Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) text tags (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net	$ (5,800,000)	$ 700,000
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net	$ 1,217,000	$ 500,000