Goodwill (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by reporting unit during the six months ended June 30, 2017 were as follows:

	Carrying Value						Carrying Value
	December 31, 2016		Acquisitions(1)		Foreign Currency Translation Adjustment		June 30, 2017
	(In thousands)
Western Hemisphere	$	26,632	$	12,788	$	312	$	39,732
Eastern Hemisphere	7,739		—		411		8,150
Asia-Pacific	—		—		—		—
Total	$	34,371	$	12,788	$	723	$	47,882

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