Annual report pursuant to Section 13 and 15(d)

Depreciation and Amortization Expense

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Depreciation and Amortization Expense
 12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Depreciation and Amortization Expense Depreciation and Amortization Expense
Depreciation and amortization expense consisted of the following:

Year Ended December 31,
2023 2022 2021
(in thousands)
Intangible asset amortization $ 62,927  $ 71,901  $ 68,587 
Internally developed software amortization 52,422  36,959  28,603 
Property and equipment depreciation 14,955  16,968  20,577 
Total depreciation and amortization $ 130,304  $ 125,828  $ 117,767