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v3.19.3

Segment Information - Additional Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 28, 2018 USD ($) | Sep. 30, 2019 USD ($) segment | Sep. 28, 2018 USD ($) | Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Number of reportable segments | segment |  |  | 2 |  |
Revenues | $ 1,023,277 | $ 976,157 | $ 2,917,424 | $ 2,631,568 |
Property and equipment, net | 109,238 |  | 109,238 |  | $ 91,849
Reversal of accrued liability | 0 |  | 0 | 129,674 |
Critical Infrastructure |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 537,102 | 532,432 | 1,529,940 | 1,555,443 |
Revenue Excluding Claim Settlement |  |  |  | 1,500,000 |
Critical Infrastructure | Mobility Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 286,199 | 300,523 | 836,779 | 894,796 |
Revenue Excluding Claim Settlement |  |  |  | 839,700 |
Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Reversal of accrued liability |  |  |  | 55,100 |
Revenue | Critical Infrastructure | Mobility Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Reversal of accrued liability |  | 55,100 |  | 55,100 |
United States |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 774,200 | $ 747,700 | 2,200 | $ 2,000 |
Property and equipment, net | $ 97,300 |  | $ 97,300 |  | $ 79,900

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