XML 34 R35.htm IDEA: XBRL DOCUMENT v2.4.0.8
Goodwill - Changes in Carrying Value of Goodwill by Operating Segment (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Goodwill [Line Items]  
Beginning balance $ 2,006,173
Goodwill of acquired businesses 503,107
Ending balance 2,509,280
Retail [Member]
 
Goodwill [Line Items]  
Beginning balance 1,131,257
Goodwill of acquired businesses 78,395
Ending balance 1,209,652
National Programs [Member]
 
Goodwill [Line Items]  
Beginning balance 467,144
Goodwill of acquired businesses 417,539
Ending balance 884,683
Wholesale Brokerage [Member]
 
Goodwill [Line Items]  
Beginning balance 287,242
Goodwill of acquired businesses 7,412
Ending balance 294,654
Services [Member]
 
Goodwill [Line Items]  
Beginning balance 120,530
Goodwill of acquired businesses (239)
Ending balance $ 120,291