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Goodwill and Intangible Assets - Carrying Amount of Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Goodwill |  |  |  |
Balance at the beginning of the period |  |  | $ 502,550 |
Foreign exchange |  |  | 5,526 |
Balance at the end of the period | $ 550,946 | $ 483,413 | 550,946 | $ 483,413
Intangible Assets |  |  |  |
Balance at the beginning of the period |  |  | 365,339 |
Amortization | (6,600) | (5,900) | (17,965) | (17,500)
Foreign exchange |  |  | 4,771 |
Balance at the end of the period | $ 395,517 | $ 356,450 | 395,517 | $ 356,450
Goodwill, acquired |  |  | $ 42,870 |

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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-1 + Details
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