Loans and Allowance for Loan Losses - Aging of Financing Receivables (Details) (USD $) | Mar. 31, 2014 | Dec. 31, 2013 |
In Thousands, unless otherwise specified |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable Covered by Loss Sharing Agreement | $175,030 | $187,661 |
Loans and Leases Receivable, Net | 2,304,075 | 2,276,517 |
Financing Receivable | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 9,324 | 5,208 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 1,963 | 1,761 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 35,043 | 40,859 |
Financing Receivable, Recorded Investment, Total Past Due | 46,330 | 47,828 |
Financing Receivable, Recorded Investment, Current | 2,257,745 | 2,228,689 |
Loans and Leases Receivable, Net | 2,304,075 | 2,276,517 |
Originated | Commercial Real Estate | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 3,651 | 353 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 312 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 4,823 | 6,044 |
Financing Receivable, Recorded Investment, Total Past Due | 8,786 | 6,397 |
Financing Receivable, Recorded Investment, Current | 1,053,175 | 1,008,236 |
Loans and Leases Receivable, Net | 1,061,961 | 1,014,633 |
Originated | Commercial Construction | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 282 | 14 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 20 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 2,808 | 2,801 |
Financing Receivable, Recorded Investment, Total Past Due | 3,090 | 2,835 |
Financing Receivable, Recorded Investment, Current | 184,023 | 199,305 |
Loans and Leases Receivable, Net | 187,113 | 202,140 |
Originated | Commercial and Industrial | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 636 | 533 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 16 | 10 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 286 | 245 |
Financing Receivable, Recorded Investment, Total Past Due | 938 | 788 |
Financing Receivable, Recorded Investment, Current | 135,387 | 138,779 |
Loans and Leases Receivable, Net | 136,325 | 139,567 |
Originated | Leases | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Financing Receivable, Recorded Investment, Total Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Current | 16,286 | 16,137 |
Loans and Leases Receivable, Net | 16,286 | 16,137 |
Originated | Residential Construction | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Financing Receivable, Recorded Investment, Total Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Current | 31,506 | 29,636 |
Loans and Leases Receivable, Net | 31,506 | 29,636 |
Originated | Residential Mortgage | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 1,342 | 1,417 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 1,018 | 248 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 3,332 | 5,102 |
Financing Receivable, Recorded Investment, Total Past Due | 5,692 | 6,767 |
Financing Receivable, Recorded Investment, Current | 315,858 | 287,893 |
Loans and Leases Receivable, Net | 321,550 | 294,660 |
Originated | Consumer and Other | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 6 | 0 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 36 | 37 |
Financing Receivable, Recorded Investment, Total Past Due | 42 | 37 |
Financing Receivable, Recorded Investment, Current | 10,465 | 8,066 |
Loans and Leases Receivable, Net | 10,507 | 8,103 |
Originated | Financing Receivable | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 5,917 | 2,317 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 1,346 | 278 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 11,285 | 14,229 |
Financing Receivable, Recorded Investment, Total Past Due | 18,548 | 16,824 |
Financing Receivable, Recorded Investment, Current | 1,746,700 | 1,688,052 |
Loans and Leases Receivable, Net | 1,765,248 | 1,704,876 |
Acquired (non-covered) | Commercial Real Estate | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 306 | 116 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 94 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 593 | 605 |
Financing Receivable, Recorded Investment, Total Past Due | 993 | 721 |
Financing Receivable, Recorded Investment, Current | 210,321 | 220,850 |
Loans and Leases Receivable, Net | 211,314 | 221,571 |
Acquired (non-covered) | Commercial Construction | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 19 | 50 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Financing Receivable, Recorded Investment, Total Past Due | 19 | 50 |
Financing Receivable, Recorded Investment, Current | 21,351 | 24,039 |
Loans and Leases Receivable, Net | 21,370 | 24,089 |
Acquired (non-covered) | Commercial and Industrial | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 5 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 433 | 591 |
