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Description of Business and Summary of Significant Accounting Policies (Details 2) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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| Revenue from U.S., Canadian and all other international customers combined | ||||
| Total revenue | $ 33,641 | $ 28,605 | $ 92,755 | $ 78,847 |
| International revenue (excluding Canada) as a percent of total revenue | 23.00% | 26.00% | 22.00% | 23.00% |
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United States
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| Revenue from U.S., Canadian and all other international customers combined | ||||
| Total revenue | 22,264 | 17,845 | 61,430 | 51,347 |
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Canada
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| Revenue from U.S., Canadian and all other international customers combined | ||||
| Total revenue | 3,641 | 3,344 | 10,690 | 9,184 |
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All other international sources
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| Revenue from U.S., Canadian and all other international customers combined | ||||
| Total revenue | $ 7,736 | $ 7,416 | $ 20,635 | $ 18,316 |