Revenue From Contracts With Customers (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables represent a disaggregation of revenue from contracts with customers for the years ended December 31, 2019 and 2018:

	Twelve Months Ended December 31,
	2019		2018
Sales by Application
Materials processing	$	1,229,211	$	1,374,448
Other applications	85,370		85,426
Total	$	1,314,581	$	1,459,874

	Twelve Months Ended December 31,
	2019		2018
Sales by Product
High Power Continuous Wave ("CW") Lasers	$	734,745	$	909,726
Medium and Low Power CW Lasers	56,625		95,764
Pulsed Lasers	137,675		162,048
Quasi-Continuous Wave ("QCW") Lasers	56,440		66,700
Laser and Non-Laser Systems	141,647		59,330
Other Revenue including Amplifiers, Service, Parts, Accessories and Change in Deferred Revenue	187,449		166,306
Total	$	1,314,581	$	1,459,874

Sales by Geography
North America	$	280,886	$	202,743
Europe:
Germany	81,365		111,259
Other including Eastern Europe/CIS	249,871		296,917
Asia and Australia:
China	491,890		629,079
Japan	71,757		87,619
Other	121,586		127,251
Rest of World	17,226		5,006
Total	$	1,314,581	$	1,459,874

Timing of Revenue Recognition
Goods and services transferred at a point in time	$	1,233,065	$	1,447,343
Goods and services transferred over time	81,516		12,531
Total	$	1,314,581	$	1,459,874

Changes in Contract Assets and Liabilities

The following table reflects the changes in the Company's contract assets and liabilities for the years ended December 31, 2019 and 2018:

	December 31,		December 31,				December 31,		January 1,
	2019		2018		Change		2018		2018		Change
Contract assets
Contract assets	$	9,645	$	10,102	$	(457)	$	10,102	$	—	$	10,102
Contract liabilities
Contract liabilities - current	59,531		52,606		6,925		52,606		46,508		6,098
Contract liabilities - long-term	1,820		1,413		407		1,413		182		1,231

Schedule of Remaining Performance Obligations

The following table represents the Company's remaining performance obligations from contracts that are recognized over time as of December 31, 2019:

	Remaining Performance Obligations
	2020		2021		2022		2023		2024		2025		Total
Revenue expected to be recognized for extended warranty agreements	$	4,105	$	914	$	498	$	301	$	87	$	18	$	5,923
Revenue to be earned over time from contracts to sell robotic systems	28,170		1,325		—		—		—		—		29,495
Total	$	32,275	$	2,239	$	498	$	301	$	87	$	18	$	35,418