v3.21.1

Debt Securities - Available for Sale Securities in Continuous Loss Position (Details) $ in Thousands | Mar. 31, 2021 USD ($) security | Dec. 31, 2020 USD ($) security
--- | --- | ---
Schedule of Available-for-sale Securities |  |
Number of Securities | security | 203 | 57
Less than 12 months, fair value | $ 830,852 | $ 200,831
Less than 12 months, unrealized losses | 17,376 | 895
12 Months or more, fair value | 10,328 | 7,376
12 Months or more, unrealized loss | 450 | 419
Fair Value | 841,180 | 208,207
Unrealized Losses | $ 17,826 | $ 1,314
State and political subdivisions |  |
Schedule of Available-for-sale Securities |  |
Number of Securities | security | 145 | 27
Less than 12 months, fair value | $ 274,770 | $ 31,489
Less than 12 months, unrealized losses | 7,413 | 157
12 Months or more, fair value | 9,468 | 4,065
12 Months or more, unrealized loss | 294 | 326
Fair Value | 284,238 | 35,554
Unrealized Losses | $ 7,707 | $ 483
Mortgage-backed securities |  |
Schedule of Available-for-sale Securities |  |
Number of Securities | security | 8 | 7
Less than 12 months, fair value | $ 20,218 | $ 315
Less than 12 months, unrealized losses | 743 | 1
12 Months or more, fair value | 110 | 0
12 Months or more, unrealized loss | 1 | 0
Fair Value | 20,328 | 315
Unrealized Losses | $ 744 | $ 1
Collateralized mortgage obligations |  |
Schedule of Available-for-sale Securities |  |
Number of Securities | security | 22 | 8
Less than 12 months, fair value | $ 392,272 | $ 133,032
Less than 12 months, unrealized losses | 5,677 | 214
12 Months or more, fair value | 0 | 0
12 Months or more, unrealized loss | 0 | 0
Fair Value | 392,272 | 133,032
Unrealized Losses | $ 5,677 | $ 214
Corporate debt securities |  |
Schedule of Available-for-sale Securities |  |
Number of Securities | security | 28 | 15
Less than 12 months, fair value | $ 143,592 | $ 35,995
Less than 12 months, unrealized losses | 3,543 | 523
12 Months or more, fair value | 750 | 3,311
12 Months or more, unrealized loss | 155 | 93
Fair Value | 144,342 | 39,306
Unrealized Losses | $ 3,698 | $ 616

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details
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