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Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | Changes in the carrying amount of goodwill for the six months ended June 30, 2021 are summarized as follows (dollars in thousands):
| Packaging |  | Aerospace |  | Specialty Products |  | Total
Balance, December 31, 2020 | $ | 234,560 |  |  | $ | 62,850 |  |  | $ | 6,560 |  |  | $ | 303,970 |
Foreign currency translation and other | (2,540) |  |  | — |  |  | — |  |  | (2,540) |
Balance, June 30, 2021 | $ | 232,020 |  |  | $ | 62,850 |  |  | $ | 6,560 |  |  | $ | 301,430 |
Schedule of Intangible Assets (excluding Goodwill) by Major Class | The Company amortizes its other intangible assets over periods ranging from one to 30 years. The gross carrying amounts and accumulated amortization of the Company's other intangibles are summarized below (dollars in thousands):
|  | As of June 30, 2021 |  | As of December 31, 2020
Intangible Category by Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Gross Carrying Amount |  | Accumulated Amortization
Finite-lived intangible assets: |  |  |  |  |  |  |  |
Customer relationships, 5 – 12 years |  | $ | 122,010 |  |  | $ | (65,350) |  |  | $ | 122,970 |  |  | $ | (59,470) |
Customer relationships, 15 – 25 years |  | 122,280 |  |  | (65,300) |  |  | 122,280 |  |  | (62,450) |
Total customer relationships |  | 244,290 |  |  | (130,650) |  |  | 245,250 |  |  | (121,920) |
Technology and other, 1 – 15 years |  | 57,180 |  |  | (34,480) |  |  | 57,180 |  |  | (32,800) |
Technology and other, 17 – 30 years |  | 43,300 |  |  | (39,680) |  |  | 43,300 |  |  | (39,450) |
Total technology and other |  | 100,480 |  |  | (74,160) |  |  | 100,480 |  |  | (72,250) |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |
Trademark/Trade names |  | 54,190 |  |  | — |  |  | 54,640 |  |  | — |
Total other intangible assets |  | $ | 398,960 |  |  | $ | (204,810) |  |  | $ | 400,370 |  |  | $ | (194,170) |
Schedule of Finite-Lived Intangible Assets, Amortization Expense | Amortization expense related to intangible assets as included in the accompanying consolidated statement of operations is summarized as follows (dollars in thousands):
|  | Three months ended June 30, |  | Six months ended June 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Technology and other, included in cost of sales |  | $ | 950 |  |  | $ | 1,260 |  |  | $ | 1,900 |  |  | $ | 2,470 |
Customer relationships, included in selling, general and administrative expenses |  | 4,440 |  |  | 4,040 |  |  | 8,880 |  |  | 7,680 |
Total amortization expense |  | $ | 5,390 |  |  | $ | 5,300 |  |  | $ | 10,780 |  |  | $ | 10,150 |

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- Definition Tabular disclosure of amortization expense related to finite-lived intangible assets by category. + References No definition available. + Details
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- Definition Tabular disclosure of intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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