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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |
Carrying value of goodwill by segment | The changes in the carrying amount of goodwill by segment are as follows:
|  | Electrical Infrastructure |  | Oil Gas & Chemical |  | Storage Solutions |  | Industrial |  | Total
|  | (In thousands)
Goodwill |  | $ | 29,666 |  |  | $ | 8,088 |  |  | $ | 10,985 |  |  | $ | 7,097 |  |  | $ | 55,836 |
Cumulative impairment loss (1) |  | (17,653 | ) |  | (3,000 | ) |  | (922 | ) |  | (3,425 | ) |  | (25,000 | )
Net balance at June 30, 2013 |  | 12,013 |  |  | 5,088 |  |  | 10,063 |  |  | 3,672 |  |  | 30,836 |
Purchase of Kvaerner North American Construction (Note 2) |  | 31,259 |  |  | 5,855 |  |  | — |  |  | 1,962 |  |  | 39,076 |
Translation adjustment (2) |  | (29 | ) |  | — |  |  | (36 | ) |  | (10 | ) |  | (75 | )
Net balance at June 30, 2014 |  | 43,243 |  |  | 10,943 |  |  | 10,027 |  |  | 5,624 |  |  | 69,837 |
Acquisition related adjustments |  | 175 |  |  | — |  |  | — |  |  | 44 |  |  | 219 |
Purchase of HDB (Note 2) |  | — |  |  | 3,065 |  |  | — |  |  | — |  |  | 3,065 |
Translation adjustment (2) |  | (1,044 | ) |  | — |  |  | (363 | ) |  | (196 | ) |  | (1,603 | )
Net balance at June 30, 2015 |  | 42,374 |  |  | 14,008 |  |  | 9,664 |  |  | 5,472 |  |  | 71,518 |
Purchase of BTE (Note 2) |  | — |  |  | — |  |  | 6,942 |  |  | — |  |  | 6,942 |
Translation adjustment (2) |  | (204 | ) |  | — |  |  | 75 |  |  | (38 | ) |  | (167 | )
Net balance at June 30, 2016 |  | $ | 42,170 |  |  | $ | 14,008 |  |  | $ | 16,681 |  |  | $ | 5,434 |  |  | $ | 78,293 |
Carrying value of other intangible assets | Information on the carrying value of other intangible assets is as follows:
|  |  |  | At June 30, 2016
|  | Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
|  | (Years) |  | (In thousands)
Intellectual property |  | 9 to 15 |  | $ | 2,579 |  |  | $ | (1,246 | ) |  | $ | 1,333 |
Customer based |  | 1.5 to 15 |  | 28,179 |  |  | (9,655 | ) |  | 18,524 |
Non-compete Agreements |  | 4 to 5 |  | 1,453 |  |  | (1,102 | ) |  | 351 |
Trade names |  | 3 to 5 |  | 1,615 |  |  | (824 | ) |  | 791 |
Total other intangible assets |  |  |  | $ | 33,826 |  |  | $ | (12,827 | ) |  | $ | 20,999 |
|  |  |  | At June 30, 2015
|  | Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
|  | (Years) |  | (In thousands)
Intellectual property |  | 6 to 15 |  | $ | 2,460 |  |  | $ | (1,086 | ) |  | $ | 1,374 |
Customer based |  | 1.5 to 15 |  | 27,837 |  |  | (7,109 | ) |  | 20,728 |
Non-compete agreements |  | 4 to 5 |  | 1,354 |  |  | (802 | ) |  | 552 |
Trade name |  | 3 to 5 |  | 1,615 |  |  | (308 | ) |  | 1,307 |
Total other intangible assets |  |  |  | $ | 33,266 |  |  | $ | (9,305 | ) |  | $ | 23,961 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | Amortization expense totaled $3.6 million, $5.0 million, and $2.8 million in fiscal 2016, 2015, and 2014, respectively. We estimate that future amortization of other intangible assets will be as follows (in thousands):
For year ending: |
June 30, 2017 | $ | 3,298 |
June 30, 2018 | 2,957 |
June 30, 2019 | 2,590 |
June 30, 2020 | 2,580 |
June 30, 2021 | 2,562 |
Thereafter | 7,012 |
Total estimated amortization expense | $ | 20,999 |

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