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Summary of Significant accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Adjustments resulting from foreign currency translations | Amounts charged or credited to the Consolidated Statements of Operations for the years ended December 31, 2024, December 31, 2023 and December 31, 2022 were as follows:
| Year ended
| December 31, 2024 | December 31, 2023 | December 31, 2022
| (in thousands)
Amounts (credited) / charged | $ | (18,085) |  | $ | 12,916 |  | $ | (25,997) |
Estimated useful lives of assets | Depreciation of property, plant and equipment is computed using the straight line method based on the estimated useful lives of the assets as listed below:
| Estimated Useful Life
Buildings | 40 years
Computer equipment and software | 2 - 8 years
Office furniture and fixtures | 8 years
Laboratory equipment | 5 years
Motor vehicles | 5 years
Schedule of Finite-Lived Intangible Assets |
| Estimated Useful Life
Customer relationships | 8 - 23 years
Order backlog | 3 - 5 years
Trade names | 3 years
Patient database | 7 years
Technology assets | 5 years
The carrying amount of Intangible Assets for the years ended December 31, 2024 and 2023 is as follows:
| December 31, 2024 | December 31, 2023
Cost | (in thousands)
Customer relationships | $ | 4,129,501 |  | $ | 4,090,393 |
Order backlog | 543,933 |  | 541,302 |
Trade names & brands | 204,588 |  | 204,653 |
Patient database | 170,324 |  | 170,366 |
Technology assets | 150,658 |  | 141,257 |
Total cost | 5,199,004 |  | 5,147,971 |
Accumulated amortization | (1,639,212) |  | (1,292,106) |
Net book value | $ | 3,559,792 |  | $ | 3,855,865 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
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