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Segment Data - Sales and Operating Income (Loss) by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015 | Jun. 30, 2015
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | $ 2,491,939 |  | $ 2,491,939 |  | $ 2,849,529
External sales: |  |  |  |  |
Total sales | 497,837 | $ 638,970 | 1,577,212 | $ 2,009,543 |
Operating income (loss): |  |  |  |  |
Total operating income (loss) | 27,335 | (120,392) | (200,006) | (393,143) |
Interest expense | 7,113 | 7,760 | 20,895 | 23,929 |
Other (income) expense, net | (1,938) | (378) | (1,582) | 32 |
Income (loss) from continuing operations before income taxes | 22,160 | (127,774) | (219,319) | (417,104) |
Industrial [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 1,225,191 |  | 1,225,191 |  | 1,259,270
External sales: |  |  |  |  |
Total sales | 316,372 | 354,810 | 940,588 | 1,104,225 |
Operating income (loss): |  |  |  |  |
Total operating income (loss) | 24,692 | 35,311 | 51,802 | 121,123 |
Infrastructure [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 866,381 |  | 866,381 |  | 1,279,608
External sales: |  |  |  |  |
Total sales | 181,465 | 284,160 | 636,624 | 905,318 |
Operating income (loss): |  |  |  |  |
Total operating income (loss) | 3,748 | (153,100) | (242,417) | (505,799) |
Corporate [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 400,367 |  | 400,367 |  | $ 310,651
Operating income (loss): |  |  |  |  |
Total operating income (loss) | $ (1,105) | $ (2,603) | $ (9,391) | $ (8,467) |

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