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Allowance for Loan Losses - Investment in Loans, Net of Unearned Income on Impairment Methodology (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Investment in loans, net of unearned income on impairment methodology |  |
Individually evaluated for impairment | $ 27,186 | $ 51,179
Collectively evaluated for impairment | 9,742,191 | 9,466,195
Loans, net of unearned income | 9,769,377 | 9,689,638
Purchased with deteriorated credit quality |  |
Investment in loans, net of unearned income on impairment methodology |  |
Loans, net of unearned income |  | 172,264
Commercial |  |
Investment in loans, net of unearned income on impairment methodology |  |
Individually evaluated for impairment | 10,460 | 8,460
Collectively evaluated for impairment | 1,414,116 | 1,329,974
Loans, net of unearned income |  | 1,367,972
Commercial | Purchased with deteriorated credit quality |  |
Investment in loans, net of unearned income on impairment methodology |  |
Loans, net of unearned income |  | 29,538
Real estate – construction: |  |
Investment in loans, net of unearned income on impairment methodology |  |
Individually evaluated for impairment | 2,728 | 12,416
Collectively evaluated for impairment | 785,167 | 813,204
Loans, net of unearned income |  | 826,483
Real estate – construction: | Purchased with deteriorated credit quality |  |
Investment in loans, net of unearned income on impairment methodology |  |
Loans, net of unearned income |  | 863
Real estate – 1-4 family mortgage |  |
Investment in loans, net of unearned income on impairment methodology |  |
Individually evaluated for impairment | 5,865 | 20,262
Collectively evaluated for impairment | 2,840,436 | 2,810,808
Loans, net of unearned income |  | 2,866,613
Real estate – 1-4 family mortgage | Purchased with deteriorated credit quality |  |
Investment in loans, net of unearned income on impairment methodology |  |
Loans, net of unearned income |  | 35,543
Real estate – commercial mortgage: |  |
Investment in loans, net of unearned income on impairment methodology |  |
Individually evaluated for impairment | 7,508 | 9,550
Collectively evaluated for impairment | 4,301,200 | 4,131,582
Loans, net of unearned income |  | 4,244,265
Real estate – commercial mortgage: | Purchased with deteriorated credit quality |  |
Investment in loans, net of unearned income on impairment methodology |  |
Loans, net of unearned income |  | 103,133
Installment and Other |  |
Investment in loans, net of unearned income on impairment methodology |  |
Individually evaluated for impairment | 625 | 491
Collectively evaluated for impairment | $ 316,593 | 380,627
Loans, net of unearned income |  | 384,305
Installment and Other | Purchased with deteriorated credit quality |  |
Investment in loans, net of unearned income on impairment methodology |  |
Loans, net of unearned income |  | $ 3,187

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- Definition Investment in loans, net of unearned income on impairment methodology. + References No definition available. + Details
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- Definition Amount, after fee received for commitment to originate or purchase, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524 Reference 3: 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=118955255&loc=SL82922352-210448 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448 + Details
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