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Stockholders' Equity - Class B Common Stock (Detail)
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1 Months Ended | 3 Months Ended | |
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Feb. 28, 2014
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Mar. 31, 2014
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Dec. 31, 2012
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| Class Of Stock [Line Items] | |||
| Balance, Shares | |||
| Balance, Shares | |||
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Class B Common Stock
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| Class Of Stock [Line Items] | |||
| Balance, Shares | 4,464,617 | ||
| Common stock repurchased and cancelled | (16,530) | (16,530) | |
| Common stock issued upon vesting of deferred equity units | 261,958 | 261,958 | |
| Balance, Shares | 4,710,045 | ||
| Stock repurchased and cancelled , transaction date | Feb. 01, 2014 | ||
| Stock issued upon vesting of deferred equity units, transaction date | Feb. 01, 2014 |
| X | ||||||||||
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- Definition
Stock repurchased and cancelled during period shares. No definition available.
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| X | ||||||||||
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- Definition
Stock repurchased and cancelled transaction date. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Date the subsidiary or equity investee issued or sold stock, in CCYY-MM-DD format. No definition available.
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| X | ||||||||||
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- Definition
Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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