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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 | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | $ 1,614,998 | $ 2,025,905 | $ 1,614,998 | $ 2,025,905 |
Allowance for loan and lease losses | 208,008 |  | 208,008 |  | $ 206,216
Loans and Leases Receivable, Net Amount | 20,534,563 |  | 20,534,563 |  | 20,033,774
PCI Loans |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Acquired loans which have adverse change in expected cash flows | 394,600 |  | 394,600 |  | 469,300
Provision for Loan, Lease, and Other Losses | (2,146) | (1,275) | (4,143) | (4,139) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 56 | 876 | 614 | 2,022 |
Recoveries | 0 | 0 | 0 | 0 |
PCI Loans | Commercial | Construction and land development |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Provision for Loan, Lease, and Other Losses | (453) | 325 | (802) | 516 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 97 | 0 | 97 |
Recoveries | 0 | 0 | 0 | 0 |
PCI Loans | Commercial | Mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Provision for Loan, Lease, and Other Losses | (935) | (2,065) | (1,914) | (2,990) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 56 | 383 | 165 | 717 |
Recoveries | 0 | 0 | 0 | 0 |
PCI Loans | Commercial | Other commercial real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Provision for Loan, Lease, and Other Losses | (154) | (125) | (152) | (6) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 0 | 5 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
PCI Loans | Commercial | Commercial and industrial |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Provision for Loan, Lease, and Other Losses | 60 | 399 | (160) | (632) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 87 | 0 | 285 |
Recoveries | 0 | 0 | 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 | (31) | 0 | (183) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
PCI Loans | Noncommercial | Consumer and Other |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Provision for Loan, Lease, and Other Losses | (105) | 169 | (101) | 621 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 6 | 73 | 462 |
Recoveries | 0 | 0 | 0 | 0 |
PCI Loans | Noncommercial | Mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Provision for Loan, Lease, and Other Losses | (382) | 1,165 | (729) | 302 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 195 | 371 | 280 |
Recoveries | 0 | 0 | 0 | 0 |
PCI Loans | Noncommercial | Revolving mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Provision for Loan, Lease, and Other Losses | (177) | (1,112) | (285) | (1,767) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 108 | 0 | 181 |
Recoveries | 0 | 0 | 0 | 0 |
Non-PCI Loans |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Total impaired noncovered loans and leases | 130,393 |  | 130,393 |  | 150,367
Unpaid principal balance | 140,804 |  | 140,804 |  | 167,966
Impaired Financing Receivable, Related Allowance | 9,259 |  | 9,259 |  | 7,200
ALLL for loans and leases individually evaluated for impairment | 9,259 |  | 9,259 |  | 7,200
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 69,135 |  | 69,135 |  | 66,861
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 61,258 |  | 61,258 |  | 83,506
Financing Receivable, Individually Evaluated for Impairment | 130,393 |  | 130,393 |  | 150,367
Average balance | 128,759 | 129,943 | 137,601 | 123,745 |
Interest income recognized | 1,015 | 1,224 | 2,240 | 2,310 |
Provision for Loan, Lease, and Other Losses | 6,708 | 8,994 | 13,548 | 17,650 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 5,841 | 6,050 | 12,061 | 12,080 |
Recoveries | 2,560 | 1,971 | 5,062 | 4,442 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 187,194 |  | 187,194 |  | 182,704
Financing Receivable, Collectively Evaluated for Impairment | 19,690,711 |  | 19,690,711 |  | 19,139,107
Loans and Leases Receivable, Net Amount | 19,821,104 |  | 19,821,104 |  | 19,289,474
Non-PCI Loans | Commercial | Construction and land development |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 3,800 |  | 3,800 |  | 4,428
ALLL for loans and leases individually evaluated for impairment | 333 |  | 333 |  | 123
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 2,164 |  | 2,164 |  | 1,623
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 1,135 |  | 1,135 |  | 1,471
Financing Receivable, Individually Evaluated for Impairment | 3,299 |  | 3,299 |  | 3,094
Average balance | 3,236 | 3,134 | 3,200 | 3,093 |
Interest income recognized | 40 | 35 | 81 | 70 |
Provision for Loan, Lease, and Other Losses | 291 | 88 | 1,234 | 1,191 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 136 | 221 | 562 | 239 |
Recoveries | 129 | 104 | 209 | 166 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 16,836 |  | 16,836 |  | 16,165
Financing Receivable, Collectively Evaluated for Impairment | 621,507 |  | 621,507 |  | 617,258
Loans and Leases Receivable, Net Amount | 624,806 |  | 624,806 |  | 620,352
Non-PCI Loans | Commercial | Mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 84,095 |  | 84,095 |  | 103,763
