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Allowance for Loan and Lease Losses (Summary of Activity In Allowance for Loan and Lease Losses) (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |
Impaired Loans and Leases, Baseline for Meaurement |  |  |  |  |  | $ 500,000 |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Net loans and leases |  |  |  |  | $ 19,650,343,000 | 18,564,999,000 |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 1,044,064,000 | 1,186,498,000 | $ 996,280,000 | $ 1,029,426,000
Allowance for loan and lease losses |  |  |  |  | 205,463,000 | 204,466,000 |  |
Commercial |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 646,961,000 | 726,123,000 |  |
Commercial | Construction and land development |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 41,582,000 | 78,079,000 |  |
Commercial | Mortgage |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 568,256,000 | 577,518,000 |  |
Commercial | Other commercial real estate |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 18,013,000 | 40,193,000 |  |
Commercial | Commercial and industrial |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 17,023,000 | 27,254,000 |  |
Commercial | Other |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 2,087,000 | 3,079,000 |  |
Noncommerical |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 397,103,000 | 460,375,000 |  |
Noncommerical | Construction and land development |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 347,000 | 912,000 |  |
Noncommerical | Mortgage |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 334,518,000 | 382,340,000 |  |
Noncommerical | Revolving mortgage |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 59,695,000 | 74,109,000 |  |
Noncommerical | Consumer |  |  |  |  |  |  |  |
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 2,543,000 | 3,014,000 |  |
Non-PCI Loans |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, Related Allowance |  |  |  |  | 8,491,000 | 15,717,000 |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | $ 192,849,000 | $ 176,915,000 | $ 182,837,000 | $ 179,874,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | (2,662,000) | 1,734,000 | 14,988,000 | 4,334,000 |  |  |  |
Charge-offs | (5,018,000) | (5,387,000) | (17,098,000) | (14,578,000) |  |  |  |
Recoveries | 2,737,000 | 1,843,000 | 7,179,000 | 5,475,000 |  |  |  |
Ending balance | 187,906,000 | 175,105,000 | 187,906,000 | 175,105,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 142,962,000 | 119,593,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 18,668,780,000 | 17,463,374,000 |  |
Net loans and leases |  |  |  |  | 18,811,742,000 | 17,582,967,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 8,491,000 | 15,717,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 179,415,000 | 167,120,000 |  |
Total allowance for loan and lease losses | 192,849,000 | 176,915,000 | 182,837,000 | 179,874,000 | 187,906,000 | 182,837,000 | 175,105,000 | 179,874,000
Non-PCI Loans | Commercial | Construction and land development |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 13,079,000 | 11,116,000 | 11,961,000 | 10,335,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 1,189,000 | 1,469,000 | 2,380,000 | 2,219,000 |  |  |  |
Charge-offs | (336,000) | 0 | (575,000) | 0 |  |  |  |
Recoveries | 129,000 | 15,000 | 295,000 | 46,000 |  |  |  |
Ending balance | 14,061,000 | 12,600,000 | 14,061,000 | 12,600,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 3,194,000 | 1,620,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 560,732,000 | 491,513,000 |  |
Net loans and leases |  |  |  |  | 563,926,000 | 493,133,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 417,000 | 92,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 13,644,000 | 11,869,000 |  |
Total allowance for loan and lease losses | 13,079,000 | 11,116,000 | 11,961,000 | 10,335,000 | 14,061,000 | 11,961,000 | 12,600,000 | 10,335,000
Non-PCI Loans | Commercial | Mortgage |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 80,436,000 | 92,129,000 | 85,189,000 | 100,257,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | (5,664,000) | (8,082,000) | (11,221,000) | (17,021,000) |  |  |  |
Charge-offs | (411,000) | (277,000) | (691,000) | (718,000) |  |  |  |
Recoveries | 794,000 | 476,000 | 1,878,000 | 1,728,000 |  |  |  |
