XML 92 R79.htm IDEA: XBRL DOCUMENT v3.22.2.2
Fair Value - Assets and liabilities measured at fair value on a recurring basis (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Fair Value      
Percentage of loans individually evaluated based on fair value of collateral 60.00%    
Assets      
Derivative financial instruments $ 1,100,000   $ 408,800
Trading securities 51,940   77,689
Securities available for sale 5,369,610   5,193,478
SBA servicing assets   $ 7,000  
Liabilities      
Derivative financial instruments 1,100,000   408,800
U.S. Treasuries      
Assets      
Securities available for sale 264,425    
U.S. Government agencies      
Assets      
Trading securities 12,017   5,154
Securities available for sale 218,623   97,117
Residential mortgage-backed securities issued by U.S. government agencies or sponsored enterprises      
Assets      
Trading securities 11,556   6,853
Securities available for sale 1,730,067   1,831,039
Commercial mortgage-backed securities issued by U.S. government agencies or sponsored enterprises      
Assets      
Trading securities 3,116   29,667
Securities available for sale 1,027,776   1,207,241
State and municipal obligations      
Assets      
Trading securities 18,060   20,798
Securities available for sale 1,003,318   812,689
Corporate securities.      
Assets      
Securities available for sale 33,353   18,734
Significant Other Observable Inputs (Level 2)      
Assets      
Loans held for sale 34,477   191,723
Trading securities 51,940   77,689
Significant Unobservable Inputs (Level 3)      
Assets      
Mortgage servicing rights 90,459   65,620
SBA servicing assets 6,981    
Changes in fair value of assets      
Changes in hierarchy classifications of Level 3 assets 0    
Changes in hierarchy classifications of Level 3 liabilities 0    
Recurring basis      
Assets      
Derivative financial instruments 1,083,803   414,742
Loans held for sale 34,477   191,723
Trading securities 51,940   77,689
Securities available for sale 5,369,610   5,193,478
Mortgage servicing rights 90,459   65,620
SBA servicing assets 6,981    
Fair value of Assets, Total 6,637,270   5,943,252
Liabilities      
Derivative financial instruments 1,082,948   410,137
Recurring basis | U.S. Treasuries      
Assets      
Securities available for sale 264,425    
Recurring basis | U.S. Government agencies      
Assets      
Securities available for sale 218,623   97,117
Recurring basis | Residential mortgage-backed securities issued by U.S. government agencies or sponsored enterprises      
Assets      
Securities available for sale 1,730,067   1,831,039
Recurring basis | Residential Collateralized Mortgage-Obligations Issued By U.S. Government Agencies Or Sponsored Enterprises [Member]      
Assets      
Securities available for sale 627,812   725,995
Recurring basis | Commercial mortgage-backed securities issued by U.S. government agencies or sponsored enterprises      
Assets      
Securities available for sale 1,027,776   1,207,241
Recurring basis | State and municipal obligations      
Assets      
Securities available for sale 1,003,318   812,689
Recurring basis | Mortgage-backed securities      
Assets      
Securities available for sale 464,236   500,663
Recurring basis | Corporate securities.      
Assets      
Securities available for sale 33,353   18,734
Recurring basis | Significant Other Observable Inputs (Level 2)      
Assets      
Derivative financial instruments 1,083,803   414,742
Loans held for sale 34,477   191,723
Trading securities 51,940   77,689
Securities available for sale 5,369,610   5,193,478
Fair value of Assets, Total 6,539,830   5,877,632
Liabilities      
Derivative financial instruments 1,082,948   410,137
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Treasuries      
Assets      
Securities available for sale 264,425    
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Government agencies      
Assets      
Securities available for sale 218,623   97,117
Recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities issued by U.S. government agencies or sponsored enterprises      
Assets      
Securities available for sale 1,730,067   1,831,039
Recurring basis | Significant Other Observable Inputs (Level 2) | Residential Collateralized Mortgage-Obligations Issued By U.S. Government Agencies Or Sponsored Enterprises [Member]      
Assets      
Securities available for sale 627,812   725,995
Recurring basis | Significant Other Observable Inputs (Level 2) | Commercial mortgage-backed securities issued by U.S. government agencies or sponsored enterprises      
Assets      
Securities available for sale 1,027,776   1,207,241
Recurring basis | Significant Other Observable Inputs (Level 2) | State and municipal obligations      
Assets      
Securities available for sale 1,003,318   812,689
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities      
Assets      
Securities available for sale 464,236   500,663
Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate securities.      
Assets      
Securities available for sale 33,353   18,734
Recurring basis | Significant Unobservable Inputs (Level 3)      
Assets      
Mortgage servicing rights 90,459   65,620
SBA servicing assets 6,981    
Fair value of Assets, Total $ 97,440   $ 65,620
Changes in fair value of assets      
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Revenue from Contract with Customer, Excluding Assessed Tax    
Unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities $ 0    
Recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage Servicing Rights      
Changes in fair value of assets      
Fair value of assets at the beginning of the period 65,620    
Servicing assets that resulted from transfers of financial assets 14,617    
Changes in fair value assets due to valuation inputs or assumptions 18,274    
Changes in fair value due to decay (8,052)    
Fair value of assets at the end of the period $ 90,459