v3.7.0.1
Property, Plant, and Equipment - Summary of PPE (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Property, Plant and Equipment [Abstract]      
Land, buildings, and improvements $ 251,030 $ 249,112  
Machinery and equipment 582,105 570,394  
Construction in progress 33,418 35,450  
Property, Plant and Equipment, Gross, Total 866,553 854,956  
Less accumulated depreciation (518,004) (497,547)  
Total $ 348,549 $ 357,409 $ 356,854