Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Supplemental Balance Sheet Information - Schedule of supplemental balance sheet information (Details) - USD ($)
Mar. 31, 2019
Oct. 01, 2018
Sep. 30, 2018
Mar. 31, 2018
Balance Sheet Related Disclosures [Abstract]        
Short-term restricted cash included in other current assets $ 800,000   $ 500,000.0 $ 500,000
Trade accounts receivable reserves 21,000,000   22,200,000  
Accumulated depreciation on property, plant, and equipment 310,600,000   303,800,000  
Inventories:        
Raw materials and components 71,300,000   68,300,000  
Work in process 49,500,000   44,700,000  
Finished goods 62,200,000   59,500,000  
Total inventories $ 183,000,000 $ 170,900,000 $ 172,500,000