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Business Combinations Business Combinations (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 02, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 01, 2016 | May 06, 2016 | Mar. 11, 2016 | Dec. 31, 2015 | Feb. 13, 2015
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value |  | $ 80,690 |  |  | $ 80,690 |  |  |  | $ 80,690 |  | $ 154,496
Non-PCI Loans |  |  |  |  |  |  | $ 241,392 |  |  |  |
Gain on acquisition |  | 837 |  | $ 0 | 5,831 | $ 42,930 |  |  |  |  |
Merger-related expenses |  | 3,764 |  | $ 3,679 | 5,187 | $ 11,249 |  |  |  |  |
Goodwill |  | 150,601 |  |  | 150,601 |  |  |  |  | $ 139,773 |
North Milwaukee State Bank |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  |  |  | 4,545 |  |
Overnight investments |  |  |  |  |  |  |  |  | 2,274 |  |
Investment securities available for sale |  |  |  |  |  |  |  |  | 9,425 |  |
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value |  |  |  |  |  |  |  |  | 36,914 |  |
Intangible asset |  |  |  |  |  |  |  |  | 240 |  |
Other assets |  |  |  |  |  |  |  |  | 216 |  |
Total assets acquired |  |  |  |  |  |  |  |  | 53,614 |  |
Deposits |  |  |  |  |  |  |  |  | 59,206 |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments Related to Previous Period |  |  | $ 1,200 |  |  |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |  |  |  | 1,662 |  |
Other liabilities |  |  |  |  |  |  |  |  | 74 |  |
Total liabilities assumed |  |  |  |  |  |  |  |  | 60,942 |  |
Fair value of net assets (liabilities) assumed |  |  |  |  |  |  |  |  | (7,328) |  |
Cash received from FDIC |  |  |  |  |  |  |  |  | $ 10,200 |  |
Gain on acquisition |  |  |  |  | 2,872 |  |  |  |  |  |
Merger-related expenses |  | 35 |  |  | 511 |  |  |  |  |  |
Revenue generated |  | 699 |  |  | 1,498 |  |  |  |  |  |
First CornerStone Bank |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  |  | $ 748 |  |  |
Overnight investments |  |  |  |  |  |  |  | 37,540 |  |  |
Investment securities available for sale |  |  |  |  |  |  |  | 4,564 |  |  |
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value |  |  |  |  |  |  |  | 43,776 |  |  |
Other real estate owned |  |  |  |  |  |  |  | 375 |  |  |
Business Combination Assets and Liabilities Acquired Income Earned Not Collected |  |  |  |  |  |  |  | 8 |  |  |
Intangible asset |  |  |  |  |  |  |  | 390 |  |  |
Other assets |  |  |  |  |  |  |  | 13 |  |  |
Total assets acquired |  |  |  |  |  |  |  | 87,414 |  |  |
Deposits |  |  |  |  |  |  |  | 96,882 |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments Related to Previous Period |  | 837 |  |  |  |  |  |  |  |  |
Other liabilities |  |  |  |  |  |  |  | 23 |  |  |
Total liabilities assumed |  |  |  |  |  |  |  | 96,905 |  |  |
Fair value of net assets (liabilities) assumed |  |  |  |  |  |  |  | (9,491) |  |  |
Cash received from FDIC |  |  |  |  |  |  |  | $ 12,450 |  |  |
Gain on acquisition |  |  |  |  | 2,959 |  |  |  |  |  |
Merger-related expenses |  | 130 |  |  | 923 |  |  |  |  |  |
Revenue generated |  | 573 |  |  | 897 |  |  |  |  |  |
Cordia Bancorp Inc. |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Share Price |  |  |  |  |  |  | $ 5.15 |  |  |  |
Business Combination, Consideration Transferred | $ 37,053 |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  | $ 8,383 |  |  |  |
Overnight investments |  |  |  |  |  |  | 3,081 |  |  |  |
Investment securities available for sale |  |  |  |  |  |  | 76,633 |  |  |  |
Non-PCI Loans |  |  |  |  |  |  | 241,392 |  |  |  |
Premises and equipment |  |  |  |  |  |  | 4,151 |  |  |  |
Other real estate owned |  |  |  |  |  |  | 1,170 |  |  |  |
Business Combination Assets and Liabilities Acquired Income Earned Not Collected |  |  |  |  |  |  | 1,990 |  |  |  |
Intangible asset |  |  |  |  |  |  | 2,210 |  |  |  |
Other assets |  |  |  |  |  |  | 10,318 |  |  |  |
Total assets acquired |  |  |  |  |  |  | 349,328 |  |  |  |
Deposits |  |  |  |  |  |  | 292,192 |  |  |  |
Short-term borrowings |  |  |  |  |  |  | 30,164 |  |  |  |
Other liabilities |  |  |  |  |  |  | 747 |  |  |  |
Total liabilities assumed |  |  |  |  |  |  | 323,103 |  |  |  |
Fair value of net assets (liabilities) assumed |  |  |  |  |  |  | 26,225 |  |  |  |
Merger-related expenses |  | 3,599 |  |  | $ 3,753 |  |  |  |  |  |
Revenue generated |  | $ 1,032 |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  | $ 10,828 |  |  |  |

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- Definition In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6393-128476 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6527-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6571-128477 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6387-128476 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6396-128476 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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- Definition Amount of increase (decrease) in income that would have been recognized in previous periods if the adjustments to provisional amounts were recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 4A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=SL65897772-128472 + Details
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- Definition Amount of assets acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464 + Details
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