| Schedule of Goodwill [Table Text Block] |
The following table summarizes the Company's goodwill activity for the nine months ended September 30, 2012 (in thousands): | | | | | | | | | | | | | | | | North America | | International | | Consolidated | Balance as of December 31, 2011 | | $ | 40,731 |
| | $ | 126,172 |
| | $ | 166,903 |
| Goodwill related to acquisitions | | 32,557 |
| | — |
| | 32,557 |
| Other adjustments(1) | | (1,254 | ) | | (1,228 | ) | | (2,482 | ) | Balance as of September 30, 2012 | | $ | 72,034 |
| | $ | 124,944 |
| | $ | 196,978 |
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| | (1) | Includes changes in foreign exchange rates for goodwill and purchase accounting adjustments. |
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| Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block] |
The following table summarizes the Company's other intangible assets (in thousands): | | | | | | | | | | | | | | | | As of December 31, 2011 | Asset Category | | Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | Subscriber relationships | | $ | 41,272 |
| | $ | 12,882 |
| | $ | 28,390 |
| Merchant relationships | | 6,600 |
| | 6,600 |
| | — |
| Trade names | | 5,801 |
| | 5,801 |
| | — |
| Developed technology | | 5,583 |
| | 2,151 |
| | 3,432 |
| Other intangible assets | | 15,420 |
| | 1,575 |
| | 13,845 |
| Total | | $ | 74,676 |
| | $ | 29,009 |
| | $ | 45,667 |
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| | | | | | | | | | | | | | | | As of September 30, 2012 | Asset Category | | Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | Subscriber relationships | | $ | 41,161 |
| | $ | 18,853 |
| | $ | 22,308 |
| Merchant relationships | | 7,920 |
| | 6,550 |
| | 1,370 |
| Trade names | | 5,751 |
| | 5,751 |
| | — |
| Developed technology | | 25,422 |
| | 9,432 |
| | 15,990 |
| Other intangible assets | | 15,469 |
| | 3,690 |
| | 11,779 |
| Total | | $ | 95,723 |
| | $ | 44,276 |
| | $ | 51,447 |
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| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
As of September 30, 2012, the Company's estimated future amortization expense of these intangible assets was as follows (in thousands): | | | | | | Year Ending December 31, 2011 | | | Remaining amounts in 2012 | | $ | 6,199 |
| 2013 | | 22,933 |
| 2014 | | 13,703 |
| 2015 | | 6,949 |
| 2016 | | 1,663 |
| Thereafter | | — |
| | | $ | 51,447 |
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