SHAREHOLDERS' EQUITY (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended			1 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012	Jan. 31, 2012 Share Repurchase Program [Member]	Aug. 31, 2011 Share Repurchase Program [Member]	Dec. 31, 2012 Share Repurchase Program [Member]
Share Repurchase Program [Abstract]
Authorized amount of stock repurchase							$ 40.0	$ 55.0
Increase to existing share repurchase program						15.0
Stock repurchased and retired to date (in shares)								1,200,000
Stock repurchased and retired to date (value)								27.3
Share repurchases yet to be purchased under authorization								27.7
Repurchase of common stock (in shares)	0		0
Dividend Payments [Abstract]
Cash dividend declared (in dollars per share)	$ 1.00	$ 0	$ 1.00	$ 0
Total dividend payout	$ 22.0		$ 22.0
Common Stock Warrants [Abstract]
Warrants outstanding (in shares)	30,000		30,000		30,000
Warrants vested (in shares)	12,000		12,000
Weighted average exercise price (in dollars per share)	$ 3.00		$ 3.00
Intangible asset useful life			10 years
Annual vesting percentage (in hundredths)			20.00%
Warrants term			5 years