XML 34 R43.htm IDEA: XBRL DOCUMENT v2.4.0.6
Pro Forma Results of Combined Company Operations (Detail) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Business Acquisition, Pro Forma Information [Line Items]        
Total Revenues $ 159,944 $ 173,688 $ 489,775 $ 512,762
Net Income $ 11,738 $ 8,281 $ 17,904 $ 15,523
Income per share        
Basic $ 0.30 $ 0.21 $ 0.47 $ 0.39
Diluted $ 0.29 $ 0.21 $ 0.45 $ 0.39