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Condensed Financial Information of First Commonwealth Financial Corporation (parent company only) - Statements of Cash Flow (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Operating Activities |  |  |
Net Income | $ 41,954 | $ 15,274 | $ 22,978
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 7,912 | 9,026 | 10,707
Other net | 614 | 5,927 | 12,077
Net cash provided by operating activities | 78,724 | 84,119 | 110,870
Investing Activities |  |  |
Net change in loans to affiliated parties | (178,321) | 56,181 | 335,165
Purchases of premises and equipment | (10,182) | (8,320) | (4,886)
Proceeds from sale of other assets | 17,660 | 23,756 | 8,778
Net cash (used in) provided by investing activities | (171,382) | (79,957) | 542,632
Financing Activities |  |  |
Proceeds from issuance of common stock | 0 | 144 | 83,913
Discount on dividend reinvestment plan purchases | (92) | (63) | (33)
Dividends paid | (18,759) | (12,558) | (5,306)
Proceeds from reissuance of treasury stock | 1,028 | 72 | 4,248
Purchase of treasury stock | (36,242) | (9) | (9)
Stock option tax benefit | 1 | 6 | 0
Net cash provided by (used in) financing activities | 117,162 | 4,458 | (673,203)
Net increase (decrease) in cash | 24,504 | 8,620 | (19,701)
Cash and cash equivalents at January 1 | 78,478 | 69,858 | 89,559
Cash and cash equivalents at December 31 | 102,982 | 78,478 | 69,858
Parent [Member] |  |  |
Operating Activities |  |  |
Net Income | 41,954 | 15,274 | 22,978
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 3,719 | 3,730 | 3,658
Net gain on sales of assets | (107) | (1,069) | (3)
(Increase) decrease in prepaid income taxes | (3,044) | 0 | 23
Undistributed equity in subsidiaries | 14,562 | (17,401) | (32,652)
Other net | 8,789 | 1,649 | 9,029
Net cash provided by operating activities | 65,873 | 2,183 | 3,033
Investing Activities |  |  |
Net change in loans to affiliated parties | 4 | 5 | 7
Purchases of premises and equipment | (3,005) | (5,736) | (3,026)
Proceeds from sale of other assets | 4,309 | 1,461 | 15
Additional investment in subsidiary | 0 | 0 | (70,000)
Net cash (used in) provided by investing activities | 1,308 | (4,270) | (73,004)
Financing Activities |  |  |
Proceeds from issuance of common stock | 0 | 144 | 83,913
Discount on dividend reinvestment plan purchases | (92) | (63) | (33)
Dividends paid | (18,759) | (12,558) | (5,306)
Proceeds from reissuance of treasury stock | 1,028 | 72 | 4,248
Purchase of treasury stock | (36,242) | (9) | (9)
Stock option tax benefit | 1 | 6 | 0
Net cash provided by (used in) financing activities | (54,064) | (12,408) | 82,813
Net increase (decrease) in cash | 13,117 | (14,495) | 12,842
Cash and cash equivalents at January 1 | 6,376 | 20,871 | 8,029
Cash and cash equivalents at December 31 | $ 19,493 | $ 6,376 | $ 20,871

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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the sale of other tangible or intangible assets used to produce goods or deliver services not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the issuance of an equity stock that has been previously reacquired by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585 + Details
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