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Acquisitions - Schedule of Supplemental Pro Forma Information (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
OGSystems |  |
Business Acquisition [Line Items] |  |
Pro forma revenue | $ 970,993 | $ 906,360
Pro forma net income including noncontrolling interests | 14,846 | 17,458
QRC Technologies |  |
Business Acquisition [Line Items] |  |
Pro forma revenue | 970,993 | 910,997
Pro forma net income including noncontrolling interests | $ 15,736 | $ 10,845

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