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Investments (Schedule Of Unrealized Loss On Investments) (Details) $ in Thousands | Mar. 31, 2023 USD ($) security | Dec. 31, 2022 USD ($) security
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months: Fair Value | $ 52,945 | $ 208,157
Less than 12 months: Unrealized Losses | $ (2,642) | $ (16,459)
Less than 12 months: Count | security | 107 | 309
12 months or more: Fair Value | $ 395,648 | $ 266,690
12 months or more: Unrealized Losses | $ (49,723) | $ (45,072)
12 months or more: Count | security | 464 | 282
Fair Value | $ 448,593 | $ 474,847
Unrealized Losses | $ (52,365) | $ (61,531)
Count | security | 571 | 591
U.S Treasury [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months: Fair Value |  | $ 17,598
Less than 12 months: Unrealized Losses |  | $ (183)
Less than 12 months: Count | security |  | 3
12 months or more: Fair Value | $ 74,263 | $ 72,659
12 months or more: Unrealized Losses | $ (9,762) | $ (11,540)
12 months or more: Count | security | 28 | 28
Fair Value | $ 74,263 | $ 90,257
Unrealized Losses | $ (9,762) | $ (11,723)
Count | security | 28 | 31
Municipal [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months: Fair Value | $ 1,332 | $ 73,644
Less than 12 months: Unrealized Losses | $ (171) | $ (9,586)
Less than 12 months: Count | security | 3 | 90
12 months or more: Fair Value | $ 144,173 | $ 80,503
12 months or more: Unrealized Losses | $ (24,419) | $ (20,981)
12 months or more: Count | security | 173 | 104
Fair Value | $ 145,505 | $ 154,147
Unrealized Losses | $ (24,590) | $ (30,566)
Count | security | 176 | 194
Corporate [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months: Fair Value | $ 7,462 | $ 12,221
Less than 12 months: Unrealized Losses | $ (576) | $ (851)
Less than 12 months: Count | security | 17 | 25
12 months or more: Fair Value | $ 16,537 | $ 10,368
12 months or more: Unrealized Losses | $ (1,806) | $ (1,226)
12 months or more: Count | security | 34 | 21
Fair Value | $ 23,999 | $ 22,589
Unrealized Losses | $ (2,382) | $ (2,077)
Count | security | 51 | 46
Agency Mortgage-Backed & Asset-Backed [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months: Fair Value | $ 17,046 | $ 55,393
Less than 12 months: Unrealized Losses | $ (479) | $ (2,747)
Less than 12 months: Count | security | 58 | 139
12 months or more: Fair Value | $ 124,043 | $ 88,953
12 months or more: Unrealized Losses | $ (10,431) | $ (9,611)
12 months or more: Count | security | 192 | 113
Fair Value | $ 141,089 | $ 144,346
Unrealized Losses | $ (10,910) | $ (12,358)
Count | security | 250 | 252
Non-Agency Mortgage & Asset-Backed [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months: Fair Value | $ 27,105 | $ 49,301
Less than 12 months: Unrealized Losses | $ (1,416) | $ (3,092)
Less than 12 months: Count | security | 29 | 52
12 months or more: Fair Value | $ 36,632 | $ 14,207
12 months or more: Unrealized Losses | $ (3,305) | $ (1,715)
12 months or more: Count | security | 37 | 16
Fair Value | $ 63,737 | $ 63,508
Unrealized Losses | $ (4,721) | $ (4,807)
Count | security | 66 | 68

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