Derivative Instruments And Hedging Activities (Effect On Earnings And Equity Statements) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012		Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on derivative instruments	$ 129	$ 129	$ 388		$ 388
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on derivative instruments			388		388
Net gain (loss) on derivative instruments, tax effect			(144)		(144)
Net gain (loss) on derivative instruments, after tax			244		244
Reclassification Adjustment on Derivatives Included in Net Income, Tax			144		144
Interest Expense [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustments to income			388	[1]	388	[1]
Interest Rate Swap [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments			(3,000)
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge			(3,000)
Interest Rate Swap [Member] | Interest Expense [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments			(3,009)		1,951
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge			3,034		(1,485)
Amount of gain (loss) recognized in pre-tax income			$ 25		$ 466

[1] The tax effects of the reclassification adjustments were $144 thousand for the nine months ended December 31, 2012 and 2011