Revenue Revenue

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue

Note 2.    Revenue

Revenue Recognition

The Company designs, markets and sells products primarily as off-the-shelf products. Certain customers request different system configurations, based on standard options or accessories that the Company offers. Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company regularly enters into contracts that can include various combinations of products and services, which are generally capable of being distinct and accounted for as separate performance obligations. In such situations, contract values are allocated to each performance obligation based on its relative estimated standalone selling price. The vast majority of the Company's revenues are recognized at a point in time when goods are transferred to a customer. However, for certain contracts that include highly customized components, if performance does not create an asset with an alternative use and termination for convenience clauses provide an enforceable right to payment for performance completed to date, revenue is recognized over time as the performance obligation is satisfied.

Revenue includes certain shipping and handling costs and is stated net of third-party agency fees. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as fulfillment costs and are included in cost of goods sold. Revenue is recognized net of allowances for returns and net of taxes collected from customers which are subsequently remitted to governmental authorities.

Note 2.    Revenue - (Continued)

Revenue Recognition - (Continued)

The Company's products are sold with warranty provisions that require it to remedy deficiencies in quality or performance of the Company's products over a specified period of time, generally twelve to twenty-four months, at no cost to its customers. Warranty liabilities are established at the time that revenue is recognized at levels that represent the Company's estimate of the costs that will be incurred to fulfill those warranty requirements. Provisions for estimated losses on sales or related receivables are recorded when identified. Service revenue is deferred and recognized over the contract period, as is the case for extended warranty contracts, or recognized as services are provided. See Note 17, "Operating Segments and Related Information - Revenue and Long-Lived Assets by Geographic Area" for information related to the Company’s revenues disaggregated by significant geographical region and operating segment.

Contract Balances

The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables and deferred revenue and advance payments from customers on the Consolidated Balance Sheets. Contract assets and liabilities are reported on a contract-by-contract basis. The Company had no material deferred contract costs recorded on the Consolidated Balance Sheets as of March 31, 2021 and December 31, 2020.

Contract assets: The Company recognizes unbilled receivables as contract assets when the Company has rights to consideration for work completed but has not yet billed at the reporting date. Unbilled receivables are included within accounts receivable, net on the Consolidated Balance Sheets. The balance of unbilled receivables as of March 31, 2021 and December 31, 2020 were $75.4 million and $45.0 million, respectively.

Contract liabilities: The Company records contract liabilities when cash payments are received or due in advance of the Company's performance. Contract liabilities include deferred revenue and advance payments from customers. Contract liabilities are classified as either current or long-term in the Consolidated Balance Sheets based on the timing of when the Company expects to recognize revenue. As of March 31, 2021 and December 31, 2020, contract liability balances totaled $54.7 million and $48.8 million, respectively. These balances included amounts classified as long-term as of March 31, 2021 and December 31, 2020 which were $12.4 million and $12.0 million, respectively, and are included within other long-term liabilities in the accompanying Consolidated Balance Sheets. Approximately $11.5 million of revenue recognized during the three months ended March 31, 2021 was included in the combined contract liability balances as of December 31, 2020.

Remaining Performance Obligations

Remaining performance obligations represent the aggregate transaction price allocated to performance obligations with an original contract term greater than one year which are fully or partially unsatisfied at the end of the period. While the remaining performance obligation disclosure is similar in concept to backlog, the definition of remaining performance obligations excludes contracts that provide the customer with the right to cancel or terminate for convenience with no substantial penalty, even if historical experience indicates the likelihood of cancellation or termination is remote. The Company has elected to exclude contracts with customers with an original term of one year or less from remaining performance obligations while these contracts are included within backlog. As of March 31, 2021, the aggregate amount of the transaction price allocated to remaining performance obligations was approximately $300.0 million. The Company expects to recognize revenue on a majority of the remaining performance obligations over the next twelve months.