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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Jun. 30, 2021
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:
|  | Utility and Power Infrastructure |  | Process and Industrial Facilities |  | Storage and Terminal Solutions |  |  |  | Total
|  | (In thousands)
Net balance at June 30, 2018 |  | $ | 31,848 |  |  | $ | 37,612 |  |  | $ | 26,702 |  |  |  |  | $ | 96,162 |
Disposal of business (1) |  | — |  |  | (2,775) |  |  | — |  |  |  |  | (2,775) |
Translation adjustment (2) |  | (8) |  |  | 5 |  |  | (16) |  |  |  |  | (19) |
Net balance at June 30, 2019 |  | 31,840 |  |  | 34,842 |  |  | 26,686 |  |  |  |  | 93,368 |
Goodwill impairment |  | (24,900) |  |  | (7,981) |  |  | — |  |  |  |  | (32,881) |
Translation adjustment (2) |  | (35) |  |  | (15) |  |  | (68) |  |  |  |  | (118) |
Net balance at June 30, 2020 |  | 6,905 |  |  | 26,846 |  |  | 26,618 |  |  |  |  | 60,369 |
Translation adjustment(2) |  | 79 |  |  | 32 |  |  | 156 |  |  |  |  | 267 |
Net balance at June 30, 2021 |  | $ | 6,984 |  |  | $ | 26,878 |  |  | $ | 26,774 |  |  |  |  | $ | 60,636 |
(1)In August 2018, we disposed of a business that marketed process heating equipment. See Note 3 - Acquisitions and Disposals for more information about the disposal. The business disposed of constituted its own reporting unit and the amount of goodwill written off was all of the goodwill assigned to that reporting unit. None of the goodwill was considered impaired since we recorded a gain on the disposal. (2)The translation adjustments relate to the periodic translation of Canadian Dollar and South Korean Won denominated goodwill recorded as a part of prior acquisitions in Canada and South Korea, in which the local currency was determined to be the functional currency.
Carrying value of other intangible assets | Information on the carrying value of other intangible assets is as follows:
|  |  |  | At June 30, 2021
|  | Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
|  | (Years) |  | (In thousands)
Intellectual property |  | 10 to 15 |  | $ | 2,483 |  |  | $ | (2,031) |  |  | $ | 452 |
Customer based |  | 6 to 15 |  | 17,354 |  |  | (11,192) |  |  | 6,162 |
Total other intangible assets |  |  |  | $ | 19,837 |  |  | $ | (13,223) |  |  | $ | 6,614 |
|  |  |  | At June 30, 2020
|  | Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
|  | (Years) |  | (In thousands)
Intellectual property |  | 10 to 15 |  | $ | 2,579 |  |  | $ | (1,956) |  |  | $ | 623 |
Customer based |  | 6 to 15 |  | 21,840 |  |  | (13,626) |  |  | 8,214 |
Total other intangible assets |  |  |  | $ | 24,419 |  |  | $ | (15,582) |  |  | $ | 8,837 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | We estimate that future amortization of other intangible assets will be as follows (in thousands):
For year ending: |
June 30, 2022 | $ | 1,819 |
June 30, 2023 | 1,729 |
June 30, 2024 | 1,415 |
June 30, 2025 | 1,096 |
June 30, 2026 | 555 |
Total estimated amortization expense | $ | 6,614 |

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