| Schedule of Goodwill [Table Text Block] |
The following table summarizes the Company's goodwill activity by segment (in thousands): | | | | | | | | | | | | | | | | North America | | International | | Consolidated | Balance as of December 31, 2010 | | $ | 19,605 |
| | $ | 112,433 |
| | $ | 132,038 |
| Goodwill related to acquisitions | | 21,126 |
| | 15,413 |
| | 36,539 |
| Other adjustments(1) | | — |
| | (1,674 | ) | | (1,674 | ) | Balance as of December 31, 2011 | | $ | 40,731 |
| | $ | 126,172 |
| | $ | 166,903 |
| Goodwill related to acquisitions | | 39,170 |
| | — |
| | 39,170 |
| Other adjustments(1) | | (625 | ) | | 1,236 |
| | 611 |
| Balance as of December 31, 2012 | | $ | 79,276 |
| | $ | 127,408 |
| | $ | 206,684 |
|
| | (1) | Includes changes in foreign exchange rates for goodwill and purchase accounting adjustments. |
|
| Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block] |
The following tables summarize the Company's other intangible assets (in thousands): | | | | | | | | | | | | | | | | | | As of December 31, 2012 | Asset Category | | Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | | Weighted-Average Remaining Useful Life (in years) | Subscriber relationships | | $ | 42,075 |
| | $ | 21,356 |
| | $ | 20,719 |
| | 2.5 | Merchant relationships | | 8,187 |
| | 6,873 |
| | 1,314 |
| | 1.0 | Trade names | | 6,490 |
| | 5,900 |
| | 590 |
| | 2.0 | Developed technology | | 20,000 |
| | 10,994 |
| | 9,006 |
| | 1.2 | Other intangible assets | | 15,601 |
| | 4,633 |
| | 10,968 |
| | 3.5 | Total | | $ | 92,353 |
| | $ | 49,756 |
| | $ | 42,597 |
| | 2.4 |
| | | | | | | | | | | | | | | | | | As of December 31, 2011 | Asset Category | | Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | | Weighted-Average Remaining Useful Life (in years) | Subscriber relationships | | $ | 41,272 |
| | $ | 12,882 |
| | $ | 28,390 |
| | 3.5 | Merchant relationships | | 6,600 |
| | 6,600 |
| | — |
| | 0.0 | Trade names | | 5,801 |
| | 5,801 |
| | — |
| | 0.0 | Developed technology | | 5,583 |
| | 2,151 |
| | 3,432 |
| | 1.5 | Other intangible assets | | 15,420 |
| | 1,575 |
| | 13,845 |
| | 4.7 | Total | | $ | 74,676 |
| | $ | 29,009 |
| | $ | 45,667 |
| | 3.7 |
|
| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
As of December 31, 2012, the Company's estimated future amortization expense of these intangible assets was as follows (in thousands): | | | | | | Year Ended December 31, | | | 2013 | | $ | 20,384 |
| 2014 | | 13,451 |
| 2015 | | 7,062 |
| 2016 | | 1,689 |
| Thereafter | | 11 |
| | | $ | 42,597 |
|
|