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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, 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] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers | $ 346,140 | $ 296,129 | $ 288,775 | $ 265,765 | $ 296,031 | $ 278,233 | $ 295,998 | $ 279,268 | $ 1,196,809 | $ 1,149,530 | $ 1,130,783
Intercompany sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating income |  |  |  |  |  |  |  |  | 43,345 | 164,192 | 122,741
Restructuring and other charges |  |  |  |  |  |  |  |  | 17,632 | 5,694 | 12,258
Currency exchange losses, net |  |  |  |  |  |  |  |  | 5,127 | 766 | 2,204
Other operating expense (Note 19) |  |  |  |  |  |  |  |  | 126,432 | 0 | 0
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | 192,536 | 170,652 | 137,203
Depreciation and amortization |  |  |  |  |  |  |  |  | 37,877 | 34,813 | 32,680
Pension expense |  |  |  |  |  |  |  |  | 7,142 | 6,332 | 11,955
Total Assets | 1,684,826 |  |  |  | 1,353,920 |  |  |  | 1,684,826 | 1,353,920 | 1,422,863
Capital expenditures |  |  |  |  |  |  |  |  | 23,725 | 25,523 | 36,241
Corporate |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intercompany sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | (37,212) | (38,627) | (38,269)
Depreciation and amortization |  |  |  |  |  |  |  |  | 405 | 0 | 0
Pension expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total Assets | 12,099 |  |  |  | 10,903 |  |  |  | 12,099 | 10,903 | 16,362
Capital expenditures |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating Segments | Americas |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 736,847 | 678,433 | 704,754
Intercompany sales |  |  |  |  |  |  |  |  | 124,886 | 113,273 | 134,185
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | $ 184,287 | $ 162,788 | $ 141,971
Adjusted operating margin % |  |  |  |  |  |  |  |  | 0.00% | 0.00% | 0.00%
Depreciation and amortization |  |  |  |  |  |  |  |  | $ 23,207 | $ 21,046 | $ 21,180
Pension expense |  |  |  |  |  |  |  |  | 246 | 544 | 3,759
Total Assets | 1,110,698 |  |  |  | 836,243 |  |  |  | 1,110,698 | 836,243 | 873,045
Capital expenditures |  |  |  |  |  |  |  |  | 16,910 | 16,306 | 22,568
Operating Segments | International |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 459,962 | 471,097 | 426,029
Intercompany sales |  |  |  |  |  |  |  |  | 304,376 | 275,640 | 225,358
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | $ 45,461 | $ 46,491 | $ 33,501
Adjusted operating margin % |  |  |  |  |  |  |  |  | 0.00% | 0.00% | 0.00%
Depreciation and amortization |  |  |  |  |  |  |  |  | $ 14,265 | $ 13,767 | $ 11,500
Pension expense |  |  |  |  |  |  |  |  | 6,896 | 6,876 | 8,196
Total Assets | 563,480 |  |  |  | 505,278 |  |  |  | 563,480 | 505,278 | 532,960
Capital expenditures |  |  |  |  |  |  |  |  | 6,815 | 9,217 | 13,673
Reconciling Items |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intercompany sales |  |  |  |  |  |  |  |  | (429,262) | (388,913) | (359,543)
Adjusted operating income (loss) |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  | 0 | 0 | 0
Pension expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total Assets | $ (1,451) |  |  |  | $ 1,496 |  |  |  | (1,451) | 1,496 | 496
Capital expenditures |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0

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