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Allowance for Loan and Lease Losses (Allocation of Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | $ 1,665,896 | $ 2,092,936 |
Allowance for loan and lease losses | 206,783 |  | $ 206,216
Loans and Leases Receivable, Net Amount | 20,210,906 |  | 20,033,774
PCI Loans |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Acquired loans which have adverse change in expected cash flows | 479,200 |  | 469,300
Provision for Loan, Lease, and Other Losses | (1,997) | (2,864) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 558 | 1,146 |
Recoveries | 0 | 0 |
PCI Loans | Commercial | Construction and land development |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | (349) | 191 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 0 |
Recoveries | 0 | 0 |
PCI Loans | Commercial | Mortgage |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | (980) | (925) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 108 | 334 |
Recoveries | 0 | 0 |
PCI Loans | Commercial | Other commercial real estate |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | 2 | 119 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 5 | 0 |
Recoveries | 0 | 0 |
PCI Loans | Commercial | Commercial and industrial |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | (220) | (1,031) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 198 |
Recoveries | 0 | 0 |
PCI Loans | Noncommercial | Construction and land development |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | 0 | (152) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 0 |
Recoveries | 0 | 0 |
PCI Loans | Noncommercial | Consumer and Other |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | 5 | 452 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 74 | 456 |
Recoveries | 0 | 0 |
PCI Loans | Noncommercial | Mortgage |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | (347) | (863) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 371 | 85 |
Recoveries | 0 | 0 |
PCI Loans | Noncommercial | Revolving mortgage |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for Loan, Lease, and Other Losses | (108) | (655) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 73 |
Recoveries | 0 | 0 |
Non-PCI Loans |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total impaired noncovered loans and leases | 140,680 |  | 150,367
Unpaid principal balance | 156,941 |  | 167,966
Impaired Financing Receivable, Related Allowance | 6,776 |  | 7,200
ALLL for loans and leases individually evaluated for impairment | 6,776 |  | 7,200
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 59,113 |  | 66,861
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 81,567 |  | 83,506
Financing Receivable, Individually Evaluated for Impairment | 140,680 |  | 150,367
Average balance | 146,442 | 121,995 |
Interest income recognized | 1,225 | 1,093 |
Provision for Loan, Lease, and Other Losses | 6,840 | 8,656 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 6,222 | 6,030 |
Recoveries | 2,504 | 2,471 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 186,250 |  | 182,704
Financing Receivable, Collectively Evaluated for Impairment | 19,331,122 |  | 19,139,107
Loans and Leases Receivable, Net Amount | 19,471,802 |  | 19,289,474
Non-PCI Loans | Commercial | Construction and land development |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 4,602 |  | 4,428
ALLL for loans and leases individually evaluated for impairment | 83 |  | 123
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,356 |  | 1,623
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 1,891 |  | 1,471
Financing Receivable, Individually Evaluated for Impairment | 3,247 |  | 3,094
Average balance | 3,164 | 3,052 |
Interest income recognized | 41 | 35 |
Provision for Loan, Lease, and Other Losses | 943 | 1,103 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 426 | 18 |
Recoveries | 80 | 62 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 16,802 |  | 16,165
Financing Receivable, Collectively Evaluated for Impairment | 623,064 |  | 617,258
Loans and Leases Receivable, Net Amount | 626,311 |  | 620,352
Non-PCI Loans | Commercial | Mortgage |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 97,320 |  | 103,763
ALLL for loans and leases individually evaluated for impairment | 3,467 |  | 3,370
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 37,464 |  | 41,793
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 50,984 |  | 53,314
Financing Receivable, Individually Evaluated for Impairment | 88,448 |  | 95,107
Average balance | 92,945 | 80,553 |
Interest income recognized | 766 | 769 |
Provision for Loan, Lease, and Other Losses | 394 | (3,679) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 90 | 233 |
Recoveries | 256 | 761 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 66,989 |  | 66,526
Financing Receivable, Collectively Evaluated for Impairment | 8,265,183 |  | 8,179,441
Loans and Leases Receivable, Net Amount | 8,353,631 |  | 8,274,548
Non-PCI Loans | Commercial | Other commercial real estate |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 858 |  | 863
ALLL for loans and leases individually evaluated for impairment | 282 |  | 289
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 297 |  | 305
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 121 |  | 122
Financing Receivable, Individually Evaluated for Impairment | 418 |  | 427
Average balance | 423 | 551 |
Interest income recognized | 5 | 1 |
Provision for Loan, Lease, and Other Losses | (104) | 458 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 169 |
Recoveries | 143 | 10 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,925 |  | 1,879
Financing Receivable, Collectively Evaluated for Impairment | 324,440 |  | 320,594
Loans and Leases Receivable, Net Amount | 324,858 |  | 321,021
Non-PCI Loans | Commercial | Commercial and industrial |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 16,692 |  | 21,455
ALLL for loans and leases individually evaluated for impairment | 650 |  | 1,118
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 5,356 |  | 8,544
