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Earnings Per Share - Additional Information (Detail)	1 Months Ended	12 Months Ended
Earnings Per Share - Additional Information (Detail)	Nov. 30, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]
Stock options not considered in computing diluted earnings per share		295,627	330,568	616,382
Stock dividend paid	10.00%

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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