Goodwill (Tables)

3 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by reporting unit during the three months ended March 31, 2017 were as follows:

	Carrying Value				Carrying Value
	December 31, 2016		Acquisitions(1)		March 31, 2017
	(In thousands)
Western Hemisphere	$	26,632	$	12,143	$	38,775
Eastern Hemisphere	7,739		—		7,739
Asia-Pacific	—		—		—
Total	$	34,371	$	12,143	$	46,514

(1) Primarily relates to goodwill additions as a result of the OPT acquisition.