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 8,364 |  | 9,366
Financing Receivable, Individually Evaluated for Impairment | 13,720 |  | 17,910
Average balance | 15,551 | 14,229 |
Interest income recognized | 151 | 103 |
Provision for Loan, Lease, and Other Losses | 2,201 | 7,546 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 1,317 | 1,713 |
Recoveries | 479 | 394 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 43,829 |  | 41,998
Financing Receivable, Collectively Evaluated for Impairment | 2,376,226 |  | 2,351,048
Loans and Leases Receivable, Net Amount | 2,389,946 |  | 2,368,958
Non-PCI Loans | Commercial | Lease financing |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 1,577 |  | 1,956
ALLL for loans and leases individually evaluated for impairment | 191 |  | 213
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,304 |  | 1,651
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 224 |  | 104
Financing Receivable, Individually Evaluated for Impairment | 1,528 |  | 1,755
Average balance | 1,657 | 1,590 |
Interest income recognized | 20 | 18 |
Provision for Loan, Lease, and Other Losses | (282) | 11 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 15 |
Recoveries | 180 | 11 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 5,231 |  | 5,311
Financing Receivable, Collectively Evaluated for Impairment | 749,764 |  | 729,023
Loans and Leases Receivable, Net Amount | 751,292 |  | 730,778
Non-PCI Loans | Commercial | Other |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 1,037 |  | 1,260
ALLL for loans and leases individually evaluated for impairment | 49 |  | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 898 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 62 |  | 1,183
Financing Receivable, Individually Evaluated for Impairment | 960 |  | 1,183
Average balance | 1,072 | 1,990 |
Interest income recognized | 14 | 0 |
Provision for Loan, Lease, and Other Losses | (328) | (218) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 71 | 0 |
Recoveries | 321 | 15 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,728 |  | 1,855
Financing Receivable, Collectively Evaluated for Impairment | 342,917 |  | 313,649
Loans and Leases Receivable, Net Amount | 343,877 |  | 314,832
Non-PCI Loans | Noncommercial | Construction and land development |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 416 |  | 784
ALLL for loans and leases individually evaluated for impairment | 27 |  | 49
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 416 |  | 693
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 0 |  | 91
Financing Receivable, Individually Evaluated for Impairment | 416 |  | 784
Average balance | 556 | 658 |
Interest income recognized | 6 | 7 |
Provision for Loan, Lease, and Other Losses | 87 | 118 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 22 |
Recoveries | 3 | 68 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,548 |  | 1,436
Financing Receivable, Collectively Evaluated for Impairment | 212,816 |  | 219,289
Loans and Leases Receivable, Net Amount | 213,232 |  | 220,073
Non-PCI Loans | Noncommercial | Mortgage |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 24,989 |  | 25,043
ALLL for loans and leases individually evaluated for impairment | 1,203 |  | 1,212
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 10,001 |  | 10,097
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 14,024 |  | 12,889
Financing Receivable, Individually Evaluated for Impairment | 24,025 |  | 22,986
Average balance | 23,500 | 15,364 |
Interest income recognized | 172 | 125 |
Provision for Loan, Lease, and Other Losses | 776 | 813 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 174 | 284 |
Recoveries | 20 | 138 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 13,524 |  | 12,893
Financing Receivable, Collectively Evaluated for Impairment | 2,694,183 |  | 2,672,999
Loans and Leases Receivable, Net Amount | 2,718,208 |  | 2,695,985
Non-PCI Loans | Noncommercial | Revolving mortgage |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 8,049 |  | 7,120
ALLL for loans and leases individually evaluated for impairment | 310 |  | 299
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,059 |  | 1,105
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 5,535 |  | 4,778
Financing Receivable, Individually Evaluated for Impairment | 6,594 |  | 5,883
Average balance | 6,309 | 2,986 |
Interest income recognized | 32 | 16 |
Provision for Loan, Lease, and Other Losses | 1,158 | (462) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 1,036 | 793 |
Recoveries | 32 | 134 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 15,815 |  | 15,672
Financing Receivable, Collectively Evaluated for Impairment | 2,515,308 |  | 2,517,223
Loans and Leases Receivable, Net Amount | 2,521,902 |  | 2,523,106
Non-PCI Loans | Noncommercial | Consumer |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Unpaid principal balance | 1,401 |  | 1,294
ALLL for loans and leases individually evaluated for impairment | 514 |  | 527
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 962 |  | 1,050
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 362 |  | 188
Financing Receivable, Individually Evaluated for Impairment | 1,324 |  | 1,238
Average balance | 1,265 | 1,022 |
Interest income recognized | 18 | 19 |
Provision for Loan, Lease, and Other Losses | 1,995 | 2,966 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 3,108 | 2,783 |
Recoveries | 990 | $ 878 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 18,859 |  | 18,969
Financing Receivable, Collectively Evaluated for Impairment | 1,227,221 |  | 1,218,583
Loans and Leases Receivable, Net Amount | $ 1,228,545 |  | $ 1,219,821

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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524 + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 4: http://www.xbrl.org/2003/role/presentationRef -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=6379141&loc=d3e15032-111544 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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