ALLL for loans and leases individually evaluated for impairment | 4,248 |  | 4,248 |  | 3,370
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 37,960 |  | 37,960 |  | 41,793
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 39,660 |  | 39,660 |  | 53,314
Financing Receivable, Individually Evaluated for Impairment | 77,620 |  | 77,620 |  | 95,107
Average balance | 79,442 | 86,253 | 86,193 | 83,115 |
Interest income recognized | 616 | 840 | 1,382 | 1,602 |
Provision for Loan, Lease, and Other Losses | 701 | (1,878) | 1,096 | (5,557) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 44 | 47 | 134 | 280 |
Recoveries | 500 | 323 | 755 | 1,084 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 67,365 |  | 67,365 |  | 66,526
Financing Receivable, Collectively Evaluated for Impairment | 8,427,639 |  | 8,427,639 |  | 8,179,441
Loans and Leases Receivable, Net Amount | 8,505,259 |  | 8,505,259 |  | 8,274,548
Non-PCI Loans | Commercial | Other commercial real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 1,875 |  | 1,875 |  | 863
ALLL for loans and leases individually evaluated for impairment | 119 |  | 119 |  | 289
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 578 |  | 578 |  | 305
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 973 |  | 973 |  | 122
Financing Receivable, Individually Evaluated for Impairment | 1,551 |  | 1,551 |  | 427
Average balance | 878 | 403 | 651 | 477 |
Interest income recognized | 7 | 0 | 12 | 1 |
Provision for Loan, Lease, and Other Losses | (79) | (227) | (184) | 231 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 9 | 0 | 178 |
Recoveries | 10 | 9 | 154 | 19 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 2,019 |  | 2,019 |  | 1,879
Financing Receivable, Collectively Evaluated for Impairment | 336,067 |  | 336,067 |  | 320,594
Loans and Leases Receivable, Net Amount | 337,618 |  | 337,618 |  | 321,021
Non-PCI Loans | Commercial | Commercial and industrial |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 10,670 |  | 10,670 |  | 21,455
ALLL for loans and leases individually evaluated for impairment | 971 |  | 971 |  | 1,118
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 6,529 |  | 6,529 |  | 8,544
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 3,691 |  | 3,691 |  | 9,366
Financing Receivable, Individually Evaluated for Impairment | 10,220 |  | 10,220 |  | 17,910
Average balance | 9,938 | 14,088 | 12,744 | 12,220 |
Interest income recognized | 84 | 146 | 235 | 249 |
Provision for Loan, Lease, and Other Losses | 81 | 4,547 | 2,282 | 12,093 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 1,177 | 2,318 | 2,494 | 4,031 |
Recoveries | 525 | 209 | 1,004 | 603 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 42,937 |  | 42,937 |  | 41,998
Financing Receivable, Collectively Evaluated for Impairment | 2,375,939 |  | 2,375,939 |  | 2,351,048
Loans and Leases Receivable, Net Amount | 2,386,159 |  | 2,386,159 |  | 2,368,958
Non-PCI Loans | Commercial | Lease financing |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 1,233 |  | 1,233 |  | 1,956
ALLL for loans and leases individually evaluated for impairment | 45 |  | 45 |  | 213
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,209 |  | 1,209 |  | 1,651
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 24 |  | 24 |  | 104
Financing Receivable, Individually Evaluated for Impairment | 1,233 |  | 1,233 |  | 1,755
Average balance | 1,214 | 1,463 | 1,436 | 1,527 |
Interest income recognized | 15 | 16 | 35 | 34 |
Provision for Loan, Lease, and Other Losses | 343 | 408 | 62 | 419 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 6 | 0 | 21 |
Recoveries | 1 | 11 | 180 | 22 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 5,721 |  | 5,721 |  | 5,311
Financing Receivable, Collectively Evaluated for Impairment | 783,628 |  | 783,628 |  | 729,023
Loans and Leases Receivable, Net Amount | 784,861 |  | 784,861 |  | 730,778
Non-PCI Loans | Commercial | Other |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 783 |  | 783 |  | 1,260
ALLL for loans and leases individually evaluated for impairment | 0 |  | 0 |  | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 0 |  | 0 |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 695 |  | 695 |  | 1,183
Financing Receivable, Individually Evaluated for Impairment | 695 |  | 695 |  | 1,183
Average balance | 813 | 1,835 | 943 | 1,913 |
Interest income recognized | 10 | 0 | 24 | 0 |
Provision for Loan, Lease, and Other Losses | 37 | (1,824) | (290) | (2,042) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 88 | 0 | 160 | 0 |
Recoveries | 29 | 31 | 350 | 46 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,755 |  | 1,755 |  | 1,855
Financing Receivable, Collectively Evaluated for Impairment | 364,574 |  | 364,574 |  | 313,649
Loans and Leases Receivable, Net Amount | 365,269 |  | 365,269 |  | 314,832
Non-PCI Loans | Noncommercial | Construction and land development |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 411 |  | 411 |  | 784
ALLL for loans and leases individually evaluated for impairment | 0 |  | 0 |  | 49
