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Loans and Allowance for Loan Losses (Tables) | 9 Months Ended
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Sep. 30, 2019
Accounts Notes And Loans Receivable [Line Items] |
Loans, Net of Unearned Income | Loans, net of unearned income, by portfolio are presented in the table below.
|  | September 30, |  |  | December 31, |
(in thousands) |  | 2019 |  |  | 2018 |
Commercial non-real estate |  | $ | 8,893,004 |  |  | $ | 8,620,601 |
Commercial real estate - owner occupied |  |  | 2,734,379 |  |  |  | 2,457,748 |
Total commercial and industrial |  |  | 11,627,383 |  |  |  | 11,078,349 |
Commercial real estate - income producing |  |  | 3,060,568 |  |  |  | 2,341,779 |
Construction and land development |  |  | 1,190,718 |  |  |  | 1,548,335 |
Residential mortgages |  |  | 3,004,958 |  |  |  | 2,910,081 |
Consumer |  |  | 2,152,325 |  |  |  | 2,147,867 |
Total loans |  | $ | 21,035,952 |  |  | $ | 20,026,411 |
Allowance for Loan Losses by Portfolio Class | The following tables show activity in the allowance for loan losses by portfolio class for the nine months ended September 30, 2019 and 2018, as well as the corresponding recorded investment in loans at the end of each period
|  |  |  |  |  | Commercial |  |  | Total |  |  | Commercial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Commercial |  |  | real estate- |  |  | commercial |  |  | real estate- |  |  | Construction |  |  |  |  |  |  |  |  |  |  |  |  |
|  | non-real |  |  | owner |  |  | and |  |  | income |  |  | and land |  |  | Residential |  |  |  |  |  |  |  |  |
(in thousands) |  | estate |  |  | occupied |  |  | industrial |  |  | producing |  |  | development |  |  | mortgages |  |  | Consumer |  |  | Total |
|  | Nine Months Ended September 30, 2019 |
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 97,752 |  |  | $ | 13,757 |  |  | $ | 111,509 |  |  | $ | 17,638 |  |  | $ | 15,647 |  |  | $ | 23,782 |  |  | $ | 25,938 |  |  | $ | 194,514 |
Charge-offs |  |  | (33,382 | ) |  |  | (137 | ) |  |  | (33,519 | ) |  |  | (10 | ) |  |  | (7 | ) |  |  | (660 | ) |  |  | (13,169 | ) |  |  | (47,365 | )
Recoveries |  |  | 5,662 |  |  |  | 284 |  |  |  | 5,946 |  |  |  | 518 |  |  |  | 108 |  |  |  | 433 |  |  |  | 2,866 |  |  |  | 9,871 |
Net provision for loan losses |  |  | 29,267 |  |  |  | 545 |  |  |  | 29,812 |  |  |  | 7,604 |  |  |  | (5,982 | ) |  |  | (2,076 | ) |  |  | 9,194 |  |  |  | 38,552 |
Ending balance |  | $ | 99,299 |  |  | $ | 14,449 |  |  | $ | 113,748 |  |  | $ | 25,750 |  |  | $ | 9,766 |  |  | $ | 21,479 |  |  | $ | 24,829 |  |  | $ | 195,572 |
Ending balance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance: |  |  |
Individually evaluated for impairment |  | $ | 11,535 |  |  | $ | 57 |  |  | $ | 11,592 |  |  | $ | 49 |  |  | $ | 29 |  |  | $ | 183 |  |  | $ | 365 |  |  | $ | 12,218 |
Amounts related to purchased credit impaired loans |  |  | 135 |  |  |  | 172 |  |  |  | 307 |  |  |  | 40 |  |  |  | 144 |  |  |  | 8,032 |  |  |  | 300 |  |  |  | 8,823 |
Collectively evaluated for impairment |  |  | 87,629 |  |  |  | 14,220 |  |  |  | 101,849 |  |  |  | 25,661 |  |  |  | 9,593 |  |  |  | 13,264 |  |  |  | 24,164 |  |  |  | 174,531 |
Total allowance |  | $ | 99,299 |  |  | $ | 14,449 |  |  | $ | 113,748 |  |  | $ | 25,750 |  |  | $ | 9,766 |  |  | $ | 21,479 |  |  | $ | 24,829 |  |  | $ | 195,572 |
Loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | 201,979 |  |  | $ | 11,109 |  |  | $ | 213,088 |  |  | $ | 2,781 |  |  | $ | 3,385 |  |  | $ | 4,301 |  |  | $ | 1,583 |  |  | $ | 225,138 |
Purchased credit impaired loans |  |  | 33,040 |  |  |  | 45,124 |  |  |  | 78,164 |  |  |  | 27,281 |  |  |  | 23,431 |  |  |  | 93,450 |  |  |  | 6,294 |  |  |  | 228,620 |
