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Compensation and Benefits - Components of expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Salaries, incentive compensation and benefits	$ 129,365	$ 116,326	$ 258,463	$ 231,876
Restricted share-based award compensation expense	7,781	7,747	16,060	16,725
Long-term incentive compensation expense	17,425	14,107	38,207	30,069
Compensation and benefits	146,790	130,433	$ 296,670	261,945
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Requisite Service Period, Retirement Acceleration			18 months
Deferred Bonus
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term cash incentive compensation expense	$ 9,644	$ 6,360	$ 22,147	$ 13,344

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- Definition

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The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.

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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.

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