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Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract] |
Loan Commitments and Letters of Credit |
(in thousands) | September 30, 2020 |  | December 31, 2019
Letters of credit* | $ | 177,000 |  |  | $ | 202,614 |
Commitments to fund commercial and industrial loans | 7,990,189 |  |  | 7,018,152 |
Commitments to fund commercial real estate, construction, and land development loans | 2,891,857 |  |  | 3,032,252 |
Commitments under home equity lines of credit | 1,588,844 |  |  | 1,501,452 |
Unused credit card lines | 984,636 |  |  | 877,929 |
Other loan commitments | 458,509 |  |  | 485,371 |
Total letters of credit and unfunded lending commitments | $ | 14,091,035 |  |  | $ | 13,117,770 |
Investments in low income housing, solar energy tax credit and other CRA partnerships: |  |  |
Carrying amount included in other assets | $ | 214,615 |  |  | $ | 146,612 |
Amount of future funding commitments included in carrying amount | 124,866 |  |  | 78,266 |
Permanent and short-term construction loans and letter of credit commitments | 52,686 |  |  | 2,124 |
Funded portion of permanent and short-term loans and letters of credit | 5,194 |  |  | 3,196 |
* Represent the contractual amount net of risk participations purchased of approximately $31 million and $33 million at September 30, 2020 and December 31, 2019, respectively.

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