Share	$ 50
Treasury stock, shares	2,129,455	1,815,272
Preferred Stock [Member]
Capital Unit [Line Items]
Preferred stock, par value	$ 50.00
Preferred stock, shares authorized	50,000	50,000
Preferred stock, shares outstanding	0	0
Preferred Stock, Voting Rights	0
Series A Preferred Stock [Member]
Capital Unit [Line Items]
Preferred stock, par value	$ 0.01
Preferred stock, shares authorized	1,500,000	1,500,000
Preferred stock, shares outstanding	0	0
Preferred Stock, Voting Rights	0
Common Class A [Member]
Capital Unit [Line Items]
Class A Common stock, par value	$ 0.01	0.01
Common Stock, Shares Authorized	60,000,000	60,000,000
Common Stock, Shares, Outstanding	21,863,785	22,172,968
Common Stock, Voting Rights	1
Common Class B [Member]
Capital Unit [Line Items]
Class A Common stock, par value	$ 0.01	0.01
Common Stock, Shares Authorized	10,000,000	10,000,000
Common Stock, Shares, Outstanding	2,260,954	2,260,954
Common Stock, Voting Rights	10
Treasury Stock [Member]
Capital Unit [Line Items]
Treasury stock, shares	2,129,455	1,815,272