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Income Taxes - Summary of Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets |  |
Allowance for expected credit losses | $ 7,597 | $ 2,923
Accrued vacation and bonus | 47,115 | 37,776
Share-based compensation | 13,857 | 14,599
Notes receivable from employees | 10,770 | 11,927
State net operating loss carryforward | 172 | 537
Foreign net operating and capital loss carryforward | 13,487 | 11,852
Foreign tax credit carryforward | 14,384 | 4,199
Deferred compensation | 3,550 | 3,049
Operating lease assets | 64,649 | 64,465
Employee benefits obligations | 568 | 519
Other, net | 2,691 | 763
Total deferred tax assets | 178,840 | 152,609
Deferred tax liabilities |  |
Revenue recognition | (2,427) | (6,406)
Operating lease liabilities | (52,673) | (51,995)
Property and equipment, net | (13,216) | (12,956)
Goodwill and intangible assets | (207,131) | (204,634)
Total deferred tax liabilities | (275,447) | (275,991)
Foreign withholding tax | (2,178) | (1,921)
Valuation allowance | (6,773) | (6,459)
Net deferred tax liabilities | $ (105,558) | $ (131,762)

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