Revenue Recognition (Adoption of ASC 606) (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of Revenue from Contract with Customer

Revenues from contracts with customers consisted of the following:

	Twelve months ended
	December 31, 2018
	Western Hemisphere		Eastern Hemisphere		Asia-Pacific		Intercompany		Total
	(In thousands)
Product Revenues	$	170,282	$	71,719	$	23,051	$	—	$	265,052
Service Revenues	40,958		19,687		11,769		—		72,414
Total	$	211,240	$	91,406	$	34,820	$	—	$	337,466

Schedule of Contract Asset and Liability

Balances related to contracts with customers consisted of the following:

Contract Assets (amounts shown in thousands)

Contract Assets at December 31, 2017	$	41,825
Additions	63,379
Transfers to Accounts Receivable	(22,016		)
Contract Assets at December 31, 2018	$	83,188

Contract Liabilities (amounts shown in thousands)

Contract Liabilities at December 31, 2017	$	4,767
Additions	114,236
Revenue Recognized	(109,355		)
Contract Liabilities at December 31, 2018	$	9,648