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Segment Information - Schedule of Reportable Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Mar. 31, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales to external customers | $ 296,129 | $ 278,233 |  | $ 850,669 | $ 853,499 |
Intercompany sales | 0 | 0 |  | 0 | 0 |
Operating income | 40,617 | 40,022 |  | 74,341 | 116,648 |
Restructuring and other charges | (3,214) | (1,889) | $ (1,900) | (16,920) | (3,697) |
Currency exchange losses, net | 562 | 790 |  | 3,994 | 2,498 |
Other operating expense (Note 18) | 3,346 | 0 |  | 32,956 | 0 |
Adjusted operating income (loss) | 47,739 | 42,701 |  | 128,211 | 122,843 |
Assets | 1,595,217 | 1,427,946 |  | 1,595,217 | 1,427,946 | $ 1,353,920
Americas |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Restructuring and other charges |  |  |  | (12,500) | (1,200) |
International |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Restructuring and other charges | (4,400) |  |  |  | (3,400) |
Reportable Segments | Americas |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales to external customers | 186,898 | 165,359 |  | 528,426 | 510,324 |
Intercompany sales | 31,451 | 28,324 |  | 93,904 | 86,194 |
Adjusted operating income (loss) | $ 47,256 | $ 41,458 |  | $ 130,887 | $ 117,475 |
Adjusted operating margin % | 25.30% | 25.10% |  | 24.80% | 23.00% |
Assets | $ 1,037,690 | $ 885,416 |  | $ 1,037,690 | $ 885,416 |
Reportable Segments | International |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales to external customers | 109,231 | 112,874 |  | 322,243 | 343,175 |
Intercompany sales | 72,496 | 65,098 |  | 218,267 | 195,435 |
Adjusted operating income (loss) | $ 9,077 | $ 10,511 |  | $ 26,691 | $ 31,659 |
Adjusted operating margin % | 8.30% | 9.30% |  | 8.30% | 9.20% |
Assets | $ 542,542 | $ 533,868 |  | $ 542,542 | $ 533,868 |
Reportable Segments | Corporate |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales to external customers | 0 | 0 |  | 0 | 0 |
Intercompany sales | 0 | 0 |  | 0 | 0 |
Adjusted operating income (loss) | (8,594) | (9,268) |  | (29,367) | (26,291) |
Assets | 10,862 | 3,829 |  | 10,862 | 3,829 |
Reconciling Items |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales to external customers | 0 | 0 |  | 0 | 0 |
Intercompany sales | (103,947) | (93,422) |  | (312,171) | (281,629) |
Adjusted operating income (loss) | 0 | 0 |  | 0 | 0 |
Assets | $ 4,123 | $ 4,833 |  | $ 4,123 | $ 4,833 |

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