Accounts Payable, Accrued Expenses and Other Liabilities - Components of Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued compensation	$ 114,481	$ 112,528
Payroll and other taxes payable	64,580	59,277
Financial guarantee liability	29,908	28,551	$ 27,729
Deferred rent	6,866	6,381
Contingent consideration	24,984	25,740
Other	12,246	9,264
Total	$ 253,065	$ 241,741