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Goodwill (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill

The following table presents changes in goodwill in the accompanying Consolidated Balance Sheet for the years ended December 31, 2017 and 2018 (in thousands):

	December 31, 2017				December 31, 2018
Goodwill at the beginning of year	$	275,487			$	287,956
Increase in goodwill related to acquisitions	12,469				16,777
Decrease in goodwill related to impairments	—				(846		)
Goodwill at the end of the year	$	287,956			$	303,887

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- References

No definition available.

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- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267

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