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Defined Pension Benefit Obligations (Defined Contribution Plans) (Details)
$ in Thousands
9 Months Ended
Jun. 30, 2017
USD ($)
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract]  
Cash contributions made during the first nine months of fiscal 2017 $ 13,911
Cash contributions we expect to make during the remainder of fiscal 2017 5,445
Total $ 19,356