Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Sep. 30, 2019
Inventories, net [Abstract]    
Raw materials $ 38,220 $ 35,616
Work in process 79,108 76,297
Finished goods 68,280 68,361
Inventories $ 185,608 $ 180,274