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 0 |  | 0 |  | 693
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 411 |  | 411 |  | 91
Financing Receivable, Individually Evaluated for Impairment | 411 |  | 411 |  | 784
Average balance | 413 | 779 | 485 | 719 |
Interest income recognized | 5 | 9 | 11 | 16 |
Provision for Loan, Lease, and Other Losses | 78 | 74 | 165 | 192 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 0 | 0 | 0 | 22 |
Recoveries | 0 | 3 | 3 | 71 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,653 |  | 1,653 |  | 1,436
Financing Receivable, Collectively Evaluated for Impairment | 225,911 |  | 225,911 |  | 219,289
Loans and Leases Receivable, Net Amount | 226,322 |  | 226,322 |  | 220,073
Non-PCI Loans | Noncommercial | Mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 27,772 |  | 27,772 |  | 25,043
ALLL for loans and leases individually evaluated for impairment | 1,992 |  | 1,992 |  | 1,212
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 14,734 |  | 14,734 |  | 10,097
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 12,046 |  | 12,046 |  | 12,889
Financing Receivable, Individually Evaluated for Impairment | 26,780 |  | 26,780 |  | 22,986
Average balance | 24,982 | 16,819 | 24,240 | 16,092 |
Interest income recognized | 178 | 135 | 350 | 260 |
Provision for Loan, Lease, and Other Losses | 1,487 | 1,162 | 2,262 | 1,975 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 179 | 90 | 352 | 374 |
Recoveries | 41 | 305 | 61 | 443 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 14,084 |  | 14,084 |  | 12,893
Financing Receivable, Collectively Evaluated for Impairment | 2,751,083 |  | 2,751,083 |  | 2,672,999
Loans and Leases Receivable, Net Amount | 2,777,863 |  | 2,777,863 |  | 2,695,985
Non-PCI Loans | Noncommercial | Revolving mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 8,607 |  | 8,607 |  | 7,120
ALLL for loans and leases individually evaluated for impairment | 868 |  | 868 |  | 299
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 4,654 |  | 4,654 |  | 1,105
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 2,459 |  | 2,459 |  | 4,778
Financing Receivable, Individually Evaluated for Impairment | 7,113 |  | 7,113 |  | 5,883
Average balance | 6,421 | 4,015 | 6,365 | 3,501 |
Interest income recognized | 40 | 23 | 72 | 39 |
Provision for Loan, Lease, and Other Losses | 1,470 | 31 | 2,628 | (431) |
Financing Receivable, Allowance for Credit Losses, Write-downs | 1,081 | 616 | 2,116 | 1,409 |
Recoveries | 214 | 346 | 245 | 480 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 15,860 |  | 15,860 |  | 15,672
Financing Receivable, Collectively Evaluated for Impairment | 2,526,415 |  | 2,526,415 |  | 2,517,223
Loans and Leases Receivable, Net Amount | 2,533,528 |  | 2,533,528 |  | 2,523,106
Non-PCI Loans | Noncommercial | Consumer |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Unpaid principal balance | 1,558 |  | 1,558 |  | 1,294
ALLL for loans and leases individually evaluated for impairment | 683 |  | 683 |  | 527
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 1,307 |  | 1,307 |  | 1,050
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 164 |  | 164 |  | 188
Financing Receivable, Individually Evaluated for Impairment | 1,471 |  | 1,471 |  | 1,238
Average balance | 1,422 | 1,154 | 1,344 | 1,088 |
Interest income recognized | 20 | 20 | 38 | 39 |
Provision for Loan, Lease, and Other Losses | 2,299 | 6,613 | 4,293 | 9,579 |
Financing Receivable, Allowance for Credit Losses, Write-downs | 3,136 | 2,743 | 6,243 | 5,526 |
Recoveries | 1,111 | $ 630 | 2,101 | $ 1,508 |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 18,964 |  | 18,964 |  | 18,969
Financing Receivable, Collectively Evaluated for Impairment | 1,277,948 |  | 1,277,948 |  | 1,218,583
Loans and Leases Receivable, Net Amount | $ 1,279,419 |  | $ 1,279,419 |  | $ 1,219,821

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- Definition Acquired Loans Which Have Adverse Change In Expected Cash Flows + References No definition available. + Details
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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=66008989&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=66008989&loc=SL6953423-111524 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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=66008989&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=66008989&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=66008989&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=66008989&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=66008989&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + 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)(2) -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524 + Details
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- Definition 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 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953550-111524 + Details
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