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Basis Of Presentation Basis of Presentation (Impact from adoption of ASU 2017-07 on Operating Profit by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 30, 2019 | Mar. 31, 2018 | Mar. 30, 2019 | Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit | $ 77,854 | $ 45,407 | $ 157,231 | $ 112,834
Deductions from operating profit: |  |  |  |
Non-service pension expense | 3,187 | 1,707 | 6,380 | 3,400
Corporate and other expenses, net | 7,427 | 7,443 | 13,737 | 14,696
Previously Reported |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | 44,271 |  | 110,574
Deductions from operating profit: |  |  |  |
Non-service pension expense |  | 0 |  | 0
Corporate and other expenses, net |  | 8,014 |  | 15,836
ASC 2017-07 | Restatement Adjustment |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | 1,136 |  | 2,260
Deductions from operating profit: |  |  |  |
Non-service pension expense |  | 1,707 |  | 3,400
Corporate and other expenses, net |  | (571) |  | (1,140)
Aircraft Controls |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit | 27,122 | 33,793 | 60,321 | 64,836
Aircraft Controls | Previously Reported |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | 33,480 |  | 64,248
Aircraft Controls | ASC 2017-07 | Restatement Adjustment |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | 313 |  | 588
Space And Defense Controls |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit | 20,504 | 17,042 | 38,977 | 33,515
Space And Defense Controls | Previously Reported |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | 16,841 |  | 33,130
Space And Defense Controls | ASC 2017-07 | Restatement Adjustment |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | 201 |  | 385
Industrial Systems |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit | $ 30,228 | (5,428) | $ 57,933 | 14,483
Industrial Systems | Previously Reported |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | (6,050) |  | 13,196
Industrial Systems | ASC 2017-07 | Restatement Adjustment |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Operating profit |  | $ 622 |  | $ 1,287

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