Revenues

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenues

The following table summarizes the Company’s product revenues disaggregated by revenue type for the years ended December 31, 2019, 2018, and 2017:


	Year Ended December 31,
	2019		2018		2017

	(In thousands)
Hardware and software	$	553,039	$	464,500	$	406,095
Consumables	88,876		89,529		88,100
Other	17,687		15,566		16,006
Total product revenues	$	659,602	$	569,595	$	510,201

The following table summarizes the Company’s revenues disaggregated by geographic region, which is determined based on customer location, for the years ended December 31, 2019, 2018, and 2017:


	Year Ended December 31,
	2019		2018		2017

	(In thousands)
United States	$	806,900	$	685,881	$	613,817

Rest of world ⁽¹⁾	90,127		101,428		98,897

Total revenues	$	897,027	$	787,309	$	712,714

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⁽¹⁾No individual country represented more than 10% of total revenues.

Contract Assets and Contract Liabilities

The following table reflects the Company’s contract assets and contract liabilities:


	December 31,
	2019		2018

	(In thousands)
Short-term unbilled receivables ⁽¹⁾	$	11,707	$	9,191
Long-term unbilled receivables ⁽²⁾	12,260		16,481
Total contract assets	$	23,967	$	25,672

Short-term deferred revenues, net	$	90,894	$	81,835
Long-term deferred revenues	7,083		10,582
Total contract liabilities	$	97,977	$	92,417

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⁽¹⁾Included in accounts receivable and unbilled receivables in the Consolidated Balance Sheets.

⁽²⁾ Included in other long-term assets in the Consolidated Balance Sheets.

Short-term deferred revenues of $90.9 million and $81.8 million include deferred revenues from product sales and service contracts, net of deferred cost of sales of $13.1 million and $11.1 million, as of December 31, 2019 and 2018, respectively. The short-term deferred revenues from product sales relate to delivered and invoiced products, pending installation and acceptance, expected to occur within the next twelve months. During the year ended December 31, 2019, the Company recognized revenues of $80.4 million that were included in the corresponding gross short-term deferred revenue balance of $92.9 million as of December 31, 2018.

Long-term deferred revenues include deferred revenues from service contracts of $7.1 million and $10.6 million as of December 31, 2019 and 2018, respectively. Remaining performance obligations primarily relate to maintenance contracts and are recognized ratably over the remaining term of the contract, generally not more than five years.

Significant Customers

There were no customers that accounted for more than 10% of the Company’s total revenues for the years ended December 31, 2019, 2018, and 2017. Also, there were no customers that accounted for more than 10% of the Company’s accounts receivable balance as of December 31, 2019 and 2018.