Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

v3.10.0.1
Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Mar. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 36,442 $ 31,516
Work in process 5,961 7,186
Finished goods 28,764 27,204
Inventories, gross 71,167 65,906
Valuation reserves (2,111) (2,077)
Inventories, net $ 69,056 $ 63,829