Revenue Recognition (Tables)

6 Months Ended

Jun. 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 June 30,
	Western Hemisphere				Eastern Hemisphere				Asia- Pacific				Total
	2021		2020		2021		2020		2021		2020		2021		2020
	(In thousands)
Product Revenues	$	37,259	$	36,797	$	8,565	$	14,216	$	10,036	$	12,120	$	55,860	$	63,133
Service Revenues		10,438		13,164		2,571		3,593		4,527		3,993		17,536		20,750
Total	$	47,697	$	49,961	$	11,136	$	17,809	$	14,563	$	16,113	$	73,396	$	83,883
	Six months ended June 30,
	Western Hemisphere				Eastern Hemisphere				Asia- Pacific				Total
	2021		2020		2021		2020		2021		2020		2021		2020
	(In thousands)
Product Revenues	$	75,175	$	78,269	$	15,287	$	32,395	$	20,981	$	20,027	$	111,443	$	130,691
Service Revenues		20,942		24,120		5,290		7,931		8,971		7,513		35,203		39,564
Total	$	96,117	$	102,389	$	20,577	$	40,326	$	29,952	$	27,540	$	146,646	$	170,255

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		46,990
Transfers to Trade Receivables, Net		(41,930	)
Contract Assets at June 30, 2021	$	141,033

Contract Liabilities (amounts shown in thousands)

Contract Liabilities at December 31, 2020	$	10,815
Additions		21,618
Revenue Recognized		(19,058	)
Contract Liabilities at June 30, 2021	$	13,375