v3.5.0.2
Document and Entity Information
9 Months Ended
Sep. 30, 2016
shares
Document And Entity Information [Abstract]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Sep. 30, 2016
Document Fiscal Year Focus 2016
Document Fiscal Period Focus Q3
Trading Symbol BRO
Entity Registrant Name BROWN & BROWN INC
Entity Central Index Key 0000079282
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 140,209,157