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CONSOLIDATED FINANCIAL STATEMENT DETAILS (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2010 | Jun. 30, 2010 | Mar. 31, 2010 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period |  |  |  | $ 59,869 |  |  |  | $ 28,180 | $ 59,869 | $ 28,180 | $ 22,771
Purchase of noncontrolling interests |  |  |  |  |  |  |  |  | (5,779) |  | (216)
Distribution to owners of noncontrolling interests |  |  |  |  |  |  |  |  | (1,755) |  |
Contribution from owners of noncontrolling interests |  |  |  |  |  |  |  |  | 199 | 79 | 1,750
Net loss attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (239) | (5,007) | (1,090)
Change in fair value of redeemable noncontrolling interests |  |  |  |  |  |  |  |  | 4,273 | (2,059) | 1,033
Change in foreign currency translation adjustment |  |  |  |  |  |  |  |  | (2,968) | (267) | 371
Other |  |  |  |  |  |  |  |  | (1,990) | (390) |
Balance at the end of the period | 50,349 |  |  |  | 59,869 |  |  |  | 50,349 | 59,869 | 28,180
Accumulated other comprehensive (loss) income |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment, net of tax | (25,174) |  |  |  | 16,027 |  |  |  | (25,174) | 16,027 |
Unrealized gains on available-for-sale securities, net of tax | 12,731 |  |  |  | 1,519 |  |  |  | 12,731 | 1,519 |
Accumulated other comprehensive (loss) income | (12,443) |  |  |  | 17,546 |  |  |  | (12,443) | 17,546 |
Revenue |  |  |  |  |  |  |  |  |  |  |
Service revenue |  |  |  |  |  |  |  |  | 1,932,289 | 1,522,217 | 1,240,787
Product revenue |  |  |  |  |  |  |  |  | 127,155 | 114,598 | 105,908
Revenue | 596,943 | 516,884 | 485,404 | 460,213 | 451,427 | 412,966 | 394,244 | 378,178 | 2,059,444 | 1,636,815 | 1,346,695
Cost of revenue |  |  |  |  |  |  |  |  |  |  |
Cost of service revenue |  |  |  |  |  |  |  |  | 666,424 | 508,640 | 352,824
Cost of product revenue |  |  |  |  |  |  |  |  | 94,820 | 85,176 | 77,025
Cost of revenue | 218,412 | 188,642 | 181,472 | 172,718 | 174,096 | 147,933 | 140,638 | 131,149 | 761,244 | 593,816 | 429,849
Meetic |  |  |  |  |  |  |  |  |  |  |
Redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests related to acquisitions |  |  |  |  |  |  |  |  | 36,656 |  |
Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 46,100 |  |
Other acquisitions |  |  |  |  |  |  |  |  |  |  |
Redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests related to acquisitions |  |  |  |  |  |  |  |  |  | 3,333 | 3,561
Latin American venture |  |  |  |  |  |  |  |  |  |  |
Redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests related to acquisitions |  |  |  |  |  |  |  |  |  | 20,250 |
Noncontrolling interests created by a decrease in the ownership of a subsidiary contributed to a consolidated Latin American venture |  |  |  |  |  |  |  |  |  | 15,750 |
Latin American venture | Meetic |  |  |  |  |  |  |  |  |  |  |
Redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests related to acquisitions |  |  |  |  |  |  |  |  | $ (37,917) |  |

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