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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value $ 982,573 $ 1,042,859
Mortgage loans held for sale, measured at fair value 24,054 40,196
Obligations of U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 197,855 196,454
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 764,264 824,962
Individual name issuer trust preferred debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 8,800 9,138
Corporate bonds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 11,654 12,305
Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Mortgage loans held for sale, measured at fair value 24,054 40,196
Derivative assets 48,098 33,688
Total assets at fair value on a recurring basis 1,054,725 1,116,743
Derivative liabilities 79,967 38,536
Total liabilities at fair value on a recurring basis 79,967 38,536
Recurring [Member] | Obligations of U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 197,855 196,454
Recurring [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 764,264 824,962
Recurring [Member] | Individual name issuer trust preferred debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 8,800 9,138
Recurring [Member] | Corporate bonds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 11,654 12,305
Recurring [Member] | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Mortgage loans held for sale, measured at fair value 0 0
Derivative assets 0 0
Total assets at fair value on a recurring basis 0 0
Derivative liabilities 0 0
Total liabilities at fair value on a recurring basis 0 0
Recurring [Member] | Level 1 [Member] | Obligations of U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 0 0
Recurring [Member] | Level 1 [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 0 0
Recurring [Member] | Level 1 [Member] | Individual name issuer trust preferred debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 0 0
Recurring [Member] | Level 1 [Member] | Corporate bonds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 0 0
Recurring [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Mortgage loans held for sale, measured at fair value 24,054 40,196
Derivative assets 48,098 33,688
Total assets at fair value on a recurring basis 1,054,725 1,116,743
Derivative liabilities 79,967 38,536
Total liabilities at fair value on a recurring basis 79,967 38,536
Recurring [Member] | Level 2 [Member] | Obligations of U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 197,855 196,454
Recurring [Member] | Level 2 [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 764,264 824,962
Recurring [Member] | Level 2 [Member] | Individual name issuer trust preferred debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 8,800 9,138
Recurring [Member] | Level 2 [Member] | Corporate bonds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 11,654 12,305
Recurring [Member] | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Mortgage loans held for sale, measured at fair value 0 0
Derivative assets 0 0
Total assets at fair value on a recurring basis 0 0
Derivative liabilities 0 0
Total liabilities at fair value on a recurring basis 0 0
Recurring [Member] | Level 3 [Member] | Obligations of U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 0 0
Recurring [Member] | Level 3 [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 0 0
Recurring [Member] | Level 3 [Member] | Individual name issuer trust preferred debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value 0 0
Recurring [Member] | Level 3 [Member] | Corporate bonds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale debt securities, fair value $ 0 $ 0