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Accumulated Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2013
Equity and Accumulated Other Comprehensive Income [Abstract] |
Summary of changes in accumulated other comprehensive income by component, including reclassifications |
(in thousands) |  | Unrealized Loss on Available-for-Sale Securities |  |  | Foreign Currency Translation |  |  | Accumulated Other Comprehensive Income |  | Location of (Gain) Loss Recognized
Balance at December 31, 2012 |  | $ | (15 | ) |  | $ | 285 |  |  | $ | 270 |  |
Other comprehensive (loss) income before reclassifications |  |  | (34 | ) |  |  | 334 |  |  |  | 300 |  |
Amounts reclassified from accumulated other comprehensive income |  |  | 49 |  |  |  | — |  |  |  | 49 |  | Interest income
Net other comprehensive income |  |  | 15 |  |  |  | 334 |  |  |  | 349 |  |
Balance at September 30, 2013 |  | $ | — |  |  | $ | 619 |  |  | $ | 619 |  |

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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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