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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in the carrying amount of goodwill | The changes in the carrying amount of goodwill by segment were as follows:
(In thousands) |  | Piping Systems |  | Industrial Metals |  | Climate |  | Total
Goodwill |  | $ | 160,128 |  |  | $ | 8,854 |  |  | $ | 4,416 |  |  | $ | 173,398 |
Accumulated impairment charges |  | (40,552 | ) |  | (8,853 | ) |  | — |  |  | (49,405 | )
Balance at December 31, 2016: |  | 119,576 |  |  | 1 |  |  | 4,416 |  |  | 123,993 |
Additions (1) |  | 3,852 |  |  | — |  |  | — |  |  | 3,852 |
Currency translation |  | 2,448 |  |  | — |  |  | — |  |  | 2,448 |
Balance at December 30, 2017: |  | 125,876 |  |  | 1 |  |  | 4,416 |  |  | 130,293 |
Additions (2) |  | 5,049 |  |  | — |  |  | 17,770 |  |  | 22,819 |
Currency translation |  | (2,777 | ) |  | — |  |  | — |  |  | (2,777 | )
Balance at December 29, 2018: |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 168,700 |  |  | 8,854 |  |  | 22,186 |  |  | 199,740 |
Accumulated impairment charges |  | (40,552 | ) |  | (8,853 | ) |  | — |  |  | (49,405 | )
Goodwill, net |  | $ | 128,148 |  |  | $ | 1 |  |  | $ | 22,186 |  |  | $ | 150,335 |
(1) Includes finalization of the purchase price allocation adjustment for Jungwoo-Mueller of $0.2 million. (2) Includes finalization of the purchase price allocation adjustment for Heatlink Group of $2.8 million.
Carrying amount of intangible assets | The carrying amount of intangible assets at December 29, 2018 was as follows:
(In thousands) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships |  | $ | 43,104 |  |  | $ | (6,309 | ) |  | $ | 36,795 |
Non-compete agreements |  | 2,400 |  |  | (1,582 | ) |  | 818 |
Patents and technology |  | 17,879 |  |  | (2,595 | ) |  | 15,284 |
Trade names and licenses |  | 9,173 |  |  | (2,188 | ) |  | 6,985 |
Other |  | 2,526 |  |  | (437 | ) |  | 2,089 |
Other intangible assets |  | $ | 75,082 |  |  | $ | (13,111 | ) |  | $ | 61,971 |
The carrying amount of intangible assets at December 30, 2017 was as follows:
(In thousands) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships |  | $ | 36,518 |  |  | $ | (4,644 | ) |  | $ | 31,874 |
Non-compete agreements |  | 2,834 |  |  | (1,497 | ) |  | 1,337 |
Patents and technology |  | 7,673 |  |  | (1,868 | ) |  | 5,805 |
Trade names and licenses |  | 4,977 |  |  | (1,575 | ) |  | 3,402 |
Other |  | 213 |  |  | (623 | ) |  | (410 | )
Other intangible assets |  | $ | 52,215 |  |  | $ | (10,207 | ) |  | $ | 42,008 |
Amortization expense for intangible assets | Future amortization expense is estimated as follows:
(In thousands) |  | Amount
2019 |  | $ | 5,242 |
2020 |  | 5,047 |
2021 |  | 4,773 |
2022 |  | 4,693 |
2023 |  | 4,297 |
Thereafter |  | 37,919 |
Expected amortization expense |  | $ | 61,971 |

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