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Loans Held for Investment and Allowance for Credit Losses on Loans - Gross Loans Held for Investment by Year of Origination and Internally Assigned Credit Grades (Detail) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable Recorded Investment [Line Items] |  |
2021 | $ 1,337,163 |
2020 | 1,620,012 |
2019 | 961,728 |
2018 | 530,937 |
2017 | 376,501 |
Prior | 825,883 |
Revolving Loans Amortized Cost Basis | 706,166 |
Total Loans | 6,358,390 | $ 6,394,506
Pegasus Bank [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 41,579 |
2020 | 118,879 |
2019 | 80,001 |
2018 | 29,025 |
2017 | 36,489 |
Prior | 63,566 |
Revolving Loans Amortized Cost Basis | 174,954 |
Total Loans | 544,493 | 554,548
Pegasus Bank [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 30,903 |
2020 | 93,796 |
2019 | 57,518 |
2018 | 25,501 |
2017 | 17,290 |
Prior | 54,093 |
Revolving Loans Amortized Cost Basis | 117,769 |
Total Loans | 396,870 |
Pegasus Bank [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 10,555 |
2020 | 24,966 |
2019 | 22,483 |
2018 | 3,524 |
2017 | 19,199 |
Prior | 8,146 |
Revolving Loans Amortized Cost Basis | 57,185 |
Total Loans | 146,058 |
Pegasus Bank [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 121 |
2020 | 117 |
Prior | 1,327 |
Total Loans | 1,565 |
Real Estate [Member] | Pegasus Bank [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Total Loans | 294,000 |
Real Estate [Member] | Farmland [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 17,650 |
2020 | 61,393 |
2019 | 56,028 |
2018 | 25,807 |
2017 | 20,252 |
Prior | 50,633 |
Revolving Loans Amortized Cost Basis | 20,112 |
Total Loans | 251,875 | 252,958
Real Estate [Member] | Farmland [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 12,125 |
2020 | 46,945 |
2019 | 25,602 |
2018 | 16,291 |
2017 | 13,155 |
Prior | 35,907 |
Revolving Loans Amortized Cost Basis | 9,321 |
Total Loans | 159,346 |
Real Estate [Member] | Farmland [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 4,126 |
2020 | 11,817 |
2019 | 30,125 |
2018 | 6,254 |
2017 | 5,959 |
Prior | 13,371 |
Revolving Loans Amortized Cost Basis | 8,506 |
Total Loans | 80,158 |
Real Estate [Member] | Farmland [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 1,399 |
2020 | 2,217 |
2019 | 287 |
2018 | 74 |
2017 | 842 |
Prior | 1,116 |
Revolving Loans Amortized Cost Basis | 2,007 |
Total Loans | 7,942 |
Real Estate [Member] | Farmland [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2020 | 414 |
2019 | 14 |
2018 | 3,188 |
2017 | 296 |
Prior | 239 |
Revolving Loans Amortized Cost Basis | 278 |
Total Loans | 4,429 |
Real Estate [Member] | Commercial Real Estate Owner Occupied [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 27,780 |
2020 | 190,654 |
2019 | 116,935 |
2018 | 74,399 |
2017 | 47,781 |
Prior | 158,324 |
Revolving Loans Amortized Cost Basis | 20,779 |
Total Loans | 636,652 | 641,987
Real Estate [Member] | Commercial Real Estate Owner Occupied [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 23,563 |
2020 | 146,668 |
2019 | 86,383 |
2018 | 63,000 |
2017 | 37,685 |
Prior | 117,044 |
Revolving Loans Amortized Cost Basis | 16,271 |
Total Loans | 490,614 |
Real Estate [Member] | Commercial Real Estate Owner Occupied [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 4,208 |
2020 | 40,127 |
2019 | 30,459 |
2018 | 10,616 |
2017 | 9,613 |
Prior | 37,459 |
Revolving Loans Amortized Cost Basis | 4,201 |
Total Loans | 136,683 |
Real Estate [Member] | Commercial Real Estate Owner Occupied [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 9 |
