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Business Combination (Tables) | 12 Months Ended
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Dec. 31, 2020
Business Acquisition [Line Items] |
Schedule of Goodwill | The following table illustrates the change in the Company’s goodwill for the year ended December 31, 2019. No measurement period adjustments were recorded during the year ended December 31, 2020.
(in thousands) |  |  |  |
Goodwill balance at December 31, 2018 |  | $ | 790,972 |
Final settlement of cash consideration - acquisition of trust and asset management business |  |  | 1,112 |
Initial goodwill recorded in acquisition of MidSouth Bancorp, Inc. |  |  | 69,207 |
Measurement period adjustments - acquisition of MidSouth Bancorp, Inc. |  |  | (5,838 | )
Goodwill balance at December 31, 2019 |  | $ | 855,453 |
Goodwill balance at December 31, 2020 |  | $ | 855,453 |
MidSouth [Member] |
Business Acquisition [Line Items] |
Schedule of Fair Value of Net Assets Acquired and Liabilities Assumed | The following table sets forth the acquisition date fair value of the assets acquired and liabilities assumed, and the resulting goodwill.
(in thousands) |  |  |  |
ASSETS |  |  |  |
Cash and due from banks |  | $ | 28,059 |
Interest bearing bank deposits |  |  | 276,911 |
Federal funds sold |  |  | 3,475 |
Securities available for sale |  |  | 272,240 |
Loans |  |  | 787,628 |
Property and equipment |  |  | 34,288 |
Other real estate |  |  | 343 |
Identifiable intangible assets |  |  | 31,500 |
Other assets |  |  | 79,888 |
Total identifiable assets |  |  | 1,514,332 |
LIABILITIES |  |  |  |
Deposit liabilities |  |  | 1,280,947 |
Short term borrowings |  |  | 66,996 |
Long term debt |  |  | 13,919 |
Other liabilities |  |  | 21,990 |
Total liabilities |  |  | 1,383,852 |
Net assets acquired |  |  | 130,480 |
Value of stock-based consideration |  |  | 193,849 |
Goodwill |  | $ | 63,369 |
Schedule of Acquisitions Related Costs by Component | The following table presents the acquisition related costs by component:
(in thousands) |  |  |
Personnel expense |  | $ | 7,506 |
Net occupancy and equipment expense |  |  | 1,464 |
Professional services expense |  |  | 7,075 |
Data processing expense |  |  | 1,092 |
Other real estate |  |  | 130 |
Advertising expense |  |  | 2,581 |
Other expense |  |  | 12,818 |
Total merger-related expenses |  | $ | 32,666 |

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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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