Collectively evaluated for impairment |  |  | 8,657,985 |  |  |  | 2,678,146 |  |  |  | 11,336,131 |  |  |  | 3,030,506 |  |  |  | 1,163,902 |  |  |  | 2,907,207 |  |  |  | 2,144,448 |  |  |  | 20,582,194 |
Total loans |  | $ | 8,893,004 |  |  | $ | 2,734,379 |  |  | $ | 11,627,383 |  |  | $ | 3,060,568 |  |  | $ | 1,190,718 |  |  | $ | 3,004,958 |  |  | $ | 2,152,325 |  |  | $ | 21,035,952 |
|  |  |  |  |  | Commercial |  |  | Total |  |  | Commercial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Commercial |  |  | real estate- |  |  | commercial |  |  | real estate- |  |  | Construction |  |  |  |  |  |  |  |  |  |  |  |  |
|  | non-real |  |  | owner |  |  | and |  |  | income |  |  | and land |  |  | Residential |  |  |  |  |  |  |  |  |
(in thousands) |  | estate |  |  | occupied |  |  | industrial |  |  | producing |  |  | development |  |  | mortgages |  |  | Consumer |  |  | Total |
|  | Nine Months Ended September 30, 2018 |
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 127,918 |  |  | $ | 12,962 |  |  | $ | 140,880 |  |  | $ | 13,709 |  |  | $ | 7,372 |  |  | $ | 24,844 |  |  | $ | 30,503 |  |  | $ | 217,308 |
Charge-offs |  |  | (15,401 | ) |  |  | (7,330 | ) |  |  | (22,731 | ) |  |  | (1,633 | ) |  |  | (265 | ) |  |  | (585 | ) |  |  | (18,599 | ) |  |  | (43,813 | )
Recoveries |  |  | 13,234 |  |  |  | 282 |  |  |  | 13,516 |  |  |  | 221 |  |  |  | 68 |  |  |  | 1,854 |  |  |  | 4,028 |  |  |  | 19,687 |
Net provision for loan losses |  |  | (5,073 | ) |  |  | 7,203 |  |  |  | 2,130 |  |  |  | 6,288 |  |  |  | 6,248 |  |  |  | (1,803 | ) |  |  | 15,153 |  |  |  | 28,016 |
Reduction as a result of sale of subsidiary |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (6,648 | ) |  |  | (6,648 | )
Ending balance |  | $ | 120,678 |  |  | $ | 13,117 |  |  | $ | 133,795 |  |  | $ | 18,585 |  |  | $ | 13,423 |  |  | $ | 24,310 |  |  | $ | 24,437 |  |  | $ | 214,550 |
Ending balance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | 23,101 |  |  | $ | 225 |  |  | $ | 23,326 |  |  | $ | 285 |  |  | $ | 1 |  |  | $ | 163 |  |  | $ | 131 |  |  | $ | 23,906 |
Amounts related to purchased credit impaired loans |  |  | 327 |  |  |  | 403 |  |  | $ | 730 |  |  |  | 45 |  |  |  | 91 |  |  |  | 10,109 |  |  |  | 433 |  |  |  | 11,408 |
Collectively evaluated for impairment |  |  | 97,250 |  |  |  | 12,489 |  |  | $ | 109,739 |  |  |  | 18,255 |  |  |  | 13,331 |  |  |  | 14,038 |  |  |  | 23,873 |  |  |  | 179,236 |
Total allowance |  | $ | 120,678 |  |  | $ | 13,117 |  |  | $ | 133,795 |  |  | $ | 18,585 |  |  | $ | 13,423 |  |  | $ | 24,310 |  |  | $ | 24,437 |  |  | $ | 214,550 |
Loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | 275,966 |  |  | $ | 22,437 |  |  | $ | 298,403 |  |  | $ | 4,615 |  |  | $ | 112 |  |  | $ | 3,061 |  |  | $ | 890 |  |  | $ | 307,081 |
Purchased credit impaired loans |  |  | 7,907 |  |  |  | 7,113 |  |  | $ | 15,020 |  |  |  | 3,790 |  |  |  | 4,232 |  |  |  | 107,535 |  |  |  | 4,458 |  |  |  | 135,035 |
Collectively evaluated for impairment |  |  | 8,155,011 |  |  |  | 2,270,721 |  |  | $ | 10,425,732 |  |  |  | 2,303,294 |  |  |  | 1,519,075 |  |  |  | 2,736,320 |  |  |  | 2,117,180 |  |  |  | 19,101,601 |
Total loans |  | $ | 8,438,884 |  |  | $ | 2,300,271 |  |  | $ | 10,739,155 |  |  | $ | 2,311,699 |  |  | $ | 1,523,419 |  |  | $ | 2,846,916 |  |  | $ | 2,122,528 |  |  | $ | 19,543,717 |
Composition of Nonaccrual Loans by Portfolio Class | The following table shows the composition of nonaccrual loans by portfolio class. Purchased credit impaired loans accounted for in pools with an accretable yield are considered to be performing and are excluded from the table.
