Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Summary of Allowance for Credit Losses by Asset Type

The allowance for credit losses is presented in the Consolidated Balance Sheets as a deduction from the respective asset balance. The following table summarizes the Company’s allowance for credit losses by asset type:

	December 31,
	2020		2019
	(In thousands)
Allowance for credit losses:
Accounts receivable and unbilled receivables	$	4,286	$	3,227
Long-term unbilled receivables (1)	30		—
Net investment in sales-type leases (2)	265		225

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

(2)    Includes both current and long-term portions presented in other current assets and long-term investment in sales-type leases, net, respectively.

Estimated Useful Lives of Assets

Depreciation and amortization is computed by use of the straight-line method over the estimated useful lives of the assets as stated below:

Computer equipment and related software	3 - 5 years
Leasehold and building improvements	Shorter of the lease term or the estimated useful life
Furniture and fixtures	5 - 7 years
Equipment	2 - 12 years

The following table represents the property and equipment balances as of December 31, 2020 and 2019:

	December 31,
	2020		2019
	(In thousands)
Equipment	$	81,034	$	88,569
Furniture and fixtures	7,498		7,925
Leasehold improvements	19,517		18,979
Software	50,230		48,309
Construction in progress	7,095		6,179
Property and equipment, gross (1)	165,374		169,961
Accumulated depreciation and amortization (1)	(106,301)		(115,715)
Total property and equipment, net	$	59,073	$	54,246

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(1)     The change in balances between periods is primarily due to the disposal of certain fully depreciated property and equipment, partially offset by additions, and depreciation and amortization.

The following table summarizes the geographic information for property and equipment, net, as of December 31, 2020 and 2019:

	December 31,
	2020		2019
	(In thousands)
United States	$	53,203	$	48,769
Rest of world (1)	5,870		5,477
Total property and equipment, net	$	59,073	$	54,246

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(1)    No individual country represented more than 10% of the total property and equipment, net.

Summary of Revenue Recognition for Revenue Category

The following table summarizes revenue recognition for each revenue category which is further discussed below:

Revenue Category	Timing of Revenue Recognition	Income Statement Classification
Connected devices, software licenses, and other	Point in time, as transfer of control occurs, generally upon installation and acceptance by the customer	Product
Technical services	Over time, as services are provided, typically ratably over the service term	Service
Consumables	Point in time, as transfer of control occurs, generally upon shipment to or receipt by customer	Product
SaaS, subscription software, and technology-enabled services	Over time, as services are provided	Service