| Schedule of Assets and Liabilities Measured on a Recurring Basis |
The following table presents the fair value of commercial paper and corporate bonds issued and outstanding: | | | | | | | | | | | | | As of June 30, 2026 | | As of December 31, 2025 | | Commercial paper | $ | 10,813 | | | $ | 12,985 | | | | | | | Total classified as restricted cash equivalents | $ | 10,813 | | | $ | 12,985 | | | | | | | Commercial paper | $ | 1,569 | | | $ | 1,449 | | | Corporate bonds | 31,977 | | | 32,586 | | | Total classified as restricted investments | $ | 33,546 | | | $ | 34,035 | |
The following table presents information about the above-referenced assets and liabilities and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements as of June 30, 2026 | | Fair Value Measurements as of December 31, 2025 | | Assets (Liabilities) | Level 1 | | Level 2 | | Level 3 | | | Total | | Level 1 | | Level 2 | | Level 3 | | Total | | Money market funds | $ | 320,156 | | | $ | — | | | $ | — | | | | $ | 320,156 | | | $ | 10,012 | | | $ | — | | | $ | — | | | $ | 10,012 | | | Deferred compensation | (214,298) | | | — | | | — | | | | (214,298) | | | (205,390) | | | — | | | — | | | (205,390) | | | Commercial paper | — | | | 12,382 | | | — | | | | 12,382 | | | — | | | 14,434 | | | — | | | 14,434 | | | Corporate bonds | — | | | 31,977 | | | — | | | | 31,977 | | | — | | | 32,586 | | | — | | | 32,586 | | | Acquisition contingent consideration liabilities | — | | | — | | | (1,770) | | | | (1,770) | | | — | | | — | | | — | | | — | |
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| Schedule of Carrying Amounts and Estimated Fair Value |
The carrying amounts and estimated fair value of the 2029 Notes and the 2031 Notes are presented in the following table. See additional information regarding the 2029 Notes and the 2031 Notes in Part II, Item 8, “Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note (9), Notes Payable and Credit Agreement” of the 2025 Annual Report. | | | | | | | | | | | | | | | | | | | | | | | | | As of June 30, 2026 | | As of December 31, 2025 | | Carrying
Amount | | Estimated
Fair Value | | Carrying
Amount | | Estimated
Fair Value | | 2029 Notes | $ | 350,000 | | | $ | 338,625 | | | $ | 350,000 | | | $ | 331,188 | | | 2031 Notes | 400,000 | | | 401,000 | | | 400,000 | | | 398,500 | |
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