Ending balance | 75,155,000 | 84,246,000 | 75,155,000 | 84,246,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 92,745,000 | 82,803,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 7,984,201,000 | 7,470,145,000 |  |
Net loans and leases |  |  |  |  | 8,076,946,000 | 7,552,948,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 4,007,000 | 8,610,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 71,148,000 | 76,579,000 |  |
Total allowance for loan and lease losses | 80,436,000 | 92,129,000 | 85,189,000 | 100,257,000 | 75,155,000 | 85,189,000 | 84,246,000 | 100,257,000
Non-PCI Loans | Commercial | Other commercial real estate |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 804,000 | 806,000 | 732,000 | 1,009,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 291,000 | 61,000 | 522,000 | (167,000) |  |  |  |
Charge-offs | 0 | 0 | (178,000) | 0 |  |  |  |
Recoveries | 15,000 | 8,000 | 34,000 | 33,000 |  |  |  |
Ending balance | 1,110,000 | 875,000 | 1,110,000 | 875,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 436,000 | 584,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 316,488,000 | 244,291,000 |  |
Net loans and leases |  |  |  |  | 316,924,000 | 244,875,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 295,000 | 112,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 815,000 | 620,000 |  |
Total allowance for loan and lease losses | 804,000 | 806,000 | 732,000 | 1,009,000 | 1,110,000 | 732,000 | 875,000 | 1,009,000
Non-PCI Loans | Commercial | Commercial and industrial |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 39,392,000 | 26,909,000 | 30,727,000 | 22,362,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | (799,000) | 4,361,000 | 11,294,000 | 9,369,000 |  |  |  |
Charge-offs | (784,000) | (1,414,000) | (4,815,000) | (2,440,000) |  |  |  |
Recoveries | 296,000 | 227,000 | 899,000 | 792,000 |  |  |  |
Ending balance | 38,105,000 | 30,083,000 | 38,105,000 | 30,083,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 16,395,000 | 11,040,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 2,195,578,000 | 1,977,894,000 |  |
Net loans and leases |  |  |  |  | 2,211,973,000 | 1,988,934,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 1,154,000 | 1,743,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 36,951,000 | 28,984,000 |  |
Total allowance for loan and lease losses | 39,392,000 | 26,909,000 | 30,727,000 | 22,362,000 | 38,105,000 | 30,727,000 | 30,083,000 | 22,362,000
Non-PCI Loans | Commercial | Lease financing |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 4,706,000 | 4,365,000 | 4,286,000 | 4,749,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 424,000 | (71,000) | 843,000 | (420,000) |  |  |  |
Charge-offs | (7,000) | (28,000) | (28,000) | (100,000) |  |  |  |
Recoveries | 16,000 | 34,000 | 38,000 | 71,000 |  |  |  |
Ending balance | 5,139,000 | 4,300,000 | 5,139,000 | 4,300,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 1,908,000 | 623,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 690,007,000 | 571,293,000 |  |
Net loans and leases |  |  |  |  | 691,915,000 | 571,916,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 291,000 | 150,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 4,848,000 | 4,136,000 |  |
Total allowance for loan and lease losses | 4,706,000 | 4,365,000 | 4,286,000 | 4,749,000 | 5,139,000 | 4,286,000 | 4,300,000 | 4,749,000
Non-PCI Loans | Commercial | Other |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 1,188,000 | 612,000 | 3,184,000 | 190,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | (58,000) | 127,000 | (2,100,000) | 562,000 |  |  |  |
Charge-offs | 0 | 0 | 0 | (13,000) |  |  |  |
Recoveries | 45,000 | 0 | 91,000 | 0 |  |  |  |
Ending balance | 1,175,000 | 739,000 | 1,175,000 | 739,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 1,464,000 | 2,000,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 356,296,000 | 351,833,000 |  |
Net loans and leases |  |  |  |  | 357,760,000 | 353,833,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 67,000 | 1,972,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 1,108,000 | 1,212,000 |  |
Total allowance for loan and lease losses | 1,188,000 | 612,000 | 3,184,000 | 190,000 | 1,175,000 | 3,184,000 | 739,000 | 190,000
Non-PCI Loans | Noncommerical | Construction and land development |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 1,133,000 | 905,000 | 892,000 | 681,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 114,000 | 21,000 | 306,000 | 274,000 |  |  |  |
