Employee Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 2,735	$ 1,063	$ 949
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	75.00%
Defined Contribution Plan, Maximum Annual Bonus Contributions Per Employee, Percent	100.00%
Deferred Compensation Liability, Classified, Noncurrent	$ 6,629	6,357
Cash Surrender Value of Life Insurance	8,115	7,155
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 65	$ 120	$ 86