Share-based Compensation (Details 2) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, Cancelled/Expired	$ 9.60
Stock Settled Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years
Stock Settled Stock Appreciation Rights (SSARS) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Rights Outstanding at Beginning of Period	1,103,160
Number of Rights Granted,	158,244
Number of Rights Exercised	(176,181)
Number of Rights, Forfeited	(43,417)
Number of Rights Cancelled/Expired	(3,492)
Number of Rights Outstanding at End of Period	1,103,160	1,038,314.000
Weighted Average Exercise Price Outstanding at Beginning of Period	$ 10.60
Weighted Average Exercise Price Granted,	14.22
Weighted Average Exercise Price Exercised	10.32
Weighted Average Exercise Price, Forfeited	10.80
Weighted Average Exercise Price Outstanding at End of Period	$ 10.60	$ 11.19
Remaining Contractual Term Outstanding at End of Period	5 years 4 months 24 days
Aggregate Intrinsic Value Outstanding at End of Period	$ 3,035
Number of Rights Exercisable at End of Period	529,923
Weighted Average Exercise Price Exercisable at End of Period	$ 10,570,000
Remaining Contractual Term Exercisable at End of Period	4 years 9 months 18 days
Aggregate Intrinsic Value Exercisable at End of Period	$ 3,035