Goodwill (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

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

	Carrying Value									Carrying Value
	January 1, 2017		Acquisitions		Foreign Currency Translation		Purchase Price Adjustments			December 31, 2017
	(In thousands)
Western Hemisphere	$	26,632	$	12,788	$	587	$	(849	)	$	39,158
Eastern Hemisphere	7,739		—		727		—			8,466
Asia Pacific	—		—		—		—			—
Total	$	34,371	$	12,788	$	1,314	$	(849	)	$	47,624