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Construction Joint Ventures - Construction Joint Ventures, Partner Share (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Schedule of Equity Method Investments [Line Items] |  |
Current assets | $ 371,088 | $ 357,521
Current liabilities | 286,332 | 293,504
Sterling’s receivables from and equity in noncontrolling construction joint ventures | 10,789 | 9,196
Joint Ventures |  |
Schedule of Equity Method Investments [Line Items] |  |
Current assets | 60,517 | 92,710
Current liabilities | 77,164 | 86,705
Sterling’s receivables from and equity in noncontrolling construction joint ventures | $ 10,789 | $ 9,196

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