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v3.19.3.a.u2

Acquisitions and Divestiture (Narrative) (Details) shares in Millions |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 21, 2019 USD ($) shares | Mar. 09, 2018 USD ($) | Dec. 31, 2019 USD ($) loan shares | Dec. 31, 2018 USD ($) | Jul. 13, 2018 USD ($) | Dec. 31, 2017 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  | $ 855,453,000 | $ 790,972,000 |  | $ 745,523,000
Purchased credit impaired loans book balance |  |  | 287,767,000 | 308,401,000 |  |
Recorded investment without an allowance |  |  | $ 104,560,000 | 107,528,000 |  |
Estimated useful life |  |  | 17 years |  |  |
Harrison Finance Company [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds from sale of finance subsidiary |  | $ 78,900,000 |  |  |  |
Loss from sale of consumer finance subsidiary |  | $ 1,100,000 |  |  |  |
MidSouth [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Net assets acquired |  |  | $ 130,480,000 |  |  |
Goodwill |  |  | $ 63,369,000 |  |  |
Common stock issued | shares | 5,044,332.0 |  | 5.0 |  |  |
Business combination transaction value on an average of share price | $ 193,800,000 |  | $ 193,800,000 |  |  |
Maximum period for adjustments to provisional fair value measurements |  |  | 1 year |  |  |
Book balance of the loans acquired |  |  | $ 686,000,000.0 |  |  |
Estimated uncollectible amount |  |  | 18,800,000 |  |  |
Estimated fair value of uncollectible amount |  |  | 667,100,000 |  |  |
Purchased credit impaired loans book balance |  |  | 143,900,000 |  |  |
Recorded investment without an allowance |  |  | 120,500,000 |  |  |
Identifiable intangible assets |  |  | $ 31,500,000 |  |  |
Estimated useful life |  |  | 15 years |  |  |
Customer repurchase agreements |  |  | $ 39,500,000 |  |  |
Number of preferred debentures |  |  | 3 |  |  |
Debt instrument maturity year |  |  | 2037 |  |  |
Acquisition related costs |  |  | $ 32,666,000 |  |  |
Assets under management |  |  | $ 787,628,000 |  |  |
MidSouth [Member] | FHLB |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of FHLB advances | loan |  |  | 2 |  |  |
FHLB advances amount |  |  | $ 27,500 |  |  |
FHLB advances maturity period |  |  | 30 days |  |  |
FHLB advances fixed interest rate |  |  | 2.16% |  |  |
Capital One [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Net assets acquired |  |  | $ (187,218,000) |  |  |
Goodwill |  |  | 46,561,000 |  |  |
Identifiable intangible assets |  |  | $ 27,562,000 |  |  |
Assets under management |  |  |  |  | $ 4,000,000,000 |
Assets under management and administration |  |  |  |  | 10,400,000,000 |
Cash for customer deposit liabilities assumed |  |  |  |  | $ 217,000,000 |
Trust And Asset Management Acquisition [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  |  | 46,600,000 |  |
Estimated useful life |  |  | 17 years |  |  |
Acquisition related costs |  |  |  | $ 6,200,000 |  |

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