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, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Assets:        
Trading securities $ 80 $ 96    
Derivative        
Derivative assets 12,206 3,120    
Mortgage loans held for sale 858,314 845,775 $ 1,281,799 $ 2,204,216
Mortgage servicing rights 1,112,161 1,139,539    
Investment in warrants 961 961    
Derivative        
Derivative liabilities 8,206 5,173    
Contingent liabilities due to acquisitions 2,218 526    
Recurring Fair Value Measurements        
Assets:        
Trading securities 80 96    
Derivative        
Mortgage loans held for sale 858,314 845,775    
Mortgage servicing rights 1,112,161 1,139,539    
Investment in warrants 961 961    
Total assets at fair value 1,983,722 1,989,491    
Derivative        
Contingent liabilities due to acquisitions 2,218 526    
Total liabilities at fair value 10,424 5,699    
Recurring Fair Value Measurements | Forward delivery commitments and best efforts sales commitments        
Derivative        
Derivative liabilities 8,206 5,173    
Recurring Fair Value Measurements | Forward delivery commitments        
Derivative        
Derivative assets   1,602    
Recurring Fair Value Measurements | Interest rate lock commitments        
Derivative        
Derivative assets 12,206 1,518    
Recurring Fair Value Measurements | Level 1        
Assets:        
Trading securities 80 96    
Derivative        
Mortgage loans held for sale 0 0    
Mortgage servicing rights 0 0    
Investment in warrants 0 0    
Total assets at fair value 80 96    
Derivative        
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        
Derivative liabilities 0 0    
Recurring Fair Value Measurements | Level 1 | Forward delivery commitments        
Derivative        
Derivative assets   0    
Recurring Fair Value Measurements | Level 1 | Interest rate lock commitments        
Derivative        
Derivative assets 0 0    
Recurring Fair Value Measurements | Level 2        
Assets:        
Trading securities 0 0    
Derivative        
Mortgage loans held for sale 858,314 845,775    
Mortgage servicing rights 0 0    
Investment in warrants 0 0    
Total assets at fair value 858,314 847,377    
Derivative        
Contingent liabilities due to acquisitions 0 0    
Total liabilities at fair value 8,206 5,173    
Recurring Fair Value Measurements | Level 2 | Forward delivery commitments and best efforts sales commitments        
Derivative        
Derivative liabilities 8,206 5,173    
Recurring Fair Value Measurements | Level 2 | Forward delivery commitments        
Derivative        
Derivative assets   1,602    
Recurring Fair Value Measurements | Level 2 | Interest rate lock commitments        
Derivative        
Derivative assets 0 0    
Recurring Fair Value Measurements | Level 3        
Assets:        
Trading securities 0 0    
Derivative        
Mortgage loans held for sale 0 0    
Mortgage servicing rights 1,112,161 1,139,539    
Investment in warrants 961 961    
Total assets at fair value 1,125,328 1,142,018    
Derivative        
Contingent liabilities due to acquisitions 2,218 526    
Total liabilities at fair value 2,218 526    
Recurring Fair Value Measurements | Level 3 | Forward delivery commitments and best efforts sales commitments        
Derivative        
Derivative liabilities 0 0    
Recurring Fair Value Measurements | Level 3 | Forward delivery commitments        
Derivative        
Derivative assets   0    
Recurring Fair Value Measurements | Level 3 | Interest rate lock commitments        
Derivative        
Derivative assets $ 12,206 $ 1,518