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Accumulated Other Comprehensive Income (Loss), Net of Tax (Tables) | 12 Months Ended
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Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule Of Accumulated Other Comprehensive Income (Loss), Net Of Tax | Components of Accumulated other comprehensive income (loss), net of tax, consisted of:
|  | Foreign Currency Translation Adjustments |  | Unrealized Holding Gains (Losses) on Investments |  | Accumulated Other Comprehensive Income (Loss)
Balance, January 1, 2016 |  | $ | (24,988 | ) |  | $ | (302 | ) |  | $ | (25,290 | )
Other comprehensive loss before reclassifications |  | (12,131 | ) |  | (918 | ) |  | (13,049 | )
Amounts reclassified from accumulated other comprehensive loss |  | — |  |  | 384 |  |  | 384 |
Net current-period other comprehensive loss |  | (12,131 | ) |  | (534 | ) |  | (12,665 | )
Balance, December 31, 2016 |  | $ | (37,119 | ) |  | $ | (836 | ) |  | $ | (37,955 | )
Other comprehensive gain before reclassifications |  | 17,597 |  |  | 190 |  |  | 17,787 |
Amounts reclassified from accumulated other comprehensive loss |  | — |  |  | 260 |  |  | 260 |
Net current-period other comprehensive gain |  | 17,597 |  |  | 450 |  |  | 18,047 |
Balance, December 31, 2017 |  | $ | (19,522 | ) |  | $ | (386 | ) |  | $ | (19,908 | )
Other comprehensive loss before reclassifications |  | (12,065 | ) |  | (1,088 | ) |  | (13,153 | )
Amounts reclassified from accumulated other comprehensive loss |  | — |  |  | 61 |  |  | 61 |
Net current-period other comprehensive loss |  | (12,065 | ) |  | (1,027 | ) |  | (13,092 | )
Balance, December 31, 2018 |  | $ | (31,587 | ) |  | $ | (1,413 | ) |  | $ | (33,000 | )

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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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