Goodwill (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill by Operating Segment

six months ended June 30, 2017 are as follows:

(in thousands)	Retail		National Programs		Wholesale Brokerage		Services		Total
Balance as of January 1, 2017	$	1,354,667	$	901,294	$	284,869	$	134,572	$	2,675,402
Goodwill of acquired businesses	7,929		7,314		770		689		16,702
Balance as of June 30, 2017	$	1,362,596	$	908,608	$	285,639	$	135,261	$	2,692,104