Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Property, Plant and Equipment, Net [Abstract]
Land and land improvements	$ 6,585	$ 4,583
Buildings	41,536	42,864
Machinery, equipment, and leasehold improvements	221,569	204,043
Construction in progress	10,543	10,463
Property, plant, and equipment	280,233	261,953
Less accumulated depreciation	(167,205)	157,163
Net property, plant, and equipment	$ 113,028	$ 104,790