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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Accounting Standards Update and Change in Accounting Principle | The table below illustrates the adoption impact of ASU 2016-13 on the Company's allowance for credit losses.
| December 31, 2019 |  | January 1, 2020
(In thousands) | Allowance for loan losses ending balance |  | CECL Adjustment |  | Allowance for credit losses beginning balance
Commercial: |  |  |  |  |
Business | $ | 44,268 |  |  | $ | (6,328) |  |  | $ | 37,940 |
Real estate - construction and land | 21,589 |  |  | (12,385) |  |  | 9,204 |
Real estate - business | 25,903 |  |  | (10,998) |  |  | 14,905 |
Total Commercial: | 91,760 |  |  | (29,711) |  |  | 62,049 |
Personal Banking: |  |  |  |  |
Real estate - personal | 3,125 |  |  | 1,730 |  |  | 4,855 |
Consumer | 15,932 |  |  | (1,414) |  |  | 14,518 |
Revolving home equity | 638 |  |  | 986 |  |  | 1,624 |
Consumer credit card | 47,997 |  |  | 8,498 |  |  | 56,495 |
Overdrafts | 1,230 |  |  | (1,128) |  |  | 102 |
Total Personal Banking: | 68,922 |  |  | 8,672 |  |  | 77,594 |
Allowance for credit losses on loans | 160,682 |  |  | (21,039) |  |  | 139,643 |
Liability for unfunded lending commitments | 1,075 |  |  | 16,090 |  |  | 17,165 |
Total allowance for credit losses | $ | 161,757 |  |  | $ | (4,949) |  |  | $ | 156,808 |

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
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