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Segment Information - Results of Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2017 | Mar. 31, 2016 | Jun. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | $ 252,259 | $ 310,172 | $ 914,513 | $ 956,568 |
Revenues | 251,237 | 309,422 | 905,673 | 952,282 |
Gross profit | (2,614) | 27,303 | 57,876 | 91,892 |
Operating income | (21,210) | 6,347 | 1,328 | 26,383 |
Segment assets | 580,268 |  | 580,268 |  | $ 564,967
Goodwill | 113,182 |  | 113,182 |  | 78,293
Electrical Infrastructure [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | 82,032 | 94,414 | 273,215 | 251,437 |
Revenues | 82,032 | 94,414 | 273,215 | 251,437 |
Gross profit | (13,371) | 10,407 | (896) | 19,136 |
Operating income | (16,306) | 4,948 | (13,085) | 5,425 |
Segment assets | 167,280 |  | 167,280 |  | 135,298
Goodwill | 41,995 |  | 41,995 |  | 42,170
Oil Gas & Chemical [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | 69,295 | 56,251 | 164,036 | 188,682 |
Revenues | 68,888 | 55,729 | 157,144 | 185,580 |
Gross profit | 4,333 | 2,616 | 6,765 | 14,270 |
Operating income | (2,199) | (1,964) | (7,054) | (3,577) |
Segment assets | 142,551 |  | 142,551 |  | 91,350
Goodwill | 42,747 |  | 42,747 |  | 14,008
Storage Solutions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | 74,431 | 132,857 | 403,008 | 400,074 |
Revenues | 74,052 | 132,629 | 402,331 | 399,034 |
Gross profit | 5,456 | 15,108 | 48,980 | 49,766 |
Operating income | (1,552) | 6,382 | 23,463 | 24,305 |
Segment assets | 169,829 |  | 169,829 |  | 201,875
Goodwill | 16,730 |  | 16,730 |  | 16,681
Industrial [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | 26,501 | 26,650 | 74,254 | 116,375 |
Revenues | 26,265 | 26,650 | 72,983 | 116,231 |
Gross profit | 968 | (828) | 3,027 | 8,720 |
Operating income | (1,153) | (3,019) | (1,996) | 230 |
Segment assets | 45,623 |  | 45,623 |  | 67,569
Goodwill | 11,710 |  | 11,710 |  | 5,434
Other Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Segment assets | 54,985 |  | 54,985 |  | $ 68,875
Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | 1,022 | 750 | 8,840 | 4,286 |
Intersegment Eliminations [Member] | Oil Gas & Chemical [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | 407 | 522 | 6,892 | 3,102 |
Intersegment Eliminations [Member] | Storage Solutions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | 379 | 228 | 677 | 1,040 |
Intersegment Eliminations [Member] | Industrial [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gross revenues | $ 236 | $ 0 | $ 1,271 | $ 144 |

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