Quarterly report pursuant to Section 13 or 15(d)

Repurchase of Common Stock - Additional Information (Detail)

v2.4.0.8
Repurchase of Common Stock - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 9 Months Ended
Jun. 30, 2013
Sep. 30, 2013
Sep. 30, 2013
Equity Class Of Treasury Stock [Line Items]      
Common stock authorized to be repurchased over the next 12 months $ 25,000,000    
Shares repurchased   1,531,770 1,765,170
Average price per share   $ 6.10 $ 6.05
Common stock repurchased, value   $ 9,300,000 $ 10,680,000