Stock Incentive Plans - Schedule of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	$ 136,562	$ 127,525	$ 107,529
Executive chairman long-term performance award	(144,617)	53,214	53,214
Property and equipment (capitalized internal-use software)	7,059	4,492	0
Total share-based compensation expense	(996)	185,231	160,743
Performance-based Restricted Stock Units (PSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	107,699	99,648	76,094
Stock options
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	23,732	26,323	28,816
Performance restricted stock units
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	4,041	0	0
Employee Stock Purchase Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation recorded within Compensation and benefits	$ 1,090	$ 1,554	$ 2,619

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Amount of cost capitalized for award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Amount of cost expensed and capitalized for award under share-based payment arrangement.

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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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