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Acquisitions And New Ventures Acquisition and New Ventures (Tables) | 6 Months Ended
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Jun. 30, 2013
Acquisitions and New Ventures [Abstract] |
Business Acquisition, Pro Forma Information [Table Text Block] | The pro forma results have been prepared for comparative purposes only and do not purport to be indicative of the results of operations that would have occurred had the merger with Riverwalk been consummated at the beginning of 2012.
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2012 |  | 2012
Net revenues | $ | 284,641 |  |  | $ | 437,546 |
Earnings from continuing operations | $ | 50,302 |  |  | $ | 54,188 |
Earnings from continuing operations per common share |  |  |
Basic: |  |  |
Earnings from continuing operations | $ | 2.92 |  |  | $ | 3.15 |
Diluted: |  |  |
Earnings from continuing operations | $ | 2.87 |  |  | $ | 3.11 |
Shares used in computing earnings from continuing operations per common share: |  |  |
Basic | 16,978 |  |  | 16,940 |
Diluted | 17,502 |  |  | 17,443 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 54 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 55 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph r(2, 3) -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 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 + Details
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