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Organization and Business - Schedule of Basic and Diluted Earnings per Share (Parenthetical) (Detail)
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12 Months Ended | 6 Months Ended | |
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Dec. 31, 2012
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Dec. 31, 2011
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Jun. 30, 2013
Class B Common Stock
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| Diluted weighted average units outstanding, contingently issuable units | 146,452 | 0 | 228,549 |
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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