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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Schedule of Employee Deferred Compensation Plans | The following table presents the Company’s (income) loss from investments held in employee deferred compensation trusts (in thousands):
|  | Year Ended December 31,
|  | 2024 |  |  | 2023 |  | 2022
Dividend income |  | $ | (22,423) |  |  |  | $ | (15,049) |  |  | $ | (12,637) |
Realized and unrealized (gains) losses |  | (71,656) |  |  |  | (72,971) |  |  | 98,776 |
(Income) loss from investments held in employee deferred compensation trusts (which is completely offset by related costs and expenses) |  | $ | (94,079) |  |  |  | $ | (88,020) |  |  | $ | 86,139 |
The following table presents the Company’s increase (decrease) in employee deferred compensation costs and expense related to changes in the fair value of trust assets for its nonqualified employee deferred compensation plans (in thousands):
| Year Ended December 31,
| 2024 |  | 2023 |  | 2022
Increase (decrease) in employee deferred compensation costs and expense related to changes in the fair value of trust assets | $ | 94,079 |  |  | $ | 88,020 |  |  | $ | (86,139) |
Schedule of Allocation of Plan Assets | The following table summarizes the Company’s financial instruments by significant category and fair value measurement on a recurring basis (in thousands):
|  |  | Fair Value Measurements Using
| Balance at December 31, 2024 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Cash equivalents |  |  |  |  |  |  |
Money market funds | $ | 293,990 |  |  | $ | 293,990 |  |  | — |  |  | — |
Employee deferred compensation trust assets |  |  |  |  |  |  |
Money market funds | $ | 125,112 |  |  | $ | 125,112 |  |  | — |  |  | — |
Mutual funds - bonds | 38,705 |  |  | 38,705 |  |  | — |  |  | — |
Mutual funds - stocks | 401,751 |  |  | 401,751 |  |  | — |  |  | — |
Mutual funds - blend | 107,672 |  |  | 107,672 |  |  | — |  |  | — |
Total employee deferred compensation trust assets | $ | 673,240 |  |  | $ | 673,240 |  |  | — |  |  | — |
|  |  | Fair Value Measurements Using
| Balance at December 31, 2023 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Cash equivalents |  |  |  |  |  |  |
Money market funds | $ | 351,230 |  |  | $ | 351,230 |  |  | — |  |  | — |
Employee deferred compensation trust assets |  |  |  |  |  |  |
Money market funds | $ | 124,710 |  |  | $ | 124,710 |  |  | — |  |  | — |
Mutual funds - bonds | 35,373 |  |  | 35,373 |  |  | — |  |  | — |
Mutual funds - stocks | 316,764 |  |  | 316,764 |  |  | — |  |  | — |
Mutual funds - blend | 94,199 |  |  | 94,199 |  |  | — |  |  | — |
Total employee deferred compensation trust assets | $ | 571,046 |  |  | $ | 571,046 |  |  | — |  |  | — |
Schedule of Accounts Receivable, Allowance for Credit Loss | The following table sets forth the activity in the allowance for credit losses from December 31, 2022, through December 31, 2024 (in thousands):
| Allowance for Credit Losses
Balance as of December 31, 2022 | $ | 22,561 |
Charges to expense | 8,752 |
Deductions | (6,486) |
Other, including translation adjustments | 362 |
Balance as of December 31, 2023 | $ | 25,189 |
Charges to expense | 5,286 |
Deductions | (8,009) |
Other, including translation adjustments | (505) |
Balance as of December 31, 2024 | $ | 21,961 |
Schedule of Depreciation Expense Computed Using Straight-Line Method over Useful Lives | Depreciation is computed using the straight-line method over the following useful lives:
Computer hardware | 2 to 3 years
Computer software | 2 to 5 years
Furniture and equipment | 3 to 5 years
Leasehold improvements | Term of lease
Property and equipment consisted of the following (in thousands):
|  | December 31,
|  | 2024 |  | 2023
Computer hardware |  | $ | 131,059 |  |  | $ | 150,165 |
Computer software |  | 224,609 |  |  | 220,004 |
Furniture and equipment |  | 96,288 |  |  | 99,547 |
Leasehold improvements |  | 200,565 |  |  | 187,806 |
Property and equipment, cost |  | 652,521 |  |  | 657,522 |
Accumulated depreciation |  | (532,957) |  |  | (548,713) |
Property and equipment, net |  | $ | 119,564 |  |  | $ | 108,809 |

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