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Acquisitions - Schedule of Supplemental Pro Forma Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 29, 2017
Polaris Alpha |  |  |
Business Acquisition [Line Items] |  |  |
Pro forma Revenue |  | $ 3,713,804 | $ 3,361,626
Pro forma Net Income including noncontrolling interest |  | 225,861 | $ 58,356
OGSystems |  |  |
Business Acquisition [Line Items] |  |  |
Pro forma Revenue | $ 3,956,767 | 3,676,894 |
Pro forma Net Income including noncontrolling interest | 134,046 | 205,961 |
QRC Technologies |  |  |
Business Acquisition [Line Items] |  |  |
Pro forma Revenue | 3,976,361 | 3,596,920 |
Pro forma Net Income | $ 138,692 | $ 221,930 |

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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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