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Segment Information (Consolidated Net Sales and Earnings by Segment) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Net sales | $ 524,284 | $ 483,759 | $ 1,435,793 | $ 1,377,611
Interest expense, net | (5,899) | (6,655) | (18,030) | (19,991)
Consolidated earnings before income taxes | 62,468 | 35,497 | 152,168 | 124,370
Total of Reporting Segments [Member] |  |  |  |
Segment earnings (loss) | 79,560 | 51,379 | 201,357 | 172,313
Aerospace [Member] |  |  |  |
Net sales | 274,923 | 272,218 | 765,816 | 754,100
Segment earnings (loss) | 39,357 | 38,949 | 102,195 | 111,740
Energy [Member] |  |  |  |
Net sales | 249,361 | 211,541 | 669,977 | 623,511
Segment earnings (loss) | 40,203 | 12,430 | 99,162 | 60,573
Unallocated Corporate [Member] |  |  |  |
Segment earnings (loss) | $ (11,193) | $ (9,227) | $ (31,159) | $ (27,952)

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