Share-based Compensation (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Expirations In Period Weighted Average Exercise Price	$ 6.76
Stock Settled Stock Appreciation Rights (SSARS) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Rights Outstanding at April 1, 2013	683,119
Weighted Average Exercise Price Outstanding at April 1, 2013	$ 7.27
Number of Rights Granted,	119,120
Weighted Average Exercise Price Granted,	$ 12.36
Number of Rights Exercised	(292,576)
Weighted Average Exercise Price Exercised	$ 6.84
Number of Rights, Forfeited	(131,132)
Weighted Average Exercise Price, Forfeited	$ 8.67
Number of Rights Outstanding at December 31, 2013	376,682
Weighted Average Exercise Price Outstanding at December 31, 2013	$ 8.72
Remaining Contractual Term Outstanding at December 31, 2013	5 years 4 months 24 days
Aggregate Intrinsic Value Outstanding at December 31, 2013	$ 1,958
Number of Rights Exercisable at December 31, 2013	124,696
Weighted Average Exercise Price Exercisable at December 31, 2013	$ 7.54
Remaining Contractual Term Exercisable at December 31, 2013	4 years 8 months 27 days
Aggregate Intrinsic Value Exercisable at December 31, 2013	$ 796
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period	(1,849)