XML 64 R49.htm IDEA: XBRL DOCUMENT v3.3.1.900
Business Acquisition Pro-forma Unaudited Financial Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Business Acquisition Pro Forma Information [Abstract]    
Revenue $ 3,302,492 $ 2,854,867
Net income $ 169,831 $ 196,600
Basic net income per common share $ 1.17 $ 1.35
Diluted net income per common share $ 1.16 $ 1.34