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Securities (Schedule of Held-to-maturity, Unrealized Loss on Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Held-to-maturity:
Less than 12 Months, Fair Value	$ 234,029	$ 26,074
Less than 12 Months, Gross Unrealized Losses	$ (25,059)	$ (106)
Less than 12 Months, Number of Securities	48	14
12 Months or Greater, Fair Value	$ 22,946
12 Months or Greater, Gross Unrealized Losses	$ (5,069)
12 Months or Greater, Number of Securities	9
Total, Fair Value	$ 256,975	$ 26,074
Total, Gross Unrealized Losses	$ (30,128)	$ (106)
Total, Number of Securities	57	14
US Treasury Securities [Member]
Held-to-maturity:
Less than 12 Months, Fair Value	$ 144,257
Less than 12 Months, Gross Unrealized Losses	$ (6,095)
Less than 12 Months, Number of Securities	4
Total, Fair Value	$ 144,257
Total, Gross Unrealized Losses	$ (6,095)
Total, Number of Securities	4
US Government-sponsored Enterprises Debt Securities [Member]
Held-to-maturity:
Less than 12 Months, Fair Value	$ 19,613	$ 21,901
Less than 12 Months, Gross Unrealized Losses	$ (3,763)	$ (87)
Less than 12 Months, Number of Securities	5	8
12 Months or Greater, Fair Value	$ 22,491
12 Months or Greater, Gross Unrealized Losses	$ (4,972)
12 Months or Greater, Number of Securities	8
Total, Fair Value	$ 42,104	$ 21,901
Total, Gross Unrealized Losses	$ (8,735)	$ (87)
Total, Number of Securities	13	8
Municipal securities [Member]
Held-to-maturity:
Less than 12 Months, Fair Value	$ 43,149	$ 4,173
Less than 12 Months, Gross Unrealized Losses	$ (10,233)	$ (19)
Less than 12 Months, Number of Securities	34	6
12 Months or Greater, Fair Value	$ 455
12 Months or Greater, Gross Unrealized Losses	$ (97)
12 Months or Greater, Number of Securities	1
Total, Fair Value	$ 43,604	$ 4,173
Total, Gross Unrealized Losses	$ (10,330)	$ (19)
Total, Number of Securities	35	6
Mortgage-backed securities (GSEs) [Member]
Held-to-maturity:
Less than 12 Months, Fair Value	$ 27,010
Less than 12 Months, Gross Unrealized Losses	$ (4,968)
Less than 12 Months, Number of Securities	5
Total, Fair Value	$ 27,010
Total, Gross Unrealized Losses	$ (4,968)
Total, Number of Securities	5

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- Definition

Number of investments in debt securities held to maturity, in unrealized loss position, for 12 months or longer, without allowance for credit loss.

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