2020 | 3,825 |
2019 | 30 |
2018 | 466 |
2017 | 483 |
Prior | 3,573 |
Total Loans | 8,386 |
Real Estate [Member] | Commercial Real Estate Owner Occupied [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2020 | 34 |
2019 | 63 |
2018 | 317 |
Prior | 248 |
Revolving Loans Amortized Cost Basis | 307 |
Total Loans | 969 |
Real Estate [Member] | Commercial Real Estate Non-Owner Occupied [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 64,949 |
2020 | 300,310 |
2019 | 202,955 |
2018 | 99,989 |
2017 | 84,374 |
Prior | 190,968 |
Revolving Loans Amortized Cost Basis | 16,443 |
Total Loans | 959,988 | 971,158
Real Estate [Member] | Commercial Real Estate Non-Owner Occupied [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 50,243 |
2020 | 236,739 |
2019 | 154,498 |
2018 | 73,368 |
2017 | 64,959 |
Prior | 143,281 |
Revolving Loans Amortized Cost Basis | 11,514 |
Total Loans | 734,602 |
Real Estate [Member] | Commercial Real Estate Non-Owner Occupied [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 7,968 |
2020 | 58,067 |
2019 | 45,308 |
2018 | 26,102 |
2017 | 17,806 |
Prior | 47,430 |
Revolving Loans Amortized Cost Basis | 4,929 |
Total Loans | 207,610 |
Real Estate [Member] | Commercial Real Estate Non-Owner Occupied [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 6,738 |
2020 | 785 |
2019 | 3,063 |
2018 | 519 |
2017 | 1,609 |
Prior | 81 |
Total Loans | 12,795 |
Real Estate [Member] | Commercial Real Estate Non-Owner Occupied [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2020 | 4,719 |
2019 | 86 |
Prior | 176 |
Total Loans | 4,981 |
Real Estate [Member] | Construction and Development Less than 60 Months [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 51,654 |
2020 | 105,056 |
2019 | 72,223 |
2018 | 12,545 |
2017 | 4,498 |
Prior | 3,835 |
Revolving Loans Amortized Cost Basis | 8,774 |
Total Loans | 258,585 | 229,615
Real Estate [Member] | Construction and Development Less than 60 Months [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 45,528 |
2020 | 92,005 |
2019 | 60,758 |
2018 | 11,413 |
2017 | 3,686 |
Prior | 3,077 |
Revolving Loans Amortized Cost Basis | 7,971 |
Total Loans | 224,438 |
Real Estate [Member] | Construction and Development Less than 60 Months [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 4,073 |
2020 | 11,256 |
2019 | 11,272 |
2018 | 1,116 |
2017 | 746 |
Prior | 758 |
Revolving Loans Amortized Cost Basis | 803 |
Total Loans | 30,024 |
Real Estate [Member] | Construction and Development Less than 60 Months [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 2,053 |
2020 | 1,795 |
2019 | 131 |
2018 | 8 |
2017 | 45 |
Total Loans | 4,032 |
Real Estate [Member] | Construction and Development Less than 60 Months [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2019 | 62 |
2018 | 8 |
2017 | 21 |
Total Loans | 91 |
Real Estate [Member] | Construction Residential Real Estate Less than 60 Months [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 52,451 |
2020 | 131,915 |
2019 | 155 |
2018 | 179 |
2017 | 20 |
Prior | 498 |
Revolving Loans Amortized Cost Basis | 10,878 |
Total Loans | 196,096 | 206,195
Real Estate [Member] | Construction Residential Real Estate Less than 60 Months [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 44,635 |
2020 | 107,546 |
2019 | 155 |
2018 | 69 |
2017 | 20 |
Prior | 36 |
Revolving Loans Amortized Cost Basis | 10,678 |
Total Loans | 163,139 |
Real Estate [Member] | Construction Residential Real Estate Less than 60 Months [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 7,530 |
2020 | 23,822 |
2018 | 110 |
Prior | 462 |
Revolving Loans Amortized Cost Basis | 200 |