|  | September 30, |  |  | December 31, |
(in thousands) |  | 2019 |  |  | 2018 |
Commercial non-real estate |  | $ | 150,705 |  |  | $ | 110,653 |
Commercial real estate - owner occupied |  |  | 13,087 |  |  |  | 16,895 |
Total commercial and industrial |  |  | 163,792 |  |  |  | 127,548 |
Commercial real estate - income producing |  |  | 2,957 |  |  |  | 4,991 |
Construction and land development |  |  | 1,336 |  |  |  | 2,146 |
Residential mortgages |  |  | 37,901 |  |  |  | 35,866 |
Consumer |  |  | 16,874 |  |  |  | 16,744 |
Total loans |  | $ | 222,860 |  |  | $ | 187,295 |
Troubled Debt Restructurings Modified by Portfolio Class | The tables below detail by portfolio class TDRs that were modified during the three and nine months ended September 30, 2019 and 2018:
|  | Three Months Ended |
($ in thousands) |  | September 30, 2019 |  |  | September 30, 2018 |
|  |  |  |  |  | Pre- Modification |  |  | Post- Modification |  |  |  |  |  |  | Pre- Modification |  |  | Post- Modification |
|  | Number |  |  | Outstanding |  |  | Outstanding |  |  | Number |  |  | Outstanding |  |  | Outstanding |
|  | of |  |  | Recorded |  |  | Recorded |  |  | of |  |  | Recorded |  |  | Recorded |
Troubled Debt Restructurings: |  | Contracts |  |  | Investment |  |  | Investment |  |  | Contracts |  |  | Investment |  |  | Investment |
Commercial non-real estate |  |  | 2 |  |  | $ | 13,083 |  |  | $ | 6,271 |  |  |  | 11 |  |  | $ | 23,347 |  |  | $ | 23,347 |
Commercial real estate - owner occupied |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1 |  |  |  | 229 |  |  |  | 229 |
Total commercial and industrial |  |  | 2 |  |  |  | 13,083 |  |  |  | 6,271 |  |  |  | 12 |  |  |  | 23,576 |  |  |  | 23,576 |
Commercial real estate - income producing |  |  | 1 |  |  |  | 123 |  |  |  | 123 |  |  |  | — |  |  |  | — |  |  |  | — |
Construction and land development |  |  | 3 |  |  |  | 323 |  |  |  | 323 |  |  |  | — |  |  |  | — |  |  |  | — |
Residential mortgages |  |  | 3 |  |  |  | 297 |  |  |  | 297 |  |  |  | 8 |  |  |  | 930 |  |  |  | 930 |
Consumer |  |  | 4 |  |  |  | 70 |  |  |  | 70 |  |  |  | 6 |  |  |  | 89 |  |  |  | 89 |
Total loans |  |  | 13 |  |  | $ | 13,896 |  |  | $ | 7,084 |  |  |  | 26 |  |  | $ | 24,595 |  |  | $ | 24,595 |
|  | Nine Months Ended |
($ in thousands) |  | September 30, 2019 |  |  | September 30, 2018 |
Troubled Debt Restructurings: |  | Number of Contracts |  |  | Pre- Modification Outstanding Recorded Investment |  |  | Post- Modification Outstanding Recorded Investment |  |  | Number of Contracts |  |  | Pre- Modification Outstanding Recorded Investment |  |  | Post- Modification Outstanding Recorded Investment |
Commercial non-real estate |  |  | 10 |  |  | $ | 27,220 |  |  | $ | 20,408 |  |  |  | 29 |  |  | $ | 85,306 |  |  | $ | 85,306 |
Commercial real estate - owner occupied |  |  | 1 |  |  |  | 167 |  |  |  | 167 |  |  |  | 2 |  |  |  | 6,138 |  |  |  | 6,138 |
Total commercial and industrial |  |  | 11 |  |  |  | 27,387 |  |  |  | 20,575 |  |  |  | 31 |  |  |  | 91,444 |  |  |  | 91,444 |
