Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Revenue from Contract with Customer Excludes Leasing

Revenues from contracts with customers (excludes leasing) consisted of the following:

	Three months ended September 30,
	Western Hemisphere				Eastern Hemisphere				Asia- Pacific				Total
	2021		2020		2021		2020		2021		2020		2021		2020
	(In thousands)
Product Revenues	$	37,612	$	36,095	$	10,217	$	13,377	$	5,793	$	16,979	$	53,622	$	66,451
Service Revenues		12,872		10,974		2,458		3,689		4,230		3,115		19,560		17,778
Total	$	50,484	$	47,069	$	12,675	$	17,066	$	10,023	$	20,094	$	73,182	$	84,229
	Nine months ended September 30,
	Western Hemisphere				Eastern Hemisphere				Asia- Pacific				Total
	2021		2020		2021		2020		2021		2020		2021		2020
	(In thousands)
Product Revenues	$	112,787	$	114,364	$	25,505	$	45,772	$	26,774	$	37,006	$	165,066	$	197,142
Service Revenues		33,813		35,094		7,748		11,620		13,202		10,628		54,763		57,342
Total	$	146,600	$	149,458	$	33,253	$	57,392	$	39,976	$	47,634	$	219,829	$	254,484

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, 2020	$	135,973
Additions		72,185
Transfers to Trade Receivables, Net		(97,722	)
Contract Assets at September 30, 2021	$	110,436

Contract Liabilities (amounts shown in thousands)

Contract Liabilities at December 31, 2020	$	10,815
Additions		21,160
Revenue Recognized		(26,627	)
Contract Liabilities at September 30, 2021	$	5,348