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Segment Information - Schedule Of Reportable Segment Information (Detail) - USD ($) number in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 361,783 | $ 331,096 | $ 339,331 | $ 325,894 | $ 346,140 | $ 296,129 | $ 288,775 | $ 265,765 | $ 1,358,104 | $ 1,196,809 | $ 1,149,530
Intercompany sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating income |  |  |  |  |  |  |  |  | 173,479 | 39,577 | 160,702
Restructuring and other charges (Note 2) |  |  |  |  |  |  |  |  | 13,247 | 17,632 | 5,694
Currency exchange losses, net |  |  |  |  |  |  |  |  | 2,330 | 5,127 | 766
Other operating expense (Note 19) |  |  |  |  |  |  |  |  | 45,327 | 126,432 | 0
Strategic transaction costs (Note 13) |  |  |  |  |  |  |  |  | 400 | 4,200 | 2,500
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | 234,804 | 192,993 | 169,693
Depreciation and amortization |  |  |  |  |  |  |  |  | 37,852 | 37,877 | 35,273
Pension (income) expense |  |  |  |  |  |  |  |  | (5,901) | (7,142) | (6,332)
Total Assets | 1,608,012 |  |  |  | 1,684,826 |  |  |  | 1,608,012 | 1,684,826 | 1,353,920
Capital expenditures |  |  |  |  |  |  |  |  | 33,960 | 23,725 | 25,523
Americas |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 854,287 | 736,847 | 678,433
Corporate |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intercompany sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | (31,901) | (32,987) | (36,095)
Depreciation and amortization |  |  |  |  |  |  |  |  | 406 | 405 | 406
Pension (income) expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total Assets | 10,842 |  |  |  | 12,099 |  |  |  | 10,842 | 12,099 | 10,903
Capital expenditures |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating Segments | Americas |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 854,287 | 736,847 | 678,433
Intercompany sales |  |  |  |  |  |  |  |  | 136,534 | 124,886 | 113,273
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | $ 206,839 | $ 175,589 | $ 154,298
Adjusted operating margin % |  |  |  |  |  |  |  |  | 0.00% | 0.00% | 0.00%
Depreciation and amortization |  |  |  |  |  |  |  |  | $ 24,143 | $ 23,207 | $ 21,046
Pension (income) expense |  |  |  |  |  |  |  |  | (1,201) | (246) | (544)
Total Assets | 1,077,938 |  |  |  | 1,110,698 |  |  |  | 1,077,938 | 1,110,698 | 836,243
Capital expenditures |  |  |  |  |  |  |  |  | 25,001 | 16,910 | 16,306
Operating Segments | International |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 503,817 | 459,962 | 471,097
Intercompany sales |  |  |  |  |  |  |  |  | 336,361 | 304,376 | 275,640
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | $ 59,866 | $ 50,391 | $ 51,490
Adjusted operating margin % |  |  |  |  |  |  |  |  | 0.00% | 0.00% | 0.00%
Depreciation and amortization |  |  |  |  |  |  |  |  | $ 13,303 | $ 14,265 | $ 13,821
Pension (income) expense |  |  |  |  |  |  |  |  | (7,102) | (6,896) | (6,876)
Total Assets | 522,042 |  |  |  | 563,480 |  |  |  | 522,042 | 563,480 | 505,278
Capital expenditures |  |  |  |  |  |  |  |  | 8,959 | 6,815 | 9,217
Reconciling Items |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intercompany sales |  |  |  |  |  |  |  |  | (472,895) | (429,262) | (388,913)
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  | 0 | 0 | 0
Pension (income) expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total Assets | $ (2,810) |  |  |  | $ (1,451) |  |  |  | (2,810) | (1,451) | 1,496
Capital expenditures |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0

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