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Accumulated Other Comprehensive Loss (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance |  |  | $ 13,078,000 |
Ending balance | $ 17,375,000 |  | 17,375,000 |
Amounts reclassified from accumulated other comprehensive loss | 0 | $ 0 | 0 | $ 0
AOCI |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (3,780,000) | (3,820,000) | (3,597,000) | (3,787,000)
Ending balance | (4,115,000) | (3,687,000) | (4,115,000) | (3,687,000)
Foreign Currency Translation |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Other comprehensive income (loss) due to foreign currency translation, net of tax | $ (335,000) | $ 133,000 | $ (518,000) | $ 100,000

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