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Accumulated Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2017
Summary of Changes in Accumulated Other Comprehensive Income | The following table summarizes the changes in accumulated other comprehensive income by component (in thousands):
(In thousands) |  | Unrealized gain (loss) on investments |  |  | Foreign currency translation gain (loss) |  |  | Total |
Balance at December 31, 2016 |  | $ | (5 | ) |  | $ | (13,744 | ) |  | $ | (13,749 | )
Other comprehensive income |  |  | 5 |  |  |  | 5,073 |  |  |  | 5,078 |
Balance at June 30, 2017 |  | $ | — |  |  | $ | (8,671 | ) |  | $ | (8,671 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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