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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2018
Equity [Abstract] |
Activity within Accumulated Other Comprehensive Loss | Activity within accumulated other comprehensive loss for the three years ended December 31, 2018, 2017, and 2016, which consists of foreign currency translation adjustments, was as follows (in thousands):
|  | Accumulated Other Comprehensive Loss |
Balance at December 31, 2015 |  | $ | (71,576 | )
Other comprehensive loss |  |  | (22,524 | )
Balance at December 31, 2016 |  |  | (94,100 | )
Other comprehensive income |  |  | 16,744 |
Balance at December 31, 2017 |  |  | (77,356 | )
Other comprehensive loss |  |  | (15,261 | )
Balance at December 31, 2018 |  | $ | (92,617 | )

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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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