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Selected Segment Financial Data, Revenues and Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 326,395 | $ 225,735 | $ 240,599 | $ 231,462 | $ 342,730 |  | $ 216,975 |  | $ 219,930 |  | $ 226,066 |  | $ 1,024,191 | $ 1,005,701 |  | $ 1,045,977
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  |  |  | 102,224 | 103,454 |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | 13,683 | 43,613 |  | 18,380
Income (loss) before income taxes | $ 98,922 | $ 1,155 | $ (50,723) | $ (5,782) | $ 109,862 | [1] | $ (16,252) | [1] | $ (34,143) | [1] | $ 126,114 | [1] | 43,572 | 185,581 | [1] | 113,373
United States [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | 541,235 | 527,431 |  | 628,013
Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | 482,956 | 478,270 |  | 417,964
Corporate and Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,416 |  | 94,603
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  |  |  | 54,959 | 59,488 |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,219 | 29,843 |  |
Scenario Previously Reported |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,005,701 |  | 1,045,977
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,454 |  | 97,431
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 43,613 |  | 18,380
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  | 185,581 |  | 113,373
Scenario Previously Reported | Operating Segments [Member] | Americas Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 27,951 |  | 24,966
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,005 |  | 1,638
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  | 206,689 |  | 111,382
Scenario Previously Reported | Operating Segments [Member] | Americas Segment [Member] | United States [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 527,431 |  | 628,013
Scenario Previously Reported | Operating Segments [Member] | Americas Segment [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 116,718 |  | 82,548
Scenario Previously Reported | Operating Segments [Member] | EMEA Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 261,160 |  | 250,568
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,830 |  | 3,670
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,476 |  | 1,223
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  | 176,958 |  | 132,518
Scenario Previously Reported | Operating Segments [Member] | Asia/Pacific Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,392 |  | 84,848
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,820 |  | 1,751
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 605 |  | 36
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  | 62,422 |  | 41,658
Scenario Previously Reported | Corporate and Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 69,853 |  | 67,044
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 31,527 |  | 15,483
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (260,488) |  | $ (172,185)
[1] | The Company adopted ASU 2016-09, Compensation - Stock Compensation: Improvements to Employee Share-Based Payment Accounting, ("ASU 2016-09") during the year ended December 31, 2016. The Company elected to early adopt ASU 2016-09 in the third quarter of 2016, which requires it to reflect any adjustments as of January 1, 2016, the beginning of the annual period that includes the interim period of adoption. The impact of the adoption to the Company's previously reported quarterly results for the quarters ended March 31 and June 30, 2016 are reflected in the table above.

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