Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill

Changes in goodwill during the nine months ended September 30, 2018 are as follows:

(In thousands)	Goodwill
Balance at January 1, 2018	$	422,185
Disposals	(525		)
Currency translation	(4,881		)
Balance at September 30, 2018	$	416,779

Changes in Intangible Assets, Net of Accumulated Amortization

Changes in intangible assets, net of accumulated amortization during the nine months ended September 30, 2018, are as follows:

(In thousands)	Intangible Assets
Net balance at January 1, 2018	$	183,088
Amortization expense	(7,916		)
Currency translation	(1,855		)
Net balance at September 30, 2018	$	173,317