Share-based Compensation (Details 2) - Stock Settled Stock Appreciation Rights (SSARS) [Member] $ / shares in Units, $ in Thousands	6 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Rights Outstanding at Beginning of Period | shares	1,644,888
Number of Rights Exercised | shares	(63,872)
Number of Rights, Forfeited | shares	(11,430)
Number of Rights Expired | shares	(1,522)
Number of Rights Outstanding at End of Period | shares	1,568,064
Number of Rights Exercisable at End of Period | shares	973,110
Number of Rights Vested and expected to vest at June 30, 2020 | shares	1,568,064
Weighted Average Exercise Price Outstanding at Beginning of Period | $ / shares	$ 21.07
Weighted Average Exercise Price, Exercised | $ / shares	11.64
Weighted Average Exercise Price, Forfeited | $ / shares	18.65
Weighted Average Exercise Price, Expired | $ / shares	14.22
Weighted Average Exercise Price Outstanding at End of Period | $ / shares	21.48
Weighted Average Exercise Price, Exercisable at End of Period | $ / shares	13.82
Weighted Average Exercise Price, Exercisable at End of Period | $ / shares	$ 21.48
Remaining Contractual Term Outstanding at End of Period	4 years 4 months 24 days
Remaining Contractual Term Exercisable at End of Period	3 years 8 months 12 days
Share Based Compensation Arrangement By Share Based Payment Award Vested And Expected To Vest Outstanding Remaining Contractual Term	4 years 4 months 24 days
Aggregate Intrinsic Value Outstanding at End of Period | $	$ 11,674
Aggregate Intrinsic Value Exercisable at End of Period | $	11,214
Aggregate Intrinsic Value Exercisable at End of Period, Vested and expacted | $	$ 11,674