v3.26.1
Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Schedule of Amounts Charged or Credited to the Consolidated Statements of Operations Amounts charged or credited to the Consolidated Statements of Operations for the years ended December 31, 2025, December 31, 2024 and December 31, 2023 were as follows:
Year ended December 31,
 202520242023
(in thousands)
Amounts charged / (credited) $39,311 $(18,085)$12,916 
Schedule of Depreciation of Property, Plant and Equipment Computed Using Straight Line Method Based On 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 fixtures8 years
Laboratory equipment  5 years
Motor vehicles5 years
Schedule of Estimated Useful Lives of Intangible Assets Amortized on Straight-Line Basis
Intangible assets are amortized on a straight-line basis over their estimated useful lives, as set forth in the table below:

Estimated Useful Life
Customer relationships
8 - 23 years
Order backlog
       3 - 5 years
Trade names3 years
Patient database7 years
Technology assets5 years
The carrying amount of intangible assets for the years ended December 31, 2025, 2024, and 2023 is as follows:
December 31, 2025December 31, 2024December 31, 2023
(in thousands)
Customer relationships$4,134,478 $4,129,501 $4,090,393 
Order backlog546,054 543,933 541,302 
Trade names & brands204,721 204,588 204,653 
Patient database170,511 170,324 170,366 
Technology assets151,754 150,658 141,257 
Total cost5,207,518 5,199,004 5,147,971 
Accumulated amortization(1,873,663)(1,639,212)(1,292,106)
Impairment(86,737)— — 
Net book value$3,247,118 $3,559,792 $3,855,865