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Fair Value Measurements - Assets and Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities $ 2,626,783 $ 1,690,112
Equity securities 19,250 1,270
Derivative assets 209,148 105,164
Derivative liabilities 197,395 90,834
Foreclosed assets 11,119 11,651
Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 449,400 253,878
Equity securities 19,250 1,270
Derivative assets 0 0
Derivative liabilities 0 0
Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 2,177,383 1,436,234
Equity securities 0 0
Derivative assets 208,316 101,754
Derivative liabilities 193,670 88,835
Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Equity securities 0 0
Derivative assets 0 0
Derivative liabilities 0 0
U.S. Treasury obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 335,031 253,878
U.S. Treasury obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 335,031 253,878
U.S. Treasury obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
U.S. Treasury obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Government-agency obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 166,202 27,498
Government-agency obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 114,369 0
Government-agency obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 51,833 27,498
Government-agency obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Mortgage-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 1,849,184 1,285,609
Mortgage-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Mortgage-backed securities | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 1,849,184 1,285,609
Mortgage-backed securities | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Asset-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 53,053 32,235
Asset-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Asset-backed securities | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 53,053 32,235
Asset-backed securities | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
State and municipal obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 126,558 56,584
State and municipal obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
State and municipal obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 126,558 56,584
State and municipal obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Corporate obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 96,755 34,308
Corporate obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Corporate obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 96,755 34,308
Corporate obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 2,626,783 1,690,112
Equity securities 19,250 1,270
Derivative assets 208,316 101,754
Total assets, fair value disclosure 2,854,349 1,793,136
Derivative liabilities 193,670 88,835
Measured on a Recurring Basis | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 449,400 253,878
Equity securities 19,250 1,270
Derivative assets 0 0
Total assets, fair value disclosure 468,650 255,148
Derivative liabilities 0 0
Measured on a Recurring Basis | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 2,177,383 1,436,234
Equity securities 0 0
Derivative assets 208,316 101,754
Total assets, fair value disclosure 2,385,699 1,537,988
Derivative liabilities 193,670 88,835
Measured on a Recurring Basis | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Equity securities 0 0
Derivative assets 0 0
Total assets, fair value disclosure 0 0
Derivative liabilities 0 0
Measured on a Recurring Basis | U.S. Treasury obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 335,031 253,878
Measured on a Recurring Basis | U.S. Treasury obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 335,031 253,878
Measured on a Recurring Basis | U.S. Treasury obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | U.S. Treasury obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | Government-agency obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 166,202 27,498
Measured on a Recurring Basis | Government-agency obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 114,369 0
Measured on a Recurring Basis | Government-agency obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 51,833 27,498
Measured on a Recurring Basis | Government-agency obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | Mortgage-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 1,849,184 1,285,609
Measured on a Recurring Basis | Mortgage-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | Mortgage-backed securities | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 1,849,184 1,285,609
Measured on a Recurring Basis | Mortgage-backed securities | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | Asset-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 53,053 32,235
Measured on a Recurring Basis | Asset-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | Asset-backed securities | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 53,053 32,235
Measured on a Recurring Basis | Asset-backed securities | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | State and municipal obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 126,558 56,584
Measured on a Recurring Basis | State and municipal obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | State and municipal obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 126,558 56,584
Measured on a Recurring Basis | State and municipal obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | Corporate obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 96,755 34,308
Measured on a Recurring Basis | Corporate obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Recurring Basis | Corporate obligations | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 96,755 34,308
Measured on a Recurring Basis | Corporate obligations | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total available for sale debt securities 0 0
Measured on a Non-Recurring Basis    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets, fair value disclosure 29,532 35,790
Loans measured for impairment based on the fair value of the underlying collateral 18,413 24,139
Foreclosed assets 11,119 11,651
Measured on a Non-Recurring Basis | Quoted Prices in Active  Markets for Identical Assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets, fair value disclosure 0 0
Loans measured for impairment based on the fair value of the underlying collateral 0 0
Foreclosed assets 0 0
Measured on a Non-Recurring Basis | Significant Other Observable  Inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets, fair value disclosure 0 0
Loans measured for impairment based on the fair value of the underlying collateral 0 0
Foreclosed assets 0 0
Measured on a Non-Recurring Basis | Significant Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total assets, fair value disclosure 29,532 35,790
Loans measured for impairment based on the fair value of the underlying collateral 18,413 24,139
Foreclosed assets $ 11,119 $ 11,651