Commercial real estate - income producing |  |  | 1 |  |  |  | 123 |  |  |  | 123 |  |  |  | 1 |  |  |  | 1,564 |  |  |  | 1,564 |
Construction and land development |  |  | 3 |  |  |  | 323 |  |  |  | 323 |  |  |  | — |  |  |  | — |  |  |  | — |
Residential mortgages |  |  | 10 |  |  |  | 2,199 |  |  |  | 2,199 |  |  |  | 11 |  |  |  | 1,048 |  |  |  | 1,048 |
Consumer |  |  | 6 |  |  |  | 116 |  |  |  | 116 |  |  |  | 7 |  |  |  | 311 |  |  |  | 311 |
Total loans |  |  | 31 |  |  | $ | 30,148 |  |  | $ | 23,336 |  |  |  | 50 |  |  | $ | 94,367 |  |  | $ | 94,367 |
Loans Individually Evaluated for Impairment Disaggregated by Portfolio Class | The tables below present loans that are individually evaluated for impairment disaggregated by portfolio class at September 30, 2019 and December 31, 2018
|  | September 30, 2019 |
(in thousands) |  | Recorded investment without an allowance |  |  | Recorded investment with an allowance |  |  | Unpaid principal balance |  |  | Related allowance |
Commercial non-real estate |  | $ | 161,275 |  |  | $ | 40,704 |  |  | $ | 239,506 |  |  | $ | 11,535 |
Commercial real estate - owner occupied |  |  | 9,183 |  |  |  | 1,926 |  |  |  | 15,087 |  |  |  | 57 |
Total commercial and industrial |  |  | 170,458 |  |  |  | 42,630 |  |  |  | 254,593 |  |  |  | 11,592 |
Commercial real estate - income producing |  |  | 1,222 |  |  |  | 1,559 |  |  |  | 3,793 |  |  |  | 49 |
Construction and land development |  |  | 3,121 |  |  |  | 264 |  |  |  | 4,123 |  |  |  | 29 |
Residential mortgages |  |  | 2,665 |  |  |  | 1,636 |  |  |  | 4,831 |  |  |  | 183 |
Consumer |  |  | 494 |  |  |  | 1,089 |  |  |  | 1,864 |  |  |  | 365 |
Total loans |  | $ | 177,960 |  |  | $ | 47,178 |  |  | $ | 269,204 |  |  | $ | 12,218 |
|  | December 31, 2018 |
(in thousands) |  | Recorded investment without an allowance |  |  | Recorded investment with an allowance |  |  | Unpaid principal balance |  |  | Related allowance |
Commercial non-real estate |  | $ | 144,625 |  |  | $ | 94,759 |  |  | $ | 273,290 |  |  | $ | 3,636 |
Commercial real estate - owner occupied |  |  | 13,027 |  |  |  | 8,639 |  |  |  | 25,888 |  |  |  | 607 |
Total commercial and industrial |  |  | 157,652 |  |  |  | 103,398 |  |  |  | 299,178 |  |  |  | 4,243 |
Commercial real estate - income producing |  |  | 1,138 |  |  |  | 1,563 |  |  |  | 3,428 |  |  |  | 210 |
Construction and land development |  |  | 100 |  |  |  | 21 |  |  |  | 121 |  |  |  | 1 |
Residential mortgages |  |  | 2,058 |  |  |  | 1,818 |  |  |  | 4,421 |  |  |  | 444 |
Consumer |  |  | 279 |  |  |  | 728 |  |  |  | 1,253 |  |  |  | 216 |
Total loans |  | $ | 161,227 |  |  | $ | 107,528 |  |  | $ | 308,401 |  |  | $ | 5,114 |
The tables below present the average balances and interest income for total impaired loans for the three and nine months ended September 30, 2019 and 2018. Interest income recognized represents interest on accruing loans modified in a TDR.
