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Investments (Unrealized Gain (Loss) On Investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | $ 535,101 | $ 525,717
Gross unrealized gains | 1,008 | 8,760
Gross unrealized losses | (24,632) | (4,666)
Fair value | 511,477 | 529,811
U.S Treasury Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 84,725 | 84,896
Gross unrealized gains |  | 88
Gross unrealized losses | (5,713) | (698)
Fair value | 79,012 | 84,286
Municipal [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 205,912 | 206,501
Gross unrealized gains | 811 | 7,148
Gross unrealized losses | (10,920) | (1,422)
Fair value | 195,803 | 212,227
Corporate [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 25,300 | 24,794
Gross unrealized gains | 69 | 333
Gross unrealized losses | (639) | (188)
Fair value | 24,730 | 24,939
Agency Mortgage-Backed & asset-backed [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 174,496 | 178,614
Gross unrealized gains | 117 | 1,157
Gross unrealized losses | (6,208) | (2,086)
Fair value | 168,405 | 177,685
Non-Agency mortgage & asset-backed [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 44,668 | 30,912
Gross unrealized gains | 11 | 34
Gross unrealized losses | (1,152) | (272)
Fair value | $ 43,527 | $ 30,674

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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