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
Jun. 30, 2022
Dec. 31, 2021
Jun. 30, 2021
Dec. 31, 2020
Assets:        
Trading securities $ 92 $ 107    
Derivative        
Derivative assets 23,080 27,961    
Mortgage loans held for sale 1,249,809 2,204,216 $ 2,153,990 $ 2,368,777
Mortgage servicing rights 1,030,310 675,340    
Derivative        
Derivative liabilities 4,121 2,079    
Contingent liabilities due to acquisitions 1,557 59,500    
Recurring Fair Value Measurements        
Assets:        
Trading securities 92 107    
Derivative        
Mortgage loans held for sale 1,249,809 2,204,216    
Mortgage servicing rights 1,030,310 675,340    
Total assets at fair value 2,303,291 2,907,624    
Derivative        
Contingent liabilities due to acquisitions 1,557 59,500    
Total liabilities at fair value 5,678 61,579    
Recurring Fair Value Measurements | Forward delivery commitments        
Derivative        
Derivative assets 8,480 5,842    
Derivative        
Derivative liabilities 2,765 2,079    
Recurring Fair Value Measurements | Interest rate lock commitments        
Derivative        
Derivative assets 14,600 22,119    
Recurring Fair Value Measurements | Best efforts sales commitments        
Derivative        
Derivative liabilities 1,356      
Recurring Fair Value Measurements | Level 1        
Assets:        
Trading securities 92 107    
Derivative        
Mortgage loans held for sale 0 0    
Mortgage servicing rights 0 0    
Total assets at fair value 92 107    
Derivative        
Contingent liabilities due to acquisitions 0 0    
Total liabilities at fair value 0 0    
Recurring Fair Value Measurements | Level 1 | Forward delivery commitments        
Derivative        
Derivative assets 0 0    
Derivative        
Derivative liabilities 0 0    
Recurring Fair Value Measurements | Level 1 | Interest rate lock commitments        
Derivative        
Derivative assets 0 0    
Recurring Fair Value Measurements | Level 1 | Best efforts sales commitments        
Derivative        
Derivative liabilities 0      
Recurring Fair Value Measurements | Level 2        
Assets:        
Trading securities 0 0    
Derivative        
Mortgage loans held for sale 1,249,809 2,204,216    
Mortgage servicing rights 0 0    
Total assets at fair value 1,258,289 2,210,058    
Derivative        
Contingent liabilities due to acquisitions 0 0    
Total liabilities at fair value 4,121 2,079    
Recurring Fair Value Measurements | Level 2 | Forward delivery commitments        
Derivative        
Derivative assets 8,480 5,842    
Derivative        
Derivative liabilities 2,765 2,079    
Recurring Fair Value Measurements | Level 2 | Interest rate lock commitments        
Derivative        
Derivative assets 0 0    
Recurring Fair Value Measurements | Level 2 | Best efforts sales commitments        
Derivative        
Derivative liabilities 1,356      
Recurring Fair Value Measurements | Level 3        
Assets:        
Trading securities 0 0    
Derivative        
Mortgage loans held for sale 0 0    
Mortgage servicing rights 1,030,310 675,340    
Total assets at fair value 1,044,910 697,459    
Derivative        
Contingent liabilities due to acquisitions 1,557 59,500    
Total liabilities at fair value 1,557 59,500    
Recurring Fair Value Measurements | Level 3 | Forward delivery commitments        
Derivative        
Derivative assets 0 0    
Derivative        
Derivative liabilities 0 0    
Recurring Fair Value Measurements | Level 3 | Interest rate lock commitments        
Derivative        
Derivative assets 14,600 $ 22,119    
Recurring Fair Value Measurements | Level 3 | Best efforts sales commitments        
Derivative        
Derivative liabilities $ 0