Quarterly report pursuant to Section 13 or 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
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Assets:        
Mortgage loans held for sale $ 1,126,159 $ 901,227 $ 858,314 $ 845,775
Reverse mortgage loans held for investment 348,076 315,912    
Mortgage servicing rights 1,216,483 1,161,357    
Liabilities:        
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 326,804 302,183    
Recurring Fair Value Measurements        
Assets:        
Mortgage loans held for sale 1,126,159 901,227    
Reverse mortgage loans held for investment 348,076 315,912    
Mortgage servicing rights 1,216,483 1,161,357    
Derivative assets        
Notes receivable   10,627    
Total assets at fair value 2,725,454 2,404,718    
Liabilities:        
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 326,804 302,183    
Derivative liabilities        
Forward delivery commitments and best efforts sales commitments 3,918 16,245    
Contingent liabilities due to acquisitions 20,101 8,720    
Total liabilities at fair value 350,823 327,148    
Recurring Fair Value Measurements | Interest Rate Lock Commitments        
Derivative assets        
Derivative assets 23,588 14,902    
Recurring Fair Value Measurements | Forward delivery commitments and best efforts sales commitments        
Derivative assets        
Derivative assets 142 693    
Recurring Fair Value Measurements | Level 1        
Assets:        
Mortgage loans held for sale 0 0    
Reverse mortgage loans held for investment 0 0    
Mortgage servicing rights 0 0    
Derivative assets        
Notes receivable 0 0    
Total assets at fair value 0 0    
Liabilities:        
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 0 0    
Derivative liabilities        
Forward delivery commitments and best efforts sales commitments 0 0    
Contingent liabilities due to acquisitions 0 0    
Total liabilities at fair value 0 0    
Recurring Fair Value Measurements | Level 1 | Interest Rate Lock Commitments        
Derivative assets        
Derivative assets 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 2        
Assets:        
Mortgage loans held for sale 1,126,159 901,227    
Reverse mortgage loans held for investment 0 0    
Mortgage servicing rights 0 0    
Derivative assets        
Notes receivable 0 0    
Total assets at fair value 1,126,301 901,920    
Liabilities:        
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 0 0    
Derivative liabilities        
Forward delivery commitments and best efforts sales commitments 3,918 16,245    
Contingent liabilities due to acquisitions 0 0    
Total liabilities at fair value 3,918 16,245    
Recurring Fair Value Measurements | Level 2 | Interest Rate Lock Commitments        
Derivative assets        
Derivative assets 0 0    
Recurring Fair Value Measurements | Level 2 | Forward delivery commitments and best efforts sales commitments        
Derivative assets        
Derivative assets 142 693    
Recurring Fair Value Measurements | Level 3        
Assets:        
Mortgage loans held for sale 0 0    
Reverse mortgage loans held for investment 348,076 315,912    
Mortgage servicing rights 1,216,483 1,161,357    
Derivative assets        
Notes receivable 11,006 10,627    
Total assets at fair value 1,599,153 1,502,798    
Liabilities:        
Home Equity Conversion Mortgage-Backed Securities (“HMBS”) related borrowings 326,804 302,183    
Derivative liabilities        
Forward delivery commitments and best efforts sales commitments 0 0    
Contingent liabilities due to acquisitions 20,101 8,720    
Total liabilities at fair value 346,905 310,903    
Recurring Fair Value Measurements | Level 3 | Interest Rate Lock Commitments        
Derivative assets        
Derivative assets 23,588 14,902    
Recurring Fair Value Measurements | Level 3 | Forward delivery commitments and best efforts sales commitments        
Derivative assets        
Derivative assets $ 0 $ 0