Goodwill (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of changes in goodwill

The summary of changes in goodwill is as follows.

	Title	Ancillary Services and Corporate	Consolidated Total
		($000 omitted)
Balances at December 31, 2016	211,365	5,729	217,094
Acquisitions	17,573	—	17,573
Balances at June 30, 2017	228,938	5,729	234,667