v2.4.0.8
Business Acquisition Acquiree operating results to date since acquisition (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Business Acquisition [Line Items]        
Revenues $ 94,039 $ 84,331 $ 274,835 $ 223,858
Net income $ 7,755 $ 6,920 $ 17,156 $ 10,646