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ACQUISITIONS OF BUSINESSES - Unaudited Proforma Net Revenue and Net Income from Continuing Operations (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2013 | Jun. 30, 2013
ACQUISITIONS OF BUSINESSES [Abstract] |  |
Net revenues | $ 69,563 | $ 135,024
Net income attributable to common shareholders from continuing operations | $ 5,717 | $ 9,750
Earnings per share [Abstract] |  |
Basic - net income attributable to common shareholders from continuing operations (in dollars per share) | $ 0.47 | $ 0.81
Diluted - net income attributable to common shareholders from continuing operations (in dollars per share) | $ 0.47 | $ 0.81
Shares used in computation [Abstract] |  |
Basic - net income attributable to common shareholders from continuing operations (in shares) | 12,089 | 12,022
Diluted - net income attributable to common shareholders from continuing operations (in shares) | 12,110 | 12,044

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- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a 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)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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