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Earnings Per Share - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended
	Mar. 22, 2013	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share Basic And Dilutive [Line Items]
Anti-dilutive convertible preferred stock	7,942	407,297	816,342
Preferred convertible securities conversion price		$ 2.75
Preferred convertible securities market value per share		$ 3.60
Convertible Preferred Stock [Member]
Earnings Per Share Basic And Dilutive [Line Items]
Anti-dilutive convertible preferred stock			7,942

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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