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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2018
Stockholders' Equity Note [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) By Component | The changes in the balances of accumulated other comprehensive loss by component are as follows:
(in thousands) |  | Foreign currency translation adjustment |  | Defined benefit pension plan |  | Liquidation of non-US entity and purchase of non-controlling interests |  | Total
Balance at December 31, 2016 |  | $ | (50,738 | ) |  | $ | (2,775 | ) |  | $ | 288 |  |  | $ | (53,225 | )
Other comprehensive income (loss) |  | 31,419 |  |  | 220 |  |  | 50 |  |  | 31,689 |
Balance at December 31, 2017 |  | (19,319 | ) |  | (2,555 | ) |  | 338 |  |  | (21,536 | )
Other comprehensive income |  | (18,751 | ) |  | (92 | ) |  | — |  |  | (18,843 | )
Amounts reclassified from accumulated other comprehensive income |  | 1,401 |  |  | — |  |  | — |  |  | 1,401 |
Balance at December 31, 2018 |  | $ | (36,669 | ) |  | $ | (2,647 | ) |  | $ | 338 |  |  | $ | (38,978 | )
Amounts reclassified out of accumulated other comprehensive loss are as follows:
(in thousands) |  | 2018 |  | 2017 |  | Statement of Operations Caption
Currency translation adjustments: |  |  |  |  |  |
Gain on dissolution |  | $ | 1,401 |  |  | $ | — |  |  | Interest and other expense, net

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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