Revenue

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Revenue

REVENUE

Sales includes revenue from contracts with customers for designing, engineering, manufacturing and installation of solar racking systems; electrical balance of systems; roof and foundation ventilation products; centralized mail systems and electronic package solutions; retractable awnings; gutter guards; rain dispersion products; trims and flashings and other accessories; designing, engineering, manufacturing and installation of greenhouses; botanical extraction systems; structural bearings; expansion joints; pavement sealant; elastomeric concrete; and bridge cable protection systems.

Refer to Note 14 "Segment Information" for additional information related to revenue recognized by timing of transfer of control by reportable segment.

As of March 31, 2022, the Company's remaining performance obligations are part of contracts that have an original expected duration of one year or less.

Contract assets consist of costs in excess of billings presented within accounts receivable in the Company's consolidated balance sheets. Contract liabilities consist of billings in excess of cost, classified as current liabilities, and unearned revenue, presented within accrued expenses, in the Company's consolidated balance sheets. Unearned revenue as of March 31, 2022 and December 31, 2021 was $2.4 million and $3.7 million, respectively. Revenue recognized during the three months ended March 31, 2022 and 2021 that was in contract liabilities at the beginning of the respective periods was $27.4 million and $40.7 million, respectively.