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Inventories - Components of Inventories (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Jun. 30, 2021
Inventory Disclosure [Abstract]    
Materials, purchased parts and supplies $ 57,047 $ 52,615
Work in process 15,439 11,353
Finished goods 14,102 15,728
Total $ 86,588 $ 79,696