Quarterly report pursuant to Section 13 or 15(d)

Supplemental Balance Sheet Information - Schedule of supplemental balance sheet information (Details)

v3.19.2
Supplemental Balance Sheet Information - Schedule of supplemental balance sheet information (Details) - USD ($)
Jun. 30, 2019
Oct. 01, 2018
Sep. 30, 2018
Jun. 30, 2018
Balance Sheet Related Disclosures [Abstract]        
Short-term restricted cash included in other current assets $ 600,000   $ 500,000 $ 500,000
Trade accounts receivable reserves 19,100,000   22,200,000  
Accumulated depreciation on property, plant, and equipment 311,100,000   303,800,000  
Inventories:        
Raw materials and components 75,200,000   68,300,000  
Work in process 47,800,000   44,700,000  
Finished goods 63,700,000   59,500,000  
Total inventories $ 186,700,000 $ 170,900,000 $ 172,500,000