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Allowance for Credit Losses - Investment in Loans, Net of Unearned Income on Impairment Methodology (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Investment in loans, net of unearned income on impairment methodology |  |
Individually evaluated for impairment | $ 29,602 | $ 51,179
Collectively evaluated for impairment | 11,055,136 | 9,466,195
Loans, net of unearned income | 11,084,738 | 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 | 17,670 | 8,460
Collectively evaluated for impairment | 2,630,392 | 1,329,974
Loans, net of unearned income | 2,648,062 | 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 | 0 | 12,416
Collectively evaluated for impairment | 773,119 | 813,204
Loans, net of unearned income | 773,119 | 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 | 4,718 | 20,262
Collectively evaluated for impairment | 2,755,676 | 2,810,808
Loans, net of unearned income | 2,760,394 | 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 | 6,596 | 9,550
Collectively evaluated for impairment | 4,570,413 | 4,131,582
Loans, net of unearned income | 4,577,009 | 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 | 618 | 491
Collectively evaluated for impairment | 242,608 | 380,627
Loans, net of unearned income | $ 243,226 | 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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