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Employee Compensation and Benefit Plans - Narrative (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of employee contributions | 50.00% |  |
Provident fund contribution percentage on portion of employees salary | 12.00% |  |
Contributions | $ 4,300,000 | $ 5,000,000 | $ 5,100,000
Future expected benefit payments | 3,500,000 |  |
Compensation expense recognized | $ 18,700,000 | $ 13,100,000 | $ 23,600,000
Common stock remaining available for future issuance (in shares) | 334,763 |  |
Contractual term of all options granted (years) | 10 years |  |
Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employer match limit, percent of employee compensation | 6.00% |  |
Matching compensation per pay period (usd per pay period) | $ 9,900 |  |
Equity-Settled Awards |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Granted (in shares) |  | 57,187 |
Restricted Stock Units |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Grants in period, performance-based (percentage) | 50.00% | 50.00% | 50.00%
Weighted average remaining requisite service period | 1 year 8 months 12 days |  |
Unvested awards, cost not yet recognized | $ 12,300,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Grants in period, performance-based (percentage) | 50.00% | 50.00% | 50.00%
Liability Awards |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Weighted average remaining requisite service period | 1 year |  |
Unvested awards, cost not yet recognized | $ 6,800,000 |  |
Hybrid Awards |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Granted (in shares) |  |  | 117,233
Market-based Stock Awards |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Grants in period, time-based (percentage) | 50.00% | 50.00% | 50.00%
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Grants in period, time-based (percentage) | 50.00% | 50.00% | 50.00%
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net periodic benefit cost | $ 400,000 | $ (900,000) | $ (900,000)
Future expected benefit payments | 3,500,000 |  |
Future expected benefit payments | 3,000,000 |  |
Future expected benefit payments | 3,100,000 |  |
Future expected benefit payments | 15,400,000 |  |
Contributions to defined benefit pension plans | 0 | 100,000 | 1,000,000
Fair value of plan assets | 39,600,000 | 37,500,000 |
Benefit obligation | 42,200,000 | 40,900,000 |
Unfunded status recognized in Other liabilities | (2,600,000) | (3,400,000) |
Gratuity Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Future expected benefit payments | 900,000 |  |
Future expected benefit payments | 800,000 |  |
Future expected benefit payments | 800,000 |  |
Future expected benefit payments | 800,000 |  |
Future expected benefit payments | 700,000 |  |
Future expected benefit payments | 2,900,000 |  |
Fair value of plan assets | 0 | 0 |
Benefit obligation | 6,700,000 | 5,900,000 |
Unfunded status recognized in Other liabilities | (6,700,000) | (5,900,000) |
Plan assets, benefits paid | $ 500,000 | $ 700,000 | $ 800,000
PHH Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Benefit obligation discount rate | 4.75% | 5.25% |
Benefit obligation, period increase (decrease) | $ 1,900,000 |  |
Long-Term Incentive (LTI) Program |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Granted (in shares) | 198,624 | 246,018 | 233,056
Long-Term Incentive (LTI) Program | Performance-Based Awards |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Vesting percentage of awards (percentage) | 100.00% |  |
Long-Term Incentive (LTI) Program | Market-based Stock Awards |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Granted (in shares) | 57,515 | 13,091 | 4,623
Chief Executive Officer |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Granted (in shares) | 168,950 | 147,058 | 115,173

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