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Loans and Allowance - Changes in Allowance for Loan Losses by Loan Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Allowance for loan losses: |  |  |  |
Beginning balance | $ 80,902 | $ 76,420 | $ 80,552 | $ 75,032
Provision for losses | 500 | 1,663 | 1,700 | 4,163
Recoveries on loans | 1,434 | 3,190 | 2,439 | 3,891
Loans charged off | (1,562) | (3,730) | (3,417) | (5,543)
Ending balance | 81,274 | 77,543 | 81,274 | 77,543
Commercial |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance | 33,069 | 30,770 | 32,657 | 30,420
Provision for losses | 100 | 471 | 336 | 1,311
Recoveries on loans | 344 | 1,283 | 886 | 1,402
Loans charged off | (311) | (1,057) | (677) | (1,666)
Ending balance | 33,202 | 31,467 | 33,202 | 31,467
Commercial Real Estate |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance | 29,434 | 27,705 | 29,609 | 27,343
Provision for losses | 320 | 954 | 1,089 | 1,038
Recoveries on loans | 778 | 1,213 | 1,023 | 1,552
Loans charged off | (1,001) | (2,141) | (2,190) | (2,202)
Ending balance | 29,531 | 27,731 | 29,531 | 27,731
Consumer |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance | 4,026 | 3,896 | 3,964 | 3,732
Provision for losses | 36 | 60 | 141 | 334
Recoveries on loans | 100 | 98 | 218 | 187
Loans charged off | (92) | (133) | (253) | (332)
Ending balance | 4,070 | 3,921 | 4,070 | 3,921
Residential |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance | 14,373 | 14,049 | 14,322 | 13,537
Provision for losses | 44 | 178 | 134 | 1,480
Recoveries on loans | 212 | 596 | 312 | 750
Loans charged off | (158) | (399) | (297) | (1,343)
Ending balance | $ 14,471 | $ 14,424 | $ 14,471 | $ 14,424

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
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