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Employee Compensation and Benefit Plans - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Percentage of employee contributions 50.00%    
Provident fund contribution percentage on portion of employees salary 12.00%    
Contributions $ 5,000,000 $ 5,100,000 $ 5,200,000
Future expected benefit payments 3,000,000    
Compensation expense recognized $ 13,100,000 $ 23,600,000 $ 25,700,000
Common stock remaining available for future issuance (in shares) 404,693    
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) $ 9,150    
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 2 years 1 month 6 days    
Unvested awards, cost not yet recognized $ 9,900,000    
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 1 month 6 days    
Unvested awards, cost not yet recognized $ 9,800,000    
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 $ (900,000) $ (900,000) $ (200,000)
Future expected benefit payments 3,000,000    
Future expected benefit payments 3,000,000    
Future expected benefit payments 3,000,000    
Future expected benefit payments 15,400,000    
Contributions to defined benefit pension plans 100,000 1,000,000 2,100,000
Fair value of plan assets 37,500,000 50,100,000  
Benefit obligation 40,900,000 54,300,000  
Unfunded status recognized in Other liabilities (3,400,000) (4,200,000)  
Gratuity Plan      
Defined Benefit Plan Disclosure [Line Items]      
Future expected benefit payments 1,000,000    
Future expected benefit payments 900,000    
Future expected benefit payments 800,000    
Future expected benefit payments 700,000    
Future expected benefit payments 700,000    
Future expected benefit payments 2,500,000    
Fair value of plan assets 0 0  
Benefit obligation 5,900,000 6,300,000  
Unfunded status recognized in Other liabilities (5,900,000) (6,300,000)  
Plan assets, benefits paid $ 700,000 $ 800,000 $ 800,000
PHH Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligation discount rate 5.25% 2.75%  
Benefit obligation, period increase (decrease) $ 11,700,000    
Berkeley Plan      
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligation discount rate 5.51% 2.80%  
Long-Term Incentive (LTI) Program      
Defined Benefit Plan Disclosure [Line Items]      
Granted (in shares) 246,018 233,056 601,787
Long-Term Incentive (LTI) Program | Cash-Settled Awards      
Defined Benefit Plan Disclosure [Line Items]      
Granted (in shares)     57,891
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) 13,091 4,623  
Chief Executive Officer      
Defined Benefit Plan Disclosure [Line Items]      
Granted (in shares) 147,058 115,173 150,000