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Subsequent Events - Additional Information (Detail) (Dividend Declared [Member], USD $)
3 Months Ended
Mar. 31, 2014
Apr. 29, 2014
Subsequent Event [Member]
Subsequent Event [Line Items]    
Cash dividend per share   $ 0.12
Date of payment to shareholders entitled to dividends Jun. 26, 2014  
Date of record of shareholders entitled to dividends Jun. 12, 2014