Financing Receivable, Recorded Investment, Total Past Due | 433 | 596 |
Financing Receivable, Recorded Investment, Current | 20,501 | 22,857 |
Loans and Leases Receivable, Net | 20,934 | 23,453 |
Acquired (non-covered) | Residential Construction | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Financing Receivable, Recorded Investment, Total Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Current | 2,790 | 2,782 |
Loans and Leases Receivable, Net | 2,790 | 2,782 |
Acquired (non-covered) | Residential Mortgage | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 530 | 950 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 19 | 514 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 1,906 | 1,665 |
Financing Receivable, Recorded Investment, Total Past Due | 2,455 | 3,129 |
Financing Receivable, Recorded Investment, Current | 101,271 | 105,110 |
Loans and Leases Receivable, Net | 103,726 | 108,239 |
Acquired (non-covered) | Consumer and Other | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 57 | 108 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 5 | 1 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 23 | 24 |
Financing Receivable, Recorded Investment, Total Past Due | 85 | 133 |
Financing Receivable, Recorded Investment, Current | 3,578 | 3,713 |
Loans and Leases Receivable, Net | 3,663 | 3,846 |
Acquired (non-covered) | Financing Receivable | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 912 | 1,224 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 118 | 520 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 2,955 | 2,885 |
Financing Receivable, Recorded Investment, Total Past Due | 3,985 | 4,629 |
Financing Receivable, Recorded Investment, Current | 359,812 | 379,351 |
Loans and Leases Receivable, Net | 363,797 | 383,980 |
Acquired (covered) | Commercial Real Estate | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 1,464 | 1,145 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 138 | 848 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 7,767 | 8,086 |
Financing Receivable, Recorded Investment, Total Past Due | 9,369 | 10,079 |
Financing Receivable, Recorded Investment, Current | 80,520 | 86,373 |
Loans and Leases Receivable, Net | 89,889 | 96,452 |
Acquired (covered) | Commercial Construction | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 40 | 201 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 320 | 38 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 5,433 | 5,111 |
Financing Receivable, Recorded Investment, Total Past Due | 5,793 | 5,350 |
Financing Receivable, Recorded Investment, Current | 10,844 | 12,981 |
Loans and Leases Receivable, Net | 16,637 | 18,331 |
Acquired (covered) | Commercial and Industrial | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 34 | 0 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 47 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 247 | 640 |
Financing Receivable, Recorded Investment, Total Past Due | 281 | 687 |
Financing Receivable, Recorded Investment, Current | 4,582 | 5,232 |
Loans and Leases Receivable, Net | 4,863 | 5,919 |
Acquired (covered) | Residential Construction | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Financing Receivable, Recorded Investment, Total Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Current | 0 | 16 |
Loans and Leases Receivable, Net | 0 | 16 |
Acquired (covered) | Residential Mortgage | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 957 | 313 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 41 | 28 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 7,313 | 9,818 |
Financing Receivable, Recorded Investment, Total Past Due | 8,311 | 10,159 |
Financing Receivable, Recorded Investment, Current | 53,565 | 54,865 |
Loans and Leases Receivable, Net | 61,876 | 65,024 |
Acquired (covered) | Consumer and Other | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 0 | 8 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 0 | 2 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 43 | 90 |
Financing Receivable, Recorded Investment, Total Past Due | 43 | 100 |
Financing Receivable, Recorded Investment, Current | 1,722 | 1,819 |
Loans and Leases Receivable, Net | 1,765 | 1,919 |
Acquired (covered) | Financing Receivable | ' | ' |
Financing Receivable, Recorded Investment, Past Due [Line Items] | ' | ' |
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due | 2,495 | 1,667 |
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due | 499 | 963 |
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 20,803 | 23,745 |
Financing Receivable, Recorded Investment, Total Past Due | 23,797 | 26,375 |
Financing Receivable, Recorded Investment, Current | 151,233 | 161,286 |
Loans and Leases Receivable, Net | $175,030 | $187,661 |