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Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income (loss) | $ 55 | $ 1,548 | $ (1,068) | $ 3,512
Other comprehensive income (loss), net of tax: |  |  |  |
Unrealized gain (loss) on available-for-sale securities | 10 | (29) | 18 | (33)
Foreign currency translation adjustment | 670 | (845) | 918 | (1,235)
Unrealized (loss) gain on derivative instruments | (8) | 25 | 1 | 66
Other comprehensive income (loss), net of tax | 672 | (849) | 937 | (1,202)
Total comprehensive income (loss) | $ 727 | $ 699 | $ (131) | $ 2,310

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