Goodwill (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill by Operating Segment

The changes in the carrying value of goodwill by reportable segment for the six months ended June 30, 2015 are as follows:

(in thousands)	Retail		National Programs			Wholesale Brokerage		Services		Total
Balance as of January 1, 2015	$	1,231,869	$	886,095		$	222,356	$	120,291	$	2,460,611
Goodwill of acquired businesses	80,533		18,009			2,967		—		101,509
Goodwill disposed of relating to sales of businesses	—		(2,238		)	—		—		(2,238		)
Balance as of June 30, 2015	$	1,312,402	$	901,866		$	225,323	$	120,291	$	2,559,882