The Company invoices its customers in accordance with billing schedules established in each contract. The Company’s rights to consideration from customers are presented separately in the Company’s Consolidated Balance Sheets depending on whether those rights are conditional or unconditional.

The Company presents unconditional rights to consideration from customers within “Accounts receivable, net” in its Consolidated Balance Sheets. All of the Company’s contracts are generally non-cancellable and/or non-refundable, and therefore an unconditional right generally exists when the customer is billed or amounts are billable per the contract.

Accounts receivable (in thousands) consisted of the following, as of:


	March 31,			December 31,
	2023			2022
Billed and billable	$	141,702		$	191,844
Less: allowance for credit losses		(2,524	)		(2,564	)
Accounts receivable, net	$	139,178		$	189,280

Changes in the allowance for credit losses were not material for the three months ended March 31, 2023.

Rights to consideration that are subject to a condition other than the passage of time are considered contract assets until they are expected to become unconditional and transfer to accounts receivable. Current contract assets included in “Prepaid expenses and other current assets” in the Consolidated Balance Sheets consist of $1.0 million and $0.6 million, as of March 31, 2023 and December 31, 2022, respectively, related to accrued sales and usage-based royalty revenue and performance obligations or services being rendered in advance of future invoicing associated with multi-year contracts. In royalty-based arrangements, consideration is not billed or billable until the royalty reporting is received, generally in the subsequent quarter, at which time the contract asset transfers to accounts receivable and a true-up adjustment is recorded to revenue. These true-up adjustments are generally not material. Non-current contract assets included in “Deposits and other assets” in the Consolidated Balance Sheets consisted of $1.3 million and $0.7 million, as of March 31, 2023 and December 31, 2022, respectively, related to performance obligations or services being rendered in advance of future invoicing associated with multi-year contracts. During the three months ended March 31, 2023 and 2022, there were no significant impairments to the Company’s contract assets, nor were there any significant changes in the timing of the Company’s contract assets being reclassified to accounts receivable.

Contract liabilities are amounts received or due from customers in advance of the Company transferring the software or services to the customer. In the case of multi-year service contract arrangements, the Company generally does not invoice more than one year in advance of services and does not record deferred revenue for amounts that have not been invoiced. Revenue is subsequently recognized in the period(s) in which control of the software or services is transferred to the customer. The Company’s contract liabilities are presented as either current or non-current “Deferred revenue and advance payments” in the Consolidated Balance Sheets, depending on whether the software or services are expected to be transferred to the customer within the next year.

The Company’s “Accounts receivable, net” and “Deferred revenue and advance payments” balances in the Consolidated Balance Sheets include unpaid amounts related to contracts under which the Company has an enforceable right to invoice the customer for non-cancellable and/or non-refundable software and services. Changes in accounts receivable and changes in deferred revenue and advance payments are presented net of these unpaid amounts in “Operating activities” in the Consolidated Statements of Cash Flows.

Deferred revenue and advance payments (in thousands) from customers consisted of the following, as of:


	March 31,		December 31,
	2023		2022
Current:
Deferred product licenses revenue	$	479	$	2,825
Deferred subscription services revenue		46,719		51,861
Deferred product support revenue		159,792		155,366
Deferred other services revenue		4,778		7,376
Total current deferred revenue and advance payments	$	211,768	$	217,428

Non-current:
Deferred product licenses revenue	$	2,710	$	2,742
Deferred subscription services revenue		2,671		3,030
Deferred product support revenue		5,712		6,387
Deferred other services revenue		553		604
Total non-current deferred revenue and advance payments	$	11,646	$	12,763

During the three months ended March 31, 2023, the Company recognized revenues of $80.7 million from amounts included in the total deferred revenue and advance payments balances at the beginning of 2023. During the three months ended March 31, 2022, the Company recognized revenues of $74.9 million from amounts included in the total deferred revenue and advance payments balances at the beginning of 2022. For the three months ended March 31, 2023 and 2022, there were no significant changes in the timing of revenue recognition on the Company’s deferred balances.

The Company’s remaining performance obligation represents all future revenue under contract and includes deferred revenue and advance payments and billable non-cancelable amounts that will be invoiced and recognized as revenue in future periods. The remaining performance obligation excludes contracts that are billed in arrears, such as certain time and materials contracts. The portions of multi-year contracts that will be invoiced in the future are not presented on the balance sheet within accounts receivable and deferred revenues and are instead included in the following remaining performance obligation disclosure. As of March 31, 2023, the Company had an aggregate transaction price of $316.8 million allocated to the remaining performance obligation related to product support, subscription services, product licenses, and other services contracts. The Company expects to recognize $243.3 million within the next 12 months and the remainder thereafter.