Income Per Share (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended	0 Months Ended
	Nov. 30, 2013	Nov. 30, 2013	Sep. 30, 2013	Nov. 29, 2014	Mar. 01, 2014
Conversion of redeemable preference shares
Redemption percentage of the liquidation preference per share			105.00%
Liquidation preference (in dollars per share)			$ 100
Liquidation preference			$ 199,937
Par value of common stock (in dollars per share)			$ 1.00	$ 1	$ 1
Closing price per share (in dollars per share)			$ 4.76
Conversion of Series G and H preferred stock	25,603	25,603
Preferred Stock (Series G and H)
Conversion of redeemable preference shares
Contracted conversion rate (in dollars per share)			$ 5.50
Total common stock shares issuable at contracted conversion rate			34,621,117
Conversion of Series G and H preferred stock			25,603
Diluted earning per share due to conversion of preferred stock (in dollars per share)			$ 0.03
Common stock issued on conversion of preferred stock (in shares)			5,378,883
Common Stock
Conversion of redeemable preference shares
Common stock issued upon redemption of preferred stock (in shares)			40,000,000
Market value of common stock issued upon redemption of preferred stock			$ 190,400