Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-qualified deferred compensation asset	$ 6,662	$ 6,083
Non-qualified deferred compensation liability	(4,140)	(6,301)
Designated Derivative Contracts asset	1,365	2,903
Designated Derivative Contracts liability		(2,549)
Contingent consideration for acquisition of business		(20,000)
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-qualified deferred compensation asset	6,662	6,083
Non-qualified deferred compensation liability	(4,140)	(6,301)
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Designated Derivative Contracts asset	$ 1,365	2,903
Designated Derivative Contracts liability		(2,549)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration for acquisition of business		$ (20,000)