XML 125 R114.htm IDEA: XBRL DOCUMENT v3.25.2
FAIR VALUE - Estimated Fair Value and Carrying Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Assets:            
Available-for-sale debt securities (fair value) $ 4,496,803   $ 4,565,302      
Held To Maturity Securities Amortized 307,286   317,786      
Less: allowance for credit losses on held to maturity securities (765)   (802)      
Loans held for investment 12,870,002   12,746,556      
Allowance for loan and lease losses (248,578) $ (247,269) (243,942) $ (254,532) $ (263,592) $ (261,843)
Loans held for investment, net of ACL 12,621,424   12,502,614      
Mortgage servicing rights 24,130 $ 24,624 25,019 $ 25,952 $ 26,355 $ 26,941
Advances from the FHLB:            
Long-term advances from the FHLB 320,000          
Junior subordinated debentures (amortized cost) 0   61,700      
Carrying Reported Amount Fair Value Disclosure [Member]            
Assets:            
Cash and due from banks and money market investments 736,710   1,159,415      
Available-for-sale debt securities (fair value) 4,496,803   4,565,302      
Held To Maturity Securities Amortized 307,286   317,786      
Less: allowance for credit losses on held to maturity securities (765)   (802)      
Investment securities held to maturity, net of ACL 306,521   316,984      
Equity securities (amortized cost) 40,231   47,132      
Other equity securities 4,971   4,886      
Loans held for sale 9,857   15,276      
Loans held for investment 12,870,002   12,746,556      
Allowance for loan and lease losses (248,578)   (243,942)      
Loans held for investment, net of ACL 12,621,424   12,502,614      
Mortgage servicing rights 24,130   25,019      
Derivative Assets 298   318      
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract]            
Deposits 16,554,038   16,871,298      
Advances from the FHLB:            
Long-term advances from the FHLB 320,000   500,000      
Junior subordinated debentures (amortized cost) 0   61,700      
Derivative Liabilities 324   150      
Federal Home Loan Bank Stock 26,100   34,000      
Estimate Of Fair Value Fair Value Disclosure [Member]            
Assets:            
Cash and due from banks and money market investments 736,710   1,159,415      
Available-for-sale debt securities (fair value) 4,496,803   4,565,302      
Investment securities held to maturity, net of ACL 299,846   308,040      
Equity securities (amortized cost) 40,231   47,132      
Other equity securities 4,971   4,886      
Loans held for sale 10,031   15,276      
Loans held for investment, net of ACL 12,499,610   12,406,405      
Mortgage servicing rights 42,617   43,046      
Derivative Assets 298   318      
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract]            
Deposits 16,554,177   16,872,963      
Advances from the FHLB:            
Long-term advances from the FHLB 322,142   500,128      
Junior subordinated debentures (amortized cost) 0   61,752      
Derivative Liabilities 324   150      
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 1 [Member]            
Assets:            
Cash and due from banks and money market investments 736,710   1,159,415      
Available-for-sale debt securities (fair value) 217,432   59,189      
Investment securities held to maturity, net of ACL 0   0      
Equity securities (amortized cost) 0   0      
Other equity securities 4,971   4,886      
Loans held for sale 0   0      
Loans held for investment, net of ACL 0   0      
Mortgage servicing rights 0   0      
Derivative Assets 0   0      
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract]            
Deposits 0   0      
Advances from the FHLB:            
Long-term advances from the FHLB 0   0      
Junior subordinated debentures (amortized cost) 0   0      
Derivative Liabilities 0   0      
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 2 [Member]            
Assets:            
Cash and due from banks and money market investments 0   0      
Available-for-sale debt securities (fair value) 4,273,514   4,499,298      
Investment securities held to maturity, net of ACL 204,140   212,432      
Equity securities (amortized cost) 40,231   47,132      
Other equity securities 0   0      
Loans held for sale 10,031   15,276      
Loans held for investment, net of ACL 0   0      
Mortgage servicing rights 0   0      
Derivative Assets 298   318      
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract]            
Deposits 16,554,177   16,872,963      
Advances from the FHLB:            
Long-term advances from the FHLB 322,142   500,128      
Junior subordinated debentures (amortized cost) 0   0      
Derivative Liabilities 324   150      
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 3 [Member]            
Assets:            
Cash and due from banks and money market investments 0   0      
Available-for-sale debt securities (fair value) 5,857   6,815      
Investment securities held to maturity, net of ACL 95,706   95,608      
Equity securities (amortized cost) 0   0      
Other equity securities 0   0      
Loans held for sale 0   0      
Loans held for investment, net of ACL 12,499,610   12,406,405      
Mortgage servicing rights 42,617   43,046      
Derivative Assets 0   0      
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract]            
Deposits 0   0      
Advances from the FHLB:            
Long-term advances from the FHLB 0   0      
Junior subordinated debentures (amortized cost) 0   61,752      
Derivative Liabilities $ 0   $ 0