Goodwill and Other Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill by Operating Segment

A summary of changes in the carrying amount of goodwill by operating segment for the years ended December 31, 2018 and 2017 were as follows (in thousands):

	Financial Services			Benefits and Insurance Services		National Practices		Total Goodwill
December 31, 2016	$	271,330		$	214,488	$	1,666	$	487,484
Additions		35,531			5,409		—		40,940
December 31, 2017	$	306,861		$	219,897	$	1,666	$	528,424
Additions		22,978			13,111		—		36,089
Divestitures		(213	)		—		—		(213	)
December 31, 2018	$	329,626		$	233,008	$	1,666	$	564,300

Components of Goodwill and Other Intangible Assets, Net

The components of goodwill and other intangible assets, net at December 31, 2018 and 2017 were as follows (in thousands):

	2018			2017
Goodwill	$	564,300		$	528,424
Intangibles :
Client lists		181,564			177,221
Other intangibles		9,447			8,767
Total intangibles		191,011			185,988
Total goodwill and other intangibles assets		755,311			714,412
Accumulated amortization:
Client lists		(112,905	)		(97,063	)
Other intangibles		(5,397	)		(4,143	)
Total accumulated amortization		(118,302	)		(101,206	)
Goodwill and other intangible assets, net	$	637,009		$	613,206