Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)

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FAIR VALUE MEASUREMENTS - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Assets:      
Trading securities $ 100 $ 96  
Derivative assets      
Derivative assets 15,595 3,120  
Mortgage loans held for sale 901,227 845,775 $ 2,204,216
Reverse mortgage loans held for investment 315,912 0  
Mortgage servicing rights 1,161,357 1,139,539  
Investment in warrants 961 961  
Derivative liabilities      
Forward commitments and best efforts sales commitments 16,245 5,173  
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 302,183 0  
Contingent liabilities due to acquisitions 8,720 526  
Recurring Fair Value Measurements      
Assets:      
Trading securities 100 96  
Notes receivable 10,627    
Derivative assets      
Mortgage loans held for sale 901,227 845,775  
Reverse mortgage loans held for investment 315,912    
Mortgage servicing rights 1,161,357 1,139,539  
Investment in warrants 961 961  
Total assets at fair value 2,405,779 1,989,491  
Derivative liabilities      
Forward commitments and best efforts sales commitments 16,245 5,173  
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 302,183    
Contingent liabilities due to acquisitions 8,720 526  
Total liabilities at fair value 327,148 5,699  
Recurring Fair Value Measurements | Forward delivery commitments and best efforts sales commitments      
Derivative assets      
Derivative assets 693 1,602  
Recurring Fair Value Measurements | Interest Rate Lock Commitments      
Derivative assets      
Derivative assets 14,902 1,518  
Recurring Fair Value Measurements | Level 1      
Assets:      
Trading securities 100 96  
Notes receivable 0    
Derivative assets      
Mortgage loans held for sale 0 0  
Reverse mortgage loans held for investment 0    
Mortgage servicing rights 0 0  
Investment in warrants 0 0  
Total assets at fair value 100 96  
Derivative liabilities      
Forward commitments and best efforts sales commitments 0 0  
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 0    
Contingent liabilities due to acquisitions 0 0  
Total liabilities at fair value 0 0  
Recurring Fair Value Measurements | Level 1 | Forward delivery commitments and best efforts sales commitments      
Derivative assets      
Derivative assets 0 0  
Recurring Fair Value Measurements | Level 1 | Interest Rate Lock Commitments      
Derivative assets      
Derivative assets 0 0  
Recurring Fair Value Measurements | Level 2      
Assets:      
Trading securities 0 0  
Notes receivable 0    
Derivative assets      
Mortgage loans held for sale 901,227 845,775  
Reverse mortgage loans held for investment 0    
Mortgage servicing rights 0 0  
Investment in warrants 0 0  
Total assets at fair value 901,920 847,377  
Derivative liabilities      
Forward commitments and best efforts sales commitments 16,245 5,173  
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 0    
Contingent liabilities due to acquisitions 0 0  
Total liabilities at fair value 16,245 5,173  
Recurring Fair Value Measurements | Level 2 | Forward delivery commitments and best efforts sales commitments      
Derivative assets      
Derivative assets 693 1,602  
Recurring Fair Value Measurements | Level 2 | Interest Rate Lock Commitments      
Derivative assets      
Derivative assets 0 0  
Recurring Fair Value Measurements | Level 3      
Assets:      
Trading securities 0 0  
Notes receivable 10,627    
Derivative assets      
Mortgage loans held for sale 0 0  
Reverse mortgage loans held for investment 315,912    
Mortgage servicing rights 1,161,357 1,139,539  
Investment in warrants 961 961  
Total assets at fair value 1,503,759 1,142,018  
Derivative liabilities      
Forward commitments and best efforts sales commitments 0 0  
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 302,183    
Contingent liabilities due to acquisitions 8,720 526  
Total liabilities at fair value 310,903 526  
Recurring Fair Value Measurements | Level 3 | Forward delivery commitments and best efforts sales commitments      
Derivative assets      
Derivative assets 0 0  
Recurring Fair Value Measurements | Level 3 | Interest Rate Lock Commitments      
Derivative assets      
Derivative assets $ 14,902 $ 1,518