Investment Securities (Investments Gross Unrealized Losses and Fair Value) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	$ 15	$ 8
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	804,600	835,522
Securities available for sale, 12 months or longer, Unrealized Losses	127,433	151,546
Securities available for sale, Fair Value, Total	804,615	835,530
Securities available for sale, Unrealized Losses, Total	127,433	151,546
Total AFS debt securities with unrealized losses, Less than 12 months, Fair Value	15	8
Total AFS debt securities with unrealized losses, Less than 12 months, Unrealized Losses	0	0
Total AFS debt securities with unrealized losses, 12 months or longer, Fair Value	804,600	835,522
Total AFS debt securities with unrealized losses, 12 months or longer, Unrealized Losses	127,433	151,546
Total AFS debt securities with unrealized losses, Fair Value	804,615	835,530
Total AFS debt securities with unrealized losses, Unrealized Losses	127,433	151,546
Other Debt Obligations [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Total AFS debt securities with unrealized losses, Less than 12 months, Fair Value	0
Total AFS debt securities with unrealized losses, Less than 12 months, Unrealized Losses	0
Total AFS debt securities with unrealized losses, 12 months or longer, Fair Value	0
Total AFS debt securities with unrealized losses, 12 months or longer, Unrealized Losses	0
Total AFS debt securities with unrealized losses, Fair Value	0
Total AFS debt securities with unrealized losses, Unrealized Losses	0
U.S. Government Agency And Government Sponsored Enterprises [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	0	0
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	22,588	21,811
Securities available for sale, 12 months or longer, Unrealized Losses	1,947	2,724
Securities available for sale, Fair Value, Total	22,588	21,811
Securities available for sale, Unrealized Losses, Total	1,947	2,724
Mortgage-Backed Securities [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	15	8
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	782,012	813,711
Securities available for sale, 12 months or longer, Unrealized Losses	125,486	148,822
Securities available for sale, Fair Value, Total	782,027	813,719
Securities available for sale, Unrealized Losses, Total	125,486	148,822
Mortgage-Backed Securities [Member] \| Federal National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	0	8
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	371,447	388,191
Securities available for sale, 12 months or longer, Unrealized Losses	49,964	61,219
Securities available for sale, Fair Value, Total	371,447	388,199
Securities available for sale, Unrealized Losses, Total	49,964	61,219
Mortgage-Backed Securities [Member] \| Federal Home Loan Mortgage Corporation [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	0	0
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	301,234	314,854
Securities available for sale, 12 months or longer, Unrealized Losses	50,573	59,665
Securities available for sale, Fair Value, Total	301,234	314,854
Securities available for sale, Unrealized Losses, Total	50,573	59,665
Mortgage-Backed Securities [Member] \| Government National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	15	0
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	86,117	86,475
Securities available for sale, 12 months or longer, Unrealized Losses	19,415	21,409
Securities available for sale, Fair Value, Total	86,132	86,475
Securities available for sale, Unrealized Losses, Total	19,415	21,409
Collateralized Mortgage Obligations [Member] \| Federal National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	0	0
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	8,204	8,611
Securities available for sale, 12 months or longer, Unrealized Losses	1,927	2,343
Securities available for sale, Fair Value, Total	8,204	8,611
Securities available for sale, Unrealized Losses, Total	1,927	2,343
Collateralized Mortgage Obligations [Member] \| Federal Home Loan Mortgage Corporation [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Less than 12 months, Fair Value	0	0
Securities available for sale, Less than 12 months, Unrealized Losses	0	0
Securities available for sale, 12 months or longer, Fair Value	15,010	15,580
Securities available for sale, 12 months or longer, Unrealized Losses	3,607	4,186
Securities available for sale, Fair Value, Total	15,010	15,580
Securities available for sale, Unrealized Losses, Total	$ 3,607	$ 4,186

Debt securities available for sale and held to maturity securities.

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Amount of accumulated pre-tax unrealized loss on securities.

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