Stock Incentive Plans - Schedule of Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	$ 22,356	$ 27,070	$ 42,373	$ 52,985
Property and equipment (capitalized internal-use software)	2,388	3,187	4,994	5,709
Total share-based compensation expense	24,744	30,257	47,367	58,694
Restricted stock units
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	19,982	24,375	39,208	47,909
Stock options
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	453	1,349	1,349	3,623
Performance restricted stock units
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	1,753	1,153	1,458	1,072
Employee Stock Purchase Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	$ 168	$ 193	$ 358	$ 381

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147479983/718-10-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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