Share Based Awards (Details) (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Outstanding Beginning Balance	1,370,101	1,159,183	988,337
Weighted Average Exercise Price Outstanding Beginning Balance	$ 27.85	$ 30.54	$ 32.09
Weighted Average Remaining Contractual Life Outstanding Beginning Balance	5 years 6 months	5 years 9 months 18 days
Number of Share Granted	469,650	469,000	556,500
Weighted Average Exercise Price Granted	$ 15.97	$ 18.78	$ 27.78
Weighted Average Remaining Contractual Life Granted	7 years 2 months 13 days
Number of Shares Exercised		(111,272)	(56,366)
Weighted Average Exercise Price Exercised		$ 19.78	$ 16.81
Aggregate Intrinsic Value, Exercised		$ 264,000	$ 82,000
Number of Shares Forfeited/Canceled	(203,575)	(146,810)	(329,288)
Weighted Average Exercise Price Forfeited/Canceled	$ 24.85	$ 30.28	$ 31.42
Weighted Average Remaining Contractual Life Forfeited/Canceled	4 years 10 months 24 days
Number of Shares Outstanding Ending Balance	1,636,176	1,370,101	1,159,183
Weighted Average Exercise Price Outstanding Ending Balance	$ 24.82	$ 27.85	$ 30.54
Weighted Average Remaining Contractual Life Outstanding Ending Balance	5 years 6 months	5 years 9 months 18 days
Aggregate Intrinsic Value Outstanding Ending Balance	8,000
Number of Shares Vested and expected to vest	1,533,192
Weighted Average Exercise Price Vested and expected to vest	$ 25.03
Weighted Average Remaining Contractual Life Vested and expected to vest	5 years 5 months 24 days
Aggregate Intrinsic Value Vested and expected to vest	8,000
Number of Shares Exercisable	567,886
Weighted Average Exercise Price Exercisable	$ 30.81
Weighted Average Remaining Contractual Life Exercisable	4 years 1 month 6 days
Aggregate Intrinsic Value Exercisable	0
Compensation expense	3,472,000	2,490,000	2,327,000
Employee Stock Ownership Plan (ESOP), Plan [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Stock Ownership Plan (ESOP), Shares in ESOP	4,000,000
Employee Stock Ownership Plan (ESOP), Shares in ESOP	3,966,391
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate	15.00%
EmployeeSharePurchasePlanPurchasePricePercentage	90.00%
SharePurchaseMaximumLimit	1,500
PurchaseMaximumLimit	25,000
Shares, Issued	33,609
FiscalYear2015ExecutiveCompensationPlan [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
OptionsGranted	105,000
RestrictedPerformanceShares	170,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	390,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 463,000