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Business Segments and Geographic Information - Geographic Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Geographical Information |  |  |
Revenues | $ 2,256,612 | $ 2,350,098 | $ 2,477,922
Property and Equipment, Net | 2,037,845 | 2,122,195 | 2,144,722
U.S. operations |  |  |
Geographical Information |  |  |
Revenues | 2,043,157 | 2,123,045 | 2,216,401
Property and Equipment, Net | 2,026,252 | 2,109,070 | 2,131,877
Australia operations |  |  |
Geographical Information |  |  |
Revenues | 186,980 | 201,932 | 235,462
Property and Equipment, Net | 11,491 | 12,908 | 12,215
South African operations |  |  |
Geographical Information |  |  |
Revenues | 19,527 | 17,044 | 18,779
Property and Equipment, Net | 102 | 127 | 182
United Kingdom operations |  |  |
Geographical Information |  |  |
Revenues | $ 6,948 | 8,077 | 7,280
Property and Equipment, Net |  | $ 90 | $ 448

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