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Inventories - Components of Inventories (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Jun. 30, 2019
Inventory Disclosure [Abstract]    
Materials, purchased parts and supplies $ 38,551 $ 37,368
Work in process 11,304 6,021
Finished goods 13,155 3,834
Total $ 63,010 $ 47,223