|  | Three Months Ended |
|  | September 30, 2019 |  |  | September 30, 2018 |
(in thousands) |  | Average Recorded Investment |  |  | Interest Income Recognized |  |  | Average Recorded Investment |  |  | Interest Income Recognized |
Commercial non-real estate |  | $ | 213,291 |  |  | $ | 1,062 |  |  | $ | 283,519 |  |  | $ | 2,275 |
Commercial real estate - owner occupied |  |  | 14,439 |  |  |  | 45 |  |  |  | 24,702 |  |  |  | 90 |
Total commercial and industrial |  |  | 227,730 |  |  |  | 1,107 |  |  |  | 308,221 |  |  |  | 2,365 |
Commercial real estate - income producing |  |  | 2,331 |  |  |  | 7 |  |  |  | 6,718 |  |  |  | 15 |
Construction and land development |  |  | 1,702 |  |  |  | 2 |  |  |  | 113 |  |  |  | — |
Residential mortgages |  |  | 4,195 |  |  |  | 2 |  |  |  | 3,397 |  |  |  | 4 |
Consumer |  |  | 1,552 |  |  |  | 21 |  |  |  | 745 |  |  |  | 10 |
Total loans |  | $ | 237,510 |  |  | $ | 1,139 |  |  | $ | 319,194 |  |  | $ | 2,394 |
|  | Nine Months Ended |
|  | September 30, 2019 |  |  | September 30, 2018 |
(in thousands) |  | Average Recorded Investment |  |  | Interest Income Recognized |  |  | Average Recorded Investment |  |  | Interest Income Recognized |
Commercial non-real estate |  | $ | 225,597 |  |  | $ | 4,202 |  |  | $ | 295,636 |  |  | $ | 5,863 |
Commercial real estate - owner occupied |  |  | 17,044 |  |  |  | 196 |  |  |  | 26,416 |  |  |  | 258 |
Total commercial and industrial |  |  | 242,641 |  |  |  | 4,398 |  |  |  | 322,052 |  |  |  | 6,121 |
Commercial real estate - income producing |  |  | 2,430 |  |  |  | 21 |  |  |  | 10,988 |  |  |  | 64 |
Construction and land development |  |  | 597 |  |  |  | 2 |  |  |  | 155 |  |  |  | — |
Residential mortgages |  |  | 4,525 |  |  |  | 9 |  |  |  | 6,307 |  |  |  | 14 |
Consumer |  |  | 1,442 |  |  |  | 55 |  |  |  | 769 |  |  |  | 28 |
Total loans |  | $ | 251,635 |  |  | $ | 4,485 |  |  | $ | 340,271 |  |  | $ | 6,227 |
Age Analysis of Past Due Loans by Portfolio Class | The tables below present the age analysis of past due loans by portfolio class at September 30, 2019 and December 31, 2018. Purchased credit impaired loans accounted for in pools with an accretable yield are considered to be current.