Total Loans | 32,124 |
Real Estate [Member] | Construction Residential Real Estate Less than 60 Months [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 286 |
2020 | 547 |
Total Loans | 833 |
Real Estate [Member] | Residential Real Estate First Lien [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 74,893 |
2020 | 243,548 |
2019 | 141,124 |
2018 | 95,896 |
2017 | 71,432 |
Prior | 217,256 |
Total Loans | 844,149 | 853,316
Real Estate [Member] | Residential Real Estate First Lien [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 68,977 |
2020 | 214,495 |
2019 | 122,472 |
2018 | 74,112 |
2017 | 58,362 |
Prior | 166,467 |
Total Loans | 704,885 |
Real Estate [Member] | Residential Real Estate First Lien [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 5,180 |
2020 | 26,051 |
2019 | 15,445 |
2018 | 19,158 |
2017 | 11,149 |
Prior | 42,497 |
Total Loans | 119,480 |
Real Estate [Member] | Residential Real Estate First Lien [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 687 |
2020 | 2,590 |
2019 | 2,548 |
2018 | 2,128 |
2017 | 1,721 |
Prior | 5,593 |
Total Loans | 15,267 |
Real Estate [Member] | Residential Real Estate First Lien [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 49 |
2020 | 412 |
2019 | 659 |
2018 | 498 |
2017 | 200 |
Prior | 2,699 |
Total Loans | 4,517 |
Real Estate [Member] | Residential Real Estate All Other [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 4,457 |
2020 | 23,045 |
2019 | 14,882 |
2018 | 11,606 |
2017 | 7,446 |
Prior | 19,452 |
Revolving Loans Amortized Cost Basis | 84,625 |
Total Loans | 165,513 | 168,081
Real Estate [Member] | Residential Real Estate All Other [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 3,747 |
2020 | 19,180 |
2019 | 12,583 |
2018 | 9,427 |
2017 | 5,641 |
Prior | 16,013 |
Revolving Loans Amortized Cost Basis | 29,371 |
Total Loans | 95,962 |
Real Estate [Member] | Residential Real Estate All Other [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 605 |
2020 | 3,502 |
2019 | 1,833 |
2018 | 1,333 |
2017 | 1,623 |
Prior | 2,393 |
Revolving Loans Amortized Cost Basis | 53,936 |
Total Loans | 65,225 |
Real Estate [Member] | Residential Real Estate All Other [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 105 |
2020 | 146 |
2019 | 466 |
2018 | 288 |
2017 | 87 |
Prior | 351 |
Revolving Loans Amortized Cost Basis | 1,296 |
Total Loans | 2,739 |
Real Estate [Member] | Residential Real Estate All Other [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2020 | 217 |
2018 | 558 |
2017 | 95 |
Prior | 695 |
Revolving Loans Amortized Cost Basis | 22 |
Total Loans | 1,587 |
Commercial and Agricultural Non-Real Estate [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 136,699 |
2020 | 214,205 |
2019 | 162,344 |
2018 | 118,843 |
2017 | 70,288 |
Prior | 84,064 |
Revolving Loans Amortized Cost Basis | 315,075 |
Total Loans | 1,101,518 | 1,159,810
Commercial and Agricultural Non-Real Estate [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 117,733 |
2020 | 144,961 |
2019 | 128,177 |
2018 | 92,010 |
2017 | 63,617 |
Prior | 60,998 |
Revolving Loans Amortized Cost Basis | 230,768 |
Total Loans | 838,264 |
Commercial and Agricultural Non-Real Estate [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 17,356 |
2020 | 61,227 |
2019 | 31,397 |
2018 | 15,072 |
2017 | 4,523 |
Prior | 21,254 |
Revolving Loans Amortized Cost Basis | 56,833 |
Total Loans | 207,662 |
Commercial and Agricultural Non-Real Estate [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 1,610 |
2020 | 7,452 |
2019 | 1,269 |
2018 | 11,220 |
2017 | 1,915 |
Prior | 572 |
