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Segment Data - Sales and Operating Income (Loss) by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Jun. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | $ 2,254,781 |  | $ 2,254,781 |  | $ 2,362,783
External sales: |  |  |  |  |
Total sales | 487,573 | $ 524,021 | 964,713 | $ 1,079,376 |
Operating income (loss): |  |  |  |  |
Total operating income (loss) | 24,013 | (233,956) | 14,802 | (227,343) |
Interest expense | 7,151 | 6,803 | 14,144 | 13,782 |
Other expense (income), net | 726 | (732) | 844 | 353 |
Income (loss) from continuing operations before income taxes | 16,136 | (240,027) | (186) | (241,478) |
Industrial [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 1,054,688 |  | 1,054,688 |  | 1,019,887
External sales: |  |  |  |  |
Total sales | 267,492 | 268,578 | 536,536 | 538,770 |
Operating income (loss): |  |  |  |  |
Total operating income (loss) | 18,067 | 12,025 | 23,603 | 33,483 |
Infrastructure [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 755,836 |  | 755,836 |  | 849,447
External sales: |  |  |  |  |
Total sales | 177,207 | 213,138 | 344,289 | 455,159 |
Operating income (loss): |  |  |  |  |
Total operating income (loss) | 10,274 | (237,738) | 2,687 | (246,166) |
WIDIA [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 193,343 |  | 193,343 |  | 195,339
External sales: |  |  |  |  |
Total sales | 42,874 | 42,305 | 83,888 | 85,447 |
Operating income (loss): |  |  |  |  |
Total operating income (loss) | (2,666) | (4,665) | (8,403) | (6,374) |
Corporate [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 250,914 |  | 250,914 |  | $ 298,110
Operating income (loss): |  |  |  |  |
Total operating income (loss) | $ (1,662) | $ (3,578) | $ (3,085) | $ (8,286) |

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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