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Loans and Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011
Impaired loans segregated by class of loans |  |
Unpaid Principal Balance | $ 52,067 | $ 24,220
Recorded Investment with Allowance | 47,579 | 22,469
Related Allowance | 4,454 | 3,188
Average Recorded Investment | 50,266 | 24,403
Non-residential real estate [Member] |  |
Impaired loans segregated by class of loans |  |
Unpaid Principal Balance | 28,184 | 9,723
Recorded Investment with Allowance | 27,165 | 9,235
Related Allowance | 2,122 | 978
Average Recorded Investment | 27,397 | 10,223
Residential real estate [Member] |  |
Impaired loans segregated by class of loans |  |
Unpaid Principal Balance | 5,839 | 6,466
Recorded Investment with Allowance | 5,384 | 5,860
Related Allowance | 1,468 | 1,520
Average Recorded Investment | 5,547 | 6,511
Non-consumer non-real estate [Member] |  |
Impaired loans segregated by class of loans |  |
Unpaid Principal Balance | 1,792 | 1,873
Recorded Investment with Allowance | 1,163 | 1,547
Related Allowance | 302 | 358
Average Recorded Investment | 1,512 | 1,806
Consumer non-real estate [Member] |  |
Impaired loans segregated by class of loans |  |
Unpaid Principal Balance | 349 | 211
Recorded Investment with Allowance | 325 | 178
Related Allowance | 59 | 47
Average Recorded Investment | 389 | 212
Other loans [Member] |  |
Impaired loans segregated by class of loans |  |
Unpaid Principal Balance | 2,255 | 4,418
Recorded Investment with Allowance | 2,020 | 4,285
Related Allowance | 212 | 193
Average Recorded Investment | 2,158 | 4,312
Acquired loans [Member] |  |
Impaired loans segregated by class of loans |  |
Unpaid Principal Balance | 13,648 | 1,529
Recorded Investment with Allowance | 11,522 | 1,364
Related Allowance | 291 | 92
Average Recorded Investment | $ 13,263 | $ 1,339

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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=7512638&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=7512638&loc=d3e5258-111524 + 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=7512638&loc=SL6953550-111524 + Details
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