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Inventory | 9 Months Ended
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Sep. 30, 2021
Inventory Disclosure [Abstract] |
Inventory | Inventory Inventories as of September 30, 2021 and December 31, 2020 are summarized in the following table:
|  | September 30, 2021 |  | December 31, 2020
Finished goods |  | $ | 29,597 |  |  | $ | 60,766 |
Contract assets |  | 41,164 |  |  | 37,843 |
Work-in-process |  | 9,767 |  |  | 5,143 |
Raw materials |  | 28,367 |  |  | 12,708 |
Inventories - net |  | $ | 108,895 |  |  | $ | 116,460 |
Inventories of the Company are valued at average cost or net realizable value, whichever is lower. Contract assets consist of costs and earnings in excess of billings, retainage, and other unbilled amounts generated when revenue recognized exceeds the amount billed to the customer. The Company records appropriate provisions related to the allowance for credit losses associated with contract assets, as these assets held in inventory will convert to trade receivables once the customer is billed under the contract to which they pertain. Provisions are recorded based on the specific review of individual contracts as necessary, and a standard provision is recorded over any remaining contract assets pooled together based on similar risk of credit loss. The development of these provisions are based on historic collection trends, accuracy of estimates within contract margin reporting, as well as the expectation that collection patterns, margin reporting, and bad debt expense will continue to adhere to patterns observed in recent years. These expectations were formed based on trends observed as well as current and expected future conditions. On September 24, 2021, the Company executed the sale of its Piling Products division for $23,902 in total expected proceeds. The sale included substantially all inventory held by the Company associated with the division. The Piling Products division is included in the Fabricated Steel business unit within the Infrastructure Solutions business segment.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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