Revolving Loans Amortized Cost Basis | 20,044 |
Total Loans | 44,082 |
Commercial and Agricultural Non-Real Estate [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2020 | 565 |
2019 | 1,501 |
2018 | 541 |
2017 | 233 |
Prior | 1,240 |
Revolving Loans Amortized Cost Basis | 7,430 |
Total Loans | 11,510 |
Consumer Non-real Estate [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 52,006 |
2020 | 151,050 |
2019 | 83,816 |
2018 | 37,270 |
2017 | 12,297 |
Prior | 5,556 |
Revolving Loans Amortized Cost Basis | 6,993 |
Total Loans | 348,988 | 355,405
Consumer Non-real Estate [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 47,697 |
2020 | 139,148 |
2019 | 78,071 |
2018 | 33,990 |
2017 | 11,288 |
Prior | 4,788 |
Revolving Loans Amortized Cost Basis | 6,700 |
Total Loans | 321,682 |
Consumer Non-real Estate [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 4,182 |
2020 | 11,293 |
2019 | 4,782 |
2018 | 2,869 |
2017 | 775 |
Prior | 608 |
Revolving Loans Amortized Cost Basis | 288 |
Total Loans | 24,797 |
Consumer Non-real Estate [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 125 |
2020 | 476 |
2019 | 781 |
2018 | 335 |
2017 | 193 |
Prior | 64 |
Revolving Loans Amortized Cost Basis | 4 |
Total Loans | 1,978 |
Consumer Non-real Estate [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 2 |
2020 | 133 |
2019 | 182 |
2018 | 76 |
2017 | 41 |
Prior | 96 |
Revolving Loans Amortized Cost Basis | 1 |
Total Loans | 531 |
Oil and Gas [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 97,591 |
2020 | 45,670 |
2019 | 713 |
2018 | 74 |
Prior | 4,071 |
Revolving Loans Amortized Cost Basis | 24,181 |
Total Loans | 172,300 | 179,355
Oil and Gas [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 71,423 |
2020 | 36,838 |
2019 | 62 |
2018 | 74 |
Prior | 4,071 |
Revolving Loans Amortized Cost Basis | 14,562 |
Total Loans | 127,030 |
Oil and Gas [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 8,431 |
2020 | 8,706 |
2019 | 651 |
Revolving Loans Amortized Cost Basis | 9,619 |
Total Loans | 27,407 |
Oil and Gas [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 17,737 |
2020 | 126 |
Total Loans | 17,863 |
Other Loans [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 715,454 |
2020 | 34,287 |
2019 | 30,552 |
2018 | 25,304 |
2017 | 21,624 |
Prior | 27,660 |
Revolving Loans Amortized Cost Basis | 23,352 |
Total Loans | 878,233 | $ 822,078
Other Loans [Member] | Grade 1 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2021 | 715,454 |
2020 | 34,146 |
2019 | 30,287 |
2018 | 25,272 |
2017 | 18,653 |
Prior | 24,729 |
Revolving Loans Amortized Cost Basis | 21,773 |
Total Loans | 870,314 |
Other Loans [Member] | Grade 2 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2019 | 265 |
2018 | 17 |
2017 | 2,676 |
Prior | 2,589 |
Revolving Loans Amortized Cost Basis | 933 |
Total Loans | 6,480 |
Other Loans [Member] | Grade 3 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2018 | 15 |
2017 | 1 |
Prior | 194 |
Revolving Loans Amortized Cost Basis | 71 |
Total Loans | 281 |
Other Loans [Member] | Grade 4 [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
2020 | 141 |
2017 | 294 |
Prior | 148 |
Revolving Loans Amortized Cost Basis | 575 |
Total Loans | $ 1,158 |

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- Definition Amount of financing receivable originated three years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
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- Definition Amount of financing receivable originated two years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 + Details
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