September 30, 2019 |  | 30-59 days past due |  |  | 60-89 days past due |  |  | Greater than 90 days past due |  |  | Total past due |  |  | Current |  |  | Total Loans |  |  | Recorded investment > 90 days and still accruing |
(in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial non-real estate |  | $ | 29,770 |  |  | $ | 19,786 |  |  | $ | 56,767 |  |  | $ | 106,323 |  |  | $ | 8,786,681 |  |  | $ | 8,893,004 |  |  | $ | 2,928 |
Commercial real estate - owner occupied |  |  | 5,222 |  |  |  | 909 |  |  |  | 14,635 |  |  | $ | 20,766 |  |  |  | 2,713,613 |  |  |  | 2,734,379 |  |  |  | 2,837 |
Total commercial and industrial |  |  | 34,992 |  |  |  | 20,695 |  |  |  | 71,402 |  |  |  | 127,089 |  |  |  | 11,500,294 |  |  |  | 11,627,383 |  |  |  | 5,765 |
Commercial real estate - income producing |  |  | 817 |  |  |  | 473 |  |  |  | 2,751 |  |  |  | 4,041 |  |  |  | 3,056,527 |  |  |  | 3,060,568 |  |  |  | — |
Construction and land development |  |  | 550 |  |  |  | 77 |  |  |  | 1,076 |  |  |  | 1,703 |  |  |  | 1,189,015 |  |  |  | 1,190,718 |  |  |  | 644 |
Residential mortgages |  |  | 5,650 |  |  |  | 11,140 |  |  |  | 21,964 |  |  |  | 38,754 |  |  |  | 2,966,204 |  |  |  | 3,004,958 |  |  |  | 576 |
Consumer |  |  | 14,598 |  |  |  | 4,730 |  |  |  | 9,434 |  |  |  | 28,762 |  |  |  | 2,123,563 |  |  |  | 2,152,325 |  |  |  | 887 |
Total |  | $ | 56,607 |  |  | $ | 37,115 |  |  | $ | 106,627 |  |  | $ | 200,349 |  |  | $ | 20,835,603 |  |  | $ | 21,035,952 |  |  | $ | 7,872 |
December 31, 2018 |  | 30-59 days past due |  |  | 60-89 days past due |  |  | Greater than 90 days past due |  |  | Total past due |  |  | Current |  |  | Total Loans |  |  | Recorded investment > 90 days and still accruing |
(in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial non-real estate |  | $ | 12,257 |  |  | $ | 3,895 |  |  | $ | 77,551 |  |  | $ | 93,703 |  |  | $ | 8,526,898 |  |  |  | 8,620,601 |  |  | $ | 10,823 |
Commercial real estate - owner occupied |  |  | 2,394 |  |  |  | 1,570 |  |  |  | 14,542 |  |  |  | 18,506 |  |  |  | 2,439,242 |  |  |  | 2,457,748 |  |  |  | 380 |
Total commercial and industrial |  |  | 14,651 |  |  |  | 5,465 |  |  |  | 92,093 |  |  |  | 112,209 |  |  |  | 10,966,140 |  |  |  | 11,078,349 |  |  |  | 11,203 |
Commercial real estate - income producing |  |  | 2,371 |  |  |  | 772 |  |  |  | 5,495 |  |  |  | 8,638 |  |  |  | 2,333,141 |  |  |  | 2,341,779 |  |  |  | 1,844 |
Construction and land development |  |  | 7,397 |  |  |  | 1,129 |  |  |  | 2,165 |  |  |  | 10,691 |  |  |  | 1,537,644 |  |  |  | 1,548,335 |  |  |  | 644 |
Residential mortgages |  |  | 32,869 |  |  |  | 14,706 |  |  |  | 23,175 |  |  |  | 70,750 |  |  |  | 2,839,331 |  |  |  | 2,910,081 |  |  |  | — |
Consumer |  |  | 20,402 |  |  |  | 4,695 |  |  |  | 9,665 |  |  |  | 34,762 |  |  |  | 2,113,105 |  |  |  | 2,147,867 |  |  |  | 618 |
Total |  | $ | 77,690 |  |  | $ | 26,767 |  |  | $ | 132,593 |  |  | $ | 237,050 |  |  | $ | 19,789,361 |  |  | $ | 20,026,411 |  |  | $ | 14,309 |
Changes in Carrying Amount of Purchased Credit Impaired Loans and Related Accretable Yield | Changes in the carrying amount of purchased credit impaired loans and related accretable yield are presented in the following table for the nine months ended September 30, 2019 and the year ended December 31, 2018.
|  | September 30, 2019 |  |  | December 31, 2018 |
(in thousands) |  | Carrying Amount of Loans |  |  | Accretable Yield |  |  | Carrying Amount of Loans |  |  | Accretable Yield |
Balance at beginning of period |  | $ | 129,596 |  |  | $ | 37,294 |  |  | $ | 153,403 |  |  | $ | 62,517 |
Additions |  |  | 118,047 |  |  |  | 6,238 |  |  |  | — |  |  |  | — |
Payments received, net |  |  | (28,846 | ) |  |  | (3,517 | ) |  |  | (39,556 | ) |  |  | (5,779 | )
Accretion |  |  | 9,823 |  |  |  | (9,823 | ) |  |  | 15,749 |  |  |  | (15,749 | )
Increase in expected cash flows based on actual cash flows and changes in cash flow assumptions |  |  | — |  |  |  | 4,190 |  |  |  | — |  |  |  | (3,695 | )
Balance at end of period |  | $ | 228,620 |  |  | $ | 34,382 |  |  | $ | 129,596 |  |  | $ | 37,294 |
Total Commercial [Member] |
Accounts Notes And Loans Receivable [Line Items] |
Credit Quality Indicators by Segments and Portfolio Class | The following tables present the credit quality indicators by segments and portfolio class of loans at September 30, 2019 and December 31, 2018.
