Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation New Accounting Pronouncements Adopted (Details)

v3.19.2
Basis of Presentation New Accounting Pronouncements Adopted (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Oct. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Net benefit costs reclassified into other income (deductions), net $ (1,425) $ (1,482) $ (3,416) $ (5,162)  
Accounting Standards Update 2016-16          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Cumulative tax adjustment for intra-entity transfers         $ (4,176)
Cost of Sales | Accounting Standards Update 2017-07          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Adoption of ASU 2017-07   714   2,142  
Net benefit costs reclassified into other income (deductions), net   714   2,142  
Selling Expense | Accounting Standards Update 2017-07          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Adoption of ASU 2017-07   226   678  
Net benefit costs reclassified into other income (deductions), net   226   678  
Administrative Expense | Accounting Standards Update 2017-07          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Adoption of ASU 2017-07   485   1,455  
Net benefit costs reclassified into other income (deductions), net   $ 485   $ 1,455  
Retained Earnings | Accounting Standards Update 2016-16          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Cumulative tax adjustment for intra-entity transfers         (4,176)
Other Assets | Accounting Standards Update 2016-16          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Cumulative tax adjustment for intra-entity transfers         $ (4,176)