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v3.19.3.a.u2

Business Segments (Principal Geographical Areas) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Principal Geographical Areas Information |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 1,177,725 | $ 1,189,345 | $ 1,125,275 | $ 958,487 | $ 1,183,284 | $ 1,123,137 | $ 1,120,085 | $ 1,028,156 | $ 4,450,832 | $ 4,454,662 | $ 4,757,208
Assets | 4,485,777 |  |  |  | 4,387,752 |  |  |  | 4,485,777 | 4,387,752 |
United States |  |  |  |  |  |  |  |  |  |  |
Principal Geographical Areas Information |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 4,073,691 | 4,180,206 | 4,613,644
Assets | 4,271,722 |  |  |  | 4,225,143 |  |  |  | 4,271,722 | 4,225,143 |
Foreign and U.S. Territories [Member] |  |  |  |  |  |  |  |  |  |  |
Principal Geographical Areas Information |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 377,141 | 274,456 | $ 143,564
Assets | $ 214,055 |  |  |  | $ 162,609 |  |  |  | $ 214,055 | $ 162,609 |

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