|  | September 30, 2019 |
(in thousands) |  | Commercial non-real estate |  |  | Commercial real estate - owner- occupied |  |  | Total commercial and industrial |  |  | Commercial real estate - income producing |  |  | Construction and land development |  |  | Total commercial |
Grade: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass |  | $ | 8,193,707 |  |  | $ | 2,498,260 |  |  | $ | 10,691,967 |  |  | $ | 2,941,146 |  |  | $ | 1,149,268 |  |  | $ | 14,782,381 |
Pass-Watch |  |  | 209,523 |  |  |  | 132,611 |  |  |  | 342,134 |  |  |  | 64,280 |  |  |  | 30,455 |  |  | $ | 436,869 |
Special Mention |  |  | 84,741 |  |  |  | 18,697 |  |  |  | 103,438 |  |  |  | 15,409 |  |  |  | 81 |  |  | $ | 118,928 |
Substandard |  |  | 405,025 |  |  |  | 84,811 |  |  |  | 489,836 |  |  |  | 39,733 |  |  |  | 10,914 |  |  | $ | 540,483 |
Doubtful |  |  | 8 |  |  |  | — |  |  |  | 8 |  |  |  | — |  |  |  | — |  |  | $ | 8 |
Total |  | $ | 8,893,004 |  |  | $ | 2,734,379 |  |  | $ | 11,627,383 |  |  | $ | 3,060,568 |  |  | $ | 1,190,718 |  |  | $ | 15,878,669 |
|  | December 31, 2018 |
(in thousands) |  | Commercial non-real estate |  |  | Commercial real estate - owner- occupied |  |  | Total commercial and industrial |  |  | Commercial real estate - income producing |  |  | Construction and land development |  |  | Total commercial |
Grade: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass |  | $ | 7,875,588 |  |  | $ | 2,274,211 |  |  | $ | 10,149,799 |  |  |  | 2,265,087 |  |  | $ | 1,487,599 |  |  | $ | 13,902,485 |
Pass-Watch |  |  | 260,510 |  |  |  | 84,271 |  |  |  | 344,781 |  |  |  | 46,535 |  |  |  | 49,099 |  |  |  | 440,415 |
Special Mention |  |  | 75,752 |  |  |  | 23,149 |  |  |  | 98,901 |  |  |  | 5,510 |  |  |  | 816 |  |  |  | 105,227 |
Substandard |  |  | 408,751 |  |  |  | 76,117 |  |  |  | 484,868 |  |  |  | 24,647 |  |  |  | 10,821 |  |  |  | 520,336 |
Doubtful |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 8,620,601 |  |  | $ | 2,457,748 |  |  | $ | 11,078,349 |  |  | $ | 2,341,779 |  |  | $ | 1,548,335 |  |  | $ | 14,968,463 |
Residential Mortgage and Consumer [Member] |
Accounts Notes And Loans Receivable [Line Items] |
Credit Quality Indicators by Segments and Portfolio Class |
|  | September 30, 2019 |  |  | December 31, 2018 |
(in thousands) |  | Residential mortgage |  |  | Consumer |  |  | Total |  |  | Residential mortgage |  |  | Consumer |  |  | Total |
Performing |  | $ | 2,966,578 |  |  | $ | 2,134,360 |  |  | $ | 5,100,938 |  |  | $ | 2,873,669 |  |  | $ | 2,130,395 |  |  | $ | 5,004,064 |
Nonperforming |  |  | 38,380 |  |  |  | 17,965 |  |  | $ | 56,345 |  |  |  | 36,412 |  |  |  | 17,472 |  |  |  | 53,884 |
Total |  | $ | 3,004,958 |  |  | $ | 2,152,325 |  |  | $ | 5,157,283 |  |  | $ | 2,910,081 |  |  | $ | 2,147,867 |  |  | $ | 5,057,948 |

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