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Selected Segment Financial Data, Revenues and Long lived Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016
Revenues |  |  |
Revenues | $ 231,462 | $ 226,066 |
Long lived assets |  |  |
Long lived assets | 1,404,499 |  | $ 1,416,825
United States [Member] |  |  |
Revenues |  |  |
Revenues | 135,002 | 133,365 |
Long lived assets |  |  |
Long lived assets | 783,950 |  | 752,442
United Kingdom [Member] |  |  |
Long lived assets |  |  |
Long lived assets | 202,915 |  | 204,193
Other [Member] |  |  |
Revenues |  |  |
Revenues | 96,460 | $ 92,701 |
Long lived assets |  |  |
Long lived assets | $ 417,634 |  | $ 460,190

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