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Business Segments and Geographic Information - Additional Information (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 USD ($) Segment | Mar. 31, 2019 USD ($) | Dec. 31, 2019 USD ($)
Schedule Of Equity Method Investments [Line Items] |  |  |
Number of reportable business segments | Segment | 4 |  |
Equity in earnings (losses) of affiliates, net of income tax provision | $ 2,260 | $ 2,596 |
SACS |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Ownership percentage in entity | 50.00% |  |
Equity in earnings (losses) of affiliates, net of income tax provision | $ 1,000 | 1,400 |
Investment in joint venture | 8,900 |  | $ 12,300
GEO Amey |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Equity in earnings (losses) of affiliates, net of income tax provision | 1,200 | $ 1,200 |
Advances to affiliate | $ 6,500 |  | $ 5,700

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