Charge-offs | 0 | (45,000) | (22,000) | (138,000) |  |  |  |
Recoveries | 3,000 | 14,000 | 74,000 | 78,000 |  |  |  |
Ending balance | 1,250,000 | 895,000 | 1,250,000 | 895,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 1,045,000 | 1,340,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 219,448,000 | 203,676,000 |  |
Net loans and leases |  |  |  |  | 220,493,000 | 205,016,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 78,000 | 71,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 1,172,000 | 821,000 |  |
Total allowance for loan and lease losses | 1,133,000 | 905,000 | 892,000 | 681,000 | 1,250,000 | 892,000 | 895,000 | 681,000
Non-PCI Loans | Noncommerical | Mortgage |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 12,705,000 | 9,301,000 | 10,661,000 | 10,511,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 520,000 | 15,000 | 2,495,000 | (933,000) |  |  |  |
Charge-offs | (394,000) | (231,000) | (768,000) | (649,000) |  |  |  |
Recoveries | 314,000 | 28,000 | 757,000 | 184,000 |  |  |  |
Ending balance | 13,145,000 | 9,113,000 | 13,145,000 | 9,113,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 19,691,000 | 14,913,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 2,640,130,000 | 2,478,145,000 |  |
Net loans and leases |  |  |  |  | 2,659,821,000 | 2,493,058,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 1,158,000 | 1,360,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 11,987,000 | 9,301,000 |  |
Total allowance for loan and lease losses | 12,705,000 | 9,301,000 | 10,661,000 | 10,511,000 | 13,145,000 | 10,661,000 | 9,113,000 | 10,511,000
Non-PCI Loans | Noncommerical | Revolving mortgage |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 17,290,000 | 16,797,000 | 18,650,000 | 16,239,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 871,000 | 2,075,000 | 440,000 | 4,681,000 |  |  |  |
Charge-offs | (677,000) | (925,000) | (2,086,000) | (3,249,000) |  |  |  |
Recoveries | 363,000 | 174,000 | 843,000 | 450,000 |  |  |  |
Ending balance | 17,847,000 | 18,121,000 | 17,847,000 | 18,121,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 4,986,000 | 3,675,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 2,514,986,000 | 2,558,125,000 |  |
Net loans and leases |  |  |  |  | 2,519,972,000 | 2,561,800,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 526,000 | 1,052,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 17,321,000 | 17,598,000 |  |
Total allowance for loan and lease losses | 17,290,000 | 16,797,000 | 18,650,000 | 16,239,000 | 17,847,000 | 18,650,000 | 18,121,000 | 16,239,000
Non-PCI Loans | Noncommerical | Consumer |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 22,116,000 | 13,975,000 | 16,555,000 | 13,541,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 450,000 | 1,758,000 | 10,029,000 | 5,770,000 |  |  |  |
Charge-offs | (2,409,000) | (2,467,000) | (7,935,000) | (7,271,000) |  |  |  |
Recoveries | 762,000 | 867,000 | 2,270,000 | 2,093,000 |  |  |  |
Ending balance | 20,919,000 | 14,133,000 | 20,919,000 | 14,133,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment |  |  |  |  | 1,098,000 | 995,000 |  |
Loans and leases collectively evaluated for impairment |  |  |  |  | 1,190,914,000 | 1,116,459,000 |  |
Net loans and leases |  |  |  |  | 1,192,012,000 | 1,117,454,000 |  |
ALLL for loans and leases individually evaluated for impairment |  |  |  |  | 498,000 | 555,000 |  |
ALLL for loans and leases collectively evaluated for impairment |  |  |  |  | 20,421,000 | 16,000,000 |  |
Total allowance for loan and lease losses | 22,116,000 | 13,975,000 | 16,555,000 | 13,541,000 | 20,919,000 | 16,555,000 | 14,133,000 | 13,541,000
PCI Loans |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 15,468,000 | 29,331,000 | 21,629,000 | 53,520,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 2,769,000 | (197,000) | (1,370,000) | (11,999,000) |  |  |  |
Charge-offs | (680,000) | (3,334,000) | (2,702,000) | (15,721,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 17,557,000 | 25,800,000 | 17,557,000 | 25,800,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 15,468,000 | 29,331,000 | 21,629,000 | 53,520,000 | 17,557,000 | 21,629,000 | 25,800,000 | 53,520,000
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | 1,044,064,000 | 1,186,498,000 |  |
