Quarterly report pursuant to sections 13 or 15(d)

Acquisitions - Summary of Pro Forma Information (Detail)

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Acquisitions - Summary of Pro Forma Information (Detail) (Ten-Sixty [Member], USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Ten-Sixty [Member]
   
Business Acquisition [Line Items]    
Total Revenue $ 28,385 $ 25,128
Net Income $ 10,981 $ 9,469