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Construction Contracts (Tables) | 3 Months Ended
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Mar. 31, 2021
Contractors [Abstract] |
Summary of balances and changes of construction contracts | The following table summarizes the changes to the balances in the Company’s construction contract costs and estimated earnings in excess of billings account and the billings in excess of construction contract costs and estimated earnings account for the three months ended March 31, 2021 and 2020 (in thousands):
|  | Three Months Ended March 31, 2021 |  | Three Months Ended March 31, 2020
|  | Construction contract costs and estimated earnings in excess of billings |  | Billings in excess of construction contract costs and estimated earnings |  | Construction contract costs and estimated earnings in excess of billings |  | Billings in excess of construction contract costs and estimated earnings
Beginning balance |  | $ | 138 |  |  | $ | 6,088 |  |  | $ | 249 |  |  | $ | 5,306 |
Revenue recognized that was included in the balance at the beginning of the period |  | — |  |  | (6,088) |  |  | — |  |  | (5,306) |
Increases due to new billings, excluding amounts recognized as revenue during the period |  | — |  |  | 3,143 |  |  | — |  |  | 6,311 |
Transferred to receivables |  | (138) |  |  | — |  |  | (285) |  |  | — |
Construction contract costs and estimated earnings not billed during the period |  | 54 |  |  | — |  |  | 458 |  |  | — |
Changes due to cumulative catch-up adjustment arising from changes in the estimate of the stage of completion |  | — |  |  | (81) |  |  | 36 |  |  | — |
Ending balance |  | $ | 54 |  |  | $ | 3,062 |  |  | $ | 458 |  |  | $ | 6,311 |
The Company’s balances and changes in construction contract price allocated to unsatisfied performance obligations (backlog) as of March 31, 2021 and 2020 were as follows (in thousands):
|  | Three Months Ended March 31, |  |
|  | 2021 |  | 2020 |  |  |  |
Beginning backlog |  | $ | 71,258 |  |  | $ | 242,622 |  |  |  |  |
New contracts/change orders |  | 3,124 |  |  | 40,440 |  |  |  |  |
Work performed |  | (35,544) |  |  | (47,420) |  |  |  |  |
Ending backlog |  | $ | 38,838 |  |  | $ | 235,642 |  |  |  |  |
Net position of uncompleted construction contracts | The Company’s net position on uncompleted construction contracts comprised the following as of March 31, 2021 and December 31, 2020 (in thousands):
| March 31, 2021 |  | December 31, 2020
Costs incurred on uncompleted construction contracts | $ | 939,312 |  |  | $ | 905,037 |
Estimated earnings | 33,399 |  |  | 32,130 |
Billings | (975,719) |  |  | (943,117) |
Net position | $ | (3,008) |  |  | $ | (5,950) |
Construction contract costs and estimated earnings in excess of billings | $ | 54 |  |  | $ | 138 |
Billings in excess of construction contract costs and estimated earnings | (3,062) |  |  | (6,088) |
Net position | $ | (3,008) |  |  | $ | (5,950) |

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- Definition Net Position of Cost and Estimated Earning on Uncompleted Contracts Table [Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- References No definition available. + Details
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