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Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Finite-lived intangible assets |  |  |
Gross Carrying Amount | $ 30,648 | $ 22,445 |
Accumulated Amortization | (15,532) | (13,987) |
Indefinite-lived intangible assets Goodwill | 27,840 | 15,621 | $ 16,544
Patents [Member] |  |  |
Finite-lived intangible assets |  |  |
Gross Carrying Amount | 4,806 | 4,806 |
Accumulated Amortization | (4,806) | (4,788) |
Land Use Rights [Member] |  |  |
Finite-lived intangible assets |  |  |
Gross Carrying Amount | 1,128 | 1,134 |
Accumulated Amortization | (331) | (203) |
Trademark [Member] |  |  |
Finite-lived intangible assets |  |  |
Gross Carrying Amount | 1,718 | 1,707 |
Accumulated Amortization | (1,358) | (1,247) |
Technology [Member] |  |  |
Finite-lived intangible assets |  |  |
Gross Carrying Amount | 7,185 | 2,994 |
Accumulated Amortization | (1,708) | (1,334) |
Customer Relationships [Member] |  |  |
Finite-lived intangible assets |  |  |
Gross Carrying Amount | 15,811 | 11,804 |
Accumulated Amortization | $ (7,329) | $ (6,415) |

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