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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Apr. 01, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of goodwill | The changes in the carrying amount of goodwill for each of our three reportable segments were as follows:
(In thousands) | Industrial | Water Treatment | Health and Nutrition | Total
Balance as of April 3, 2016 | $ | 6,495 |  | $ | 7,000 |  | $ | 84,229 |  | $ | 97,724 |
Final purchase price adjustment for prior-year acquisition | — |  | — |  | (168 | ) | (168 | )
Balance as of April 2, 2017 | 6,495 |  | 7,000 |  | 84,061 |  | 97,556 |
Impairment | — |  | — |  | (39,116 | ) | (39,116 | )
Balance as of April 1, 2018 | $ | 6,495 |  | $ | 7,000 |  | $ | 44,945 |  | $ | 58,440 |
Summary of intangible assets | The following is a summary of our identifiable intangible assets as of April 1, 2018 and April 2, 2017:
|  | 2018
|  | Gross Amount |  | Accumulated Amortization |  | Net carrying value
(In thousands) |  |  |  |  |  |
Finite-life intangible assets: |  |  |  |  |  |
Customer relationships |  | $ | 78,383 |  |  | $ | (12,419 | ) |  | $ | 65,964 |
Trademarks and trade names |  | 6,045 |  |  | (2,490 | ) |  | 3,555 |
Other finite-life intangible assets |  | 3,648 |  |  | (3,215 | ) |  | 433 |
Total finite-life intangible assets |  | 88,076 |  |  | (18,124 | ) |  | 69,952 |
Indefinite-life intangible assets |  | 1,227 |  |  | — |  |  | 1,227 |
Total intangible assets, net |  | $ | 89,303 |  |  | $ | (18,124 | ) |  | $ | 71,179 |
|  | 2017
|  | Gross Amount |  | Accumulated Amortization |  | Net carrying value
(In thousands) |  |  |  |  |  |
Finite-life intangible assets: |  |  |  |  |  |
Customer relationships |  | $ | 78,383 |  |  | $ | (7,854 | ) |  | $ | 70,529 |
Trademarks and trade names |  | 6,045 |  |  | (1,790 | ) |  | 4,255 |
Other finite-life intangible assets |  | 3,648 |  |  | (2,776 | ) |  | 872 |
Total finite-life intangible assets |  | 88,076 |  |  | (12,420 | ) |  | 75,656 |
Indefinite-life intangible assets |  | 1,227 |  |  | — |  |  | 1,227 |
Total intangible assets, net |  | $ | 89,303 |  |  | $ | (12,420 | ) |  | $ | 76,883 |
Schedule of future amortization expense | The estimated future amortization expense for identifiable intangible assets during the next five years is as follows:
(In thousands) |  | 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023
Estimated amortization expense |  | $ | 5,454 |  |  | $ | 5,073 |  |  | $ | 5,028 |  |  | $ | 4,891 |  |  | $ | 4,891 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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