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Bank segment - Credit risk profile - nonaccrual loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | $ 42,716 | $ 36,491
Without a Related ACL | 10,620 | 10,905
Total | 53,336 | 47,396
Total troubled debt restructuring loans not included above | 25,963 | 27,078
Real estate | Residential 1-4 family |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 16,945 | 8,991
Without a Related ACL | 2,987 | 2,835
Total | 19,932 | 11,826
Total troubled debt restructuring loans not included above | 7,453 | 7,932
Real estate | Commercial real estate |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 15,634 | 15,847
Without a Related ACL | 2,828 | 2,875
Total | 18,462 | 18,722
Total troubled debt restructuring loans not included above | 3,254 | 3,281
Real estate | Home equity line of credit |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 5,075 | 5,791
Without a Related ACL | 1,587 | 1,567
Total | 6,662 | 7,358
Total troubled debt restructuring loans not included above | 7,727 | 8,148
Real estate | Residential land |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 107 | 108
Without a Related ACL | 300 | 300
Total | 407 | 408
Total troubled debt restructuring loans not included above | 1,738 | 1,555
Real estate | Commercial construction |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 0 | 0
Without a Related ACL | 0 | 0
Total | 0 | 0
Total troubled debt restructuring loans not included above | 0 | 0
Real estate | Residential construction |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 0 | 0
Without a Related ACL | 0 | 0
Total | 0 | 0
Total troubled debt restructuring loans not included above | 0 | 0
Commercial |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 1,763 | 1,819
Without a Related ACL | 2,918 | 3,328
Total | 4,681 | 5,147
Total troubled debt restructuring loans not included above | 5,737 | 6,108
Consumer |  |
Credit risk profile based on nonaccrual loans |  |
With a Related ACL | 3,192 | 3,935
Without a Related ACL | 0 | 0
Total | 3,192 | 3,935
Total troubled debt restructuring loans not included above | $ 54 | $ 54

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- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details
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