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Restatement of Condensed Consolidated Financial Statements - Condensed Consolidated Balance Sheets (Details 2) - $ / shares | Dec. 31, 2014 | Sep. 30, 2014 | Dec. 31, 2013
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Common Stock Class A Non-voting [Member] |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 | $ 0.01
Common stock, shares authorized | 100,000,000 | 100,000,000 | 56,000,000
Common stock, shares issued | 50,680,358 | 50,614,767 | 51,389,307
Common stock, shares outstanding | 50,680,358 | 50,614,767 | 51,389,307
Common Stock Class B Voting [Member] |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 | $ 0.01
Common stock, shares authorized | 3,000,000 | 3,000,000 | 3,000,000
Common stock, shares issued | 2,970,171 | 2,970,171 | 2,970,171
Common stock, shares outstanding | 2,970,171 | 2,970,171 | 2,970,171
As Previously Reported [Member] | Common Stock Class A Non-voting [Member] |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  |
Common stock, shares authorized | 100,000,000 |  |
Common stock, shares issued | 50,680,358 |  |
Common stock, shares outstanding | 50,680,358 |  |
As Previously Reported [Member] | Common Stock Class B Voting [Member] |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  |
Common stock, shares authorized | 3,000,000 |  |
Common stock, shares issued | 2,970,171 |  |
Common stock, shares outstanding | 2,970,171 |  |

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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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