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Other Comprehensive Loss (Tables) | 6 Months Ended
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Jun. 30, 2013
Schedule of Tax Effects Allocated to Each Component of Other Comprehensive (Loss) Income | The tax effects allocated to each component of other comprehensive loss are as follows:
|  | Quarter Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Foreign currency translation adjustment |  | $ | (8,377 | ) |  | $ | (8,666 | ) |  | $ | (13,440 | ) |  | $ | (8,666 | )
Unrealized (loss) gain on available-for-sale securities |  | $ | (17 | ) |  | $ | (6 | ) |  | $ | (3 | ) |  | $ | 23 |
Income tax (benefit) expense |  |  | (6 | ) |  |  | (2 | ) |  |  | — |  |  |  | 11 |
Unrealized (loss) gain on available-for-sale securities, net of tax |  | $ | (11 | ) |  | $ | (4 | ) |  | $ | (3 | ) |  | $ | 12 |
Other comprehensive loss |  | $ | (8,388 | ) |  | $ | (8,670 | ) |  | $ | (13,443 | ) |  | $ | (8,654 | )
Schedule of Accumulated Other Comprehensive Loss | The changes in accumulated other comprehensive loss, net of tax, are as follows:
Six Months Ended June 30, |  | 2013 |  |  | 2012 |
Foreign currency translation adjustment: |  |  |  |  |  |  |  |
Beginning balance |  | $ | (1,785 | ) |  | $ | — |
Current period other comprehensive loss |  |  | (7,676 | ) |  |  | (4,840 | )
Ending balance |  | $ | (9,461 | ) |  | $ | (4,840 | )
Available-for-sale securities: |  |  |  |  |  |  |  |
Beginning balance |  | $ | (317 | ) |  | $ | (352 | )
Current period other comprehensive income |  |  | (3 | ) |  |  | 12 |
Ending balance |  | $ | (320 | ) |  | $ | (340 | )
Accumulated other comprehensive loss, net of tax |  | $ | (9,781 | ) |  | $ | (5,180 | )

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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=28358780&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e526-108580 + Details
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