Fixed Assets, Net - Components of Fixed Assets, Net (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Property, Plant, and Equipment [Line Items] | ||
| Fixed assets, gross | $ 692,365 | $ 668,217 |
| Less: accumulated depreciation and amortization | (512,372) | (486,137) |
| Fixed assets, net | 179,993 | 182,080 |
| Computer and communications equipment | ||
| Property, Plant, and Equipment [Line Items] | ||
| Fixed assets, gross | 133,565 | 126,476 |
| Software, including software development costs | ||
| Property, Plant, and Equipment [Line Items] | ||
| Fixed assets, gross | 432,321 | 416,516 |
| Leasehold improvements and other fixed assets | ||
| Property, Plant, and Equipment [Line Items] | ||
| Fixed assets, gross | $ 126,479 | $ 125,225 |
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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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