PCI Loans | Commercial | Construction and land development |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 569,000 | 3,803,000 | 150,000 | 1,320,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 632,000 | (1,815,000) | 1,148,000 | 1,463,000 |  |  |  |
Charge-offs | 0 | (1,633,000) | (97,000) | (2,428,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 1,201,000 | 355,000 | 1,201,000 | 355,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 569,000 | 3,803,000 | 150,000 | 1,320,000 | 1,201,000 | 150,000 | 355,000 | 1,320,000
PCI Loans | Commercial | Mortgage |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 6,428,000 | 17,315,000 | 10,135,000 | 29,906,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 2,187,000 | (2,374,000) | (803,000) | (6,946,000) |  |  |  |
Charge-offs | (48,000) | (2,357,000) | (765,000) | (10,376,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 8,567,000 | 12,584,000 | 8,567,000 | 12,584,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 6,428,000 | 17,315,000 | 10,135,000 | 29,906,000 | 8,567,000 | 10,135,000 | 12,584,000 | 29,906,000
PCI Loans | Commercial | Other commercial real estate |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 69,000 | 407,000 | 75,000 | 1,354,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | $ 235,000 | (435,000) | 229,000 | (1,382,000) |  |  |  |
Charge-offs |  | 106,000 | 0 | 106,000 |  |  |  |
Recoveries | $ 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 304,000 | 78,000 | 304,000 | 78,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 69,000 | 407,000 | 75,000 | 1,354,000 | 304,000 | 75,000 | 78,000 | 1,354,000
PCI Loans | Commercial | Commercial and industrial |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 323,000 | 375,000 | 1,240,000 | 5,275,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 118,000 | 182,000 | (514,000) | (1,883,000) |  |  |  |
Charge-offs | (39,000) | 839,000 | (324,000) | (1,996,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 402,000 | 1,396,000 | 402,000 | 1,396,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 323,000 | 375,000 | 1,240,000 | 5,275,000 | 402,000 | 1,240,000 | 1,396,000 | 5,275,000
PCI Loans | Noncommerical | Construction and land development |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 0 | 0 | 183,000 | 682,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 0 | 239,000 | (183,000) | (443,000) |  |  |  |
Charge-offs | 0 | (83,000) | 0 | (83,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 0 | 156,000 | 0 | 156,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 0 | 0 | 183,000 | 682,000 | 0 | 183,000 | 156,000 | 682,000
PCI Loans | Noncommerical | Mortgage |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 5,842,000 | 7,093,000 | 5,820,000 | 11,802,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | (281,000) | 187,000 | 21,000 | (4,289,000) |  |  |  |
Charge-offs | (15,000) | (188,000) | (295,000) | (421,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 5,546,000 | 7,092,000 | 5,546,000 | 7,092,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 5,842,000 | 7,093,000 | 5,820,000 | 11,802,000 | 5,546,000 | 5,820,000 | 7,092,000 | 11,802,000
PCI Loans | Noncommerical | Revolving mortgage |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 2,051,000 | 81,000 | 3,999,000 | 2,959,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | (151,000) | 3,899,000 | (1,918,000) | 1,502,000 |  |  |  |
Charge-offs | (577,000) | (1,000) | (758,000) | (482,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 1,323,000 | 3,979,000 | 1,323,000 | 3,979,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 2,051,000 | 81,000 | 3,999,000 | 2,959,000 | 1,323,000 | 3,999,000 | 3,979,000 | 2,959,000
PCI Loans | Noncommerical | Consumer and Other |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 186,000 | 257,000 | 27,000 | 222,000 |  |  |  |
Provision for Loan, Lease, and Other Losses | 29,000 | (80,000) | 650,000 | (21,000) |  |  |  |
Charge-offs | (1,000) | (17,000) | (463,000) | (41,000) |  |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |  |
Ending balance | 214,000 | 160,000 | 214,000 | 160,000 |  |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | $ 186,000 | $ 257,000 | $ 27,000 | $ 222,000 | 214,000 | 27,000 | $ 160,000 | $ 222,000
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |
Loans and leases acquired with deteriorated credit quality |  |  |  |  | $ 4,630,000 | $ 6,093,000 |  |

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