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Concentration of Risk and Enterprise Wide Disclosures - Contract Revenues by Customer (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Revenue, Major Customer [Line Items] |  |  |  |
Revenues | $ 345,674 | $ 1,769,436 | $ 1,414,374 | $ 1,226,738
One Customer | Customer Concentration Risk | E-Infrastructure Solutions |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Revenues |  |  | 156,600 |
Contract receivable |  |  | $ 27,188 |
One Customer | Customer Concentration Risk | Contract Receivables | E-Infrastructure Solutions |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Concentration risk percentage |  |  | 14.00% |

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- Definition Amount billed to customers under long-term contracts or programs but not paid. Excludes amounts due that have been withheld because of retainage provisions in a contract. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126937589&loc=SL119991595-234733 + Details
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