Investment Securities (Investments Gross Unrealized Losses and Fair Value) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
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	$ 148,933	$ 681,223
Total AFS debt securities with unrealized losses, Less than 12 months, Unrealized Losses	2,684	9,046
Total AFS debt securities with unrealized losses, 12 months or longer, Fair Value	206,249	176,627
Total AFS debt securities with unrealized losses, 12 months or longer, Unrealized Losses	45,753	53,433
Total AFS debt securities with unrealized losses, Fair Value	355,182	857,850
Total AFS debt securities with unrealized losses, Unrealized Losses	48,437	62,479
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	17,275	3,652
Total AFS debt securities with unrealized losses, Less than 12 months, Unrealized Losses	217	11
Total AFS debt securities with unrealized losses, 12 months or longer, Fair Value	0	0
Total AFS debt securities with unrealized losses, 12 months or longer, Unrealized Losses	0	0
Total AFS debt securities with unrealized losses, Fair Value	17,275	3,652
Total AFS debt securities with unrealized losses, Unrealized Losses	217	11
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	131,658	677,571
Securities available for sale, Less than 12 months, Unrealized Losses	2,467	9,035
Securities available for sale, 12 months or longer, Fair Value	206,249	176,627
Securities available for sale, 12 months or longer, Unrealized Losses	45,753	53,433
Securities available for sale, Fair Value, Total	337,907	854,198
Securities available for sale, Unrealized Losses, Total	48,220	62,468
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	258,197
Securities available for sale, Less than 12 months, Unrealized Losses	0	3,525
Securities available for sale, 12 months or longer, Fair Value	19,438	19,732
Securities available for sale, 12 months or longer, Unrealized Losses	4,851	5,922
Securities available for sale, Fair Value, Total	19,438	277,929
Securities available for sale, Unrealized Losses, Total	4,851	9,447
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	228,956
Securities available for sale, Less than 12 months, Unrealized Losses	0	2,941
Securities available for sale, 12 months or longer, Fair Value	67,826	75,647
Securities available for sale, 12 months or longer, Unrealized Losses	17,666	22,414
Securities available for sale, Fair Value, Total	67,826	304,603
Securities available for sale, Unrealized Losses, Total	17,666	25,355
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	131,658	113,772
Securities available for sale, Less than 12 months, Unrealized Losses	2,467	2,120
Securities available for sale, 12 months or longer, Fair Value	107,980	69,935
Securities available for sale, 12 months or longer, Unrealized Losses	20,032	21,090
Securities available for sale, Fair Value, Total	239,638	183,707
Securities available for sale, Unrealized Losses, Total	22,499	23,210
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	9,742
Securities available for sale, Less than 12 months, Unrealized Losses	0	16
Securities available for sale, 12 months or longer, Fair Value	3,635	3,658
Securities available for sale, 12 months or longer, Unrealized Losses	1,012	1,304
Securities available for sale, Fair Value, Total	3,635	13,400
Securities available for sale, Unrealized Losses, Total	1,012	1,320
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	2,411
Securities available for sale, Less than 12 months, Unrealized Losses	0	29
Securities available for sale, 12 months or longer, Fair Value	7,370	7,655
Securities available for sale, 12 months or longer, Unrealized Losses	2,192	2,703
Securities available for sale, Fair Value, Total	7,370	10,066
Securities available for sale, Unrealized Losses, Total	2,192	2,732
Collateralized Mortgage Obligations [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	0	64,493
Securities available for sale, Less than 12 months, Unrealized Losses	0	404
Securities available for sale, 12 months or longer, Fair Value	0
Securities available for sale, 12 months or longer, Unrealized Losses	0
Securities available for sale, Fair Value, Total	0	64,493
Securities available for sale, Unrealized Losses, Total	$ 0	$ 404

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