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Segment Information (Consolidated Net Sales and Earnings by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Net sales | $ 494,810 | $ 524,284 | $ 1,475,678 | $ 1,435,793
Interest expense, net | (5,858) | (5,899) | (16,788) | (18,030)
Consolidated earnings before income taxes | 57,559 | 62,468 | 172,222 | 152,168
Total of Reporting Segments [Member] |  |  |  |
Net sales | 494,810 | 524,284 | 1,475,678 | 1,435,793
Segment earnings (loss) | 76,981 | 79,560 | 224,894 | 201,357
Aerospace [Member] |  |  |  |
Net sales | 288,480 | 274,923 | 825,676 | 765,816
Segment earnings (loss) | 46,362 | 39,357 | 127,783 | 102,195
Energy [Member] |  |  |  |
Net sales | 206,330 | 249,361 | 650,002 | 669,977
Segment earnings (loss) | 30,619 | 40,203 | 97,111 | 99,162
Unallocated Corporate [Member] |  |  |  |
Segment earnings (loss) | $ (13,564) | $ (11,193) | $ (35,884) | $ (31,159)

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