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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Changes in the Carrying Amount of Goodwill | The changes in the carrying amount of goodwill for 2020 and 2019, by reportable business segment, were as follows:
| FMT |  | HST |  | FSDP |  | Total
| (In thousands)
Goodwill | $ | 601,762 |  |  | $ | 895,177 |  |  | $ | 401,647 |  |  | $ | 1,898,586 |
Accumulated goodwill impairment losses | (20,721) |  |  | (149,820) |  |  | (30,090) |  |  | (200,631) |
Balance at January 1, 2019 | 581,041 |  |  | 745,357 |  |  | 371,557 |  |  | 1,697,955 |
Foreign currency translation | (2,116) |  |  | 476 |  |  | (2,509) |  |  | (4,149) |
Acquisitions | — |  |  | 85,939 |  |  | — |  |  | 85,939 |
Balance at December 31, 2019 | 578,925 |  |  | 831,772 |  |  | 369,048 |  |  | 1,779,745 |
Foreign currency translation | 10,365 |  |  | 29,058 |  |  | 13,125 |  |  | 52,548 |
Acquisitions | 60,431 |  |  | — |  |  | 1,052 |  |  | 61,483 |
Acquisition adjustments | — |  |  | 1,798 |  |  | — |  |  | 1,798 |
Balance at December 31, 2020 | $ | 649,721 |  |  | $ | 862,628 |  |  | $ | 383,225 |  |  | $ | 1,895,574 |
Schedule of Gross Carrying Value and Accumulated Amortization For Each Major Class of Intangible Asset | The following table provides the gross carrying value and accumulated amortization for each major class of intangible asset at December 31, 2020 and 2019:
| At December 31, 2020 |  |  |  | At December 31, 2019
| Gross Carrying Amount |  | Accumulated Amortization |  | Net |  | Weighted Average Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net
|  |  | (In thousands) |  |  |  |  |  |  |  | (In thousands) |  |
Amortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Patents | $ | 3,030 |  |  | $ | (1,740) |  |  | $ | 1,290 |  |  | 10 |  | $ | 6,678 |  |  | $ | (5,276) |  |  | $ | 1,402 |
Trade names | 130,793 |  |  | (72,685) |  |  | 58,108 |  |  | 16 |  | 123,062 |  |  | (64,938) |  |  | 58,124 |
Customer relationships | 318,350 |  |  | (120,294) |  |  | 198,056 |  |  | 13 |  | 275,575 |  |  | (96,252) |  |  | 179,323 |
Unpatented technology | 122,287 |  |  | (55,131) |  |  | 67,156 |  |  | 13 |  | 101,721 |  |  | (43,561) |  |  | 58,160 |
Other | 700 |  |  | (647) |  |  | 53 |  |  | 10 |  | 700 |  |  | (578) |  |  | 122 |
Total amortized intangible assets | 575,160 |  |  | (250,497) |  |  | 324,663 |  |  |  |  | 507,736 |  |  | (210,605) |  |  | 297,131 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Banjo trade name | 62,100 |  |  | — |  |  | 62,100 |  |  |  |  | 62,100 |  |  | — |  |  | 62,100 |
Akron Brass trade name | 28,800 |  |  | — |  |  | 28,800 |  |  |  |  | 28,800 |  |  | — |  |  | 28,800 |
Total intangible assets | $ | 666,060 |  |  | $ | (250,497) |  |  | $ | 415,563 |  |  |  |  | $ | 598,636 |  |  | $ | (210,605) |  |  | $ | 388,031 |

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