v2.4.0.6
Guarantor And Non-Guarantor Supplemental Financial Information (Schedule Of Statement Of Operations Information) (Details) (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
Revenue $ 787,133 $ 1,020,450 $ 913,591 $ 727,835 $ 737,591 $ 898,099 $ 751,537 $ 646,418 $ 3,449,009 $ 3,033,645 $ 2,743,051
Costs and expenses:                      
Cost of revenue                 761,272 [1] 685,487 [1] 602,682 [1]
Selling and marketing (including $211,018, $171,110 and $139,714 with a related party)                 1,474,641 [1] 1,234,781 [1] 1,061,097 [1]
Technology and content                 380,999 [1] 308,780 [1] 282,634 [1]
General and administrative                 309,708 [1] 258,604 [1] 272,853 [1]
Amortization of intangible assets                 21,925 22,514 23,875
Legal reserves, occupancy tax and other                 20,855 22,692 67,999
Restructuring charges                     34,168
Operating income 91,645 209,099 143,707 35,158 112,935 209,154 126,536 52,162 479,609 500,787 397,743
Other income (expense):                      
Other, net                 (77,537) (74,948) (77,967)
Total other expense, net                 (77,537) (74,948) (77,967)
Income before income taxes                 402,072 425,839 319,776
Provision for income taxes                 (75,731) (120,342) (101,502)
Income from continuing operations                 326,341 305,497 218,274
Discontinued operations, net of taxes                 148,262 120,063 85,349
Net income                 474,603 425,560 303,623
Net income attributable to noncontrolling interests                 (2,309) (4,060) (4,097)
Net income 70,328 209,534 140,393 52,039 71,293 176,550 114,262 59,395 472,294 421,500 299,526
Parent [Member]
                      
Other income (expense):                      
Equity in pre-tax earnings of consolidated subsidiaries                 382,403 341,750 240,115
Other, net                 (83,421) (56,193) (37,999)
Total other expense, net                 298,982 285,557 202,116
Income before income taxes                 298,982 285,557 202,116
Provision for income taxes                 25,050 15,880 12,061
Income from continuing operations                 324,032 301,437 214,177
Discontinued operations, net of taxes                 148,262 120,063 85,349
Net income                 472,294 421,500 299,526
Net income                 472,294 421,500 299,526
Guarantor Subsidiaries [Member]
                      
Revenue                 3,041,755 2,679,420 2,375,142
Costs and expenses:                      
Cost of revenue                 648,219 590,236 495,029
Selling and marketing (including $211,018, $171,110 and $139,714 with a related party)                 1,088,145 917,344 730,272
Technology and content                 297,859 255,306 231,775
General and administrative                 213,594 181,920 195,741
Amortization of intangible assets                 4,988 5,071 6,596
Legal reserves, occupancy tax and other                 20,855 22,692 67,999
Restructuring charges                     8,761
Intercompany (income) expense, net                 597,105 347,361 232,828
Operating income                 170,990 359,490 406,141
Other income (expense):                      
Equity in pre-tax earnings of consolidated subsidiaries                 244,429 120,085 (21,017)
Other, net                 44,288 (18,358) (38,646)
Total other expense, net                 288,717 101,727 (59,663)
Income before income taxes                 459,707 461,217 346,478
Provision for income taxes                 (73,165) (115,126) (103,205)
Income from continuing operations                 386,542 346,091 243,273
Discontinued operations, net of taxes                 140,200 142,150 107,671
Net income                 526,742 488,241 350,944
Net income                 526,742 488,241 350,944
Non-Guarantor Subsidiaries [Member]
                      
Revenue                 424,018 366,408 378,034
Costs and expenses:                      
Cost of revenue                 111,868 96,372 111,910
Selling and marketing (including $211,018, $171,110 and $139,714 with a related party)                 404,409 328,683 336,606
Technology and content                 83,388 53,416 50,797
General and administrative                 95,902 76,558 77,261
Amortization of intangible assets                 16,937 17,443 17,279
Restructuring charges                     25,407
Intercompany (income) expense, net                 (597,105) (347,361) (232,828)
Operating income                 308,619 141,297 (8,398)
Other income (expense):                      
Other, net                 (38,404) (397) (1,322)
Total other expense, net                 (38,404) (397) (1,322)
Income before income taxes                 270,215 140,900 (9,720)
Provision for income taxes                 (27,616) (21,096) (10,358)
Income from continuing operations                 242,599 119,804 (20,078)
Discontinued operations, net of taxes                 32,464 78,470 42,733
Net income                 275,063 198,274 22,655
Net income attributable to noncontrolling interests                 (2,309) (4,060) (4,097)
Net income                 272,754 194,214 18,558
Eliminations [Member]
                      
Revenue                 (16,764) (12,183) (10,125)
Costs and expenses:                      
Cost of revenue                 1,185 (1,121) (4,257)
Selling and marketing (including $211,018, $171,110 and $139,714 with a related party)                 (17,913) (11,246) (5,781)
Technology and content                 (248) 58 62
General and administrative                 212 126 (149)
Other income (expense):                      
Equity in pre-tax earnings of consolidated subsidiaries                 (626,832) (461,835) (219,098)
Total other expense, net                 (626,832) (461,835) (219,098)
Income before income taxes                 (626,832) (461,835) (219,098)
Income from continuing operations                 (626,832) (461,835) (219,098)
Discontinued operations, net of taxes                 (172,664) (220,620) (150,404)
Net income                 (799,496) (682,455) (369,502)
Net income                 $ (799,496) $ (682,455) $ (369,502)
[1] Includes stock-based compensation as follows: Cost of revenue for year ended December 31, 2011, 2010, and 2009 were: $2,971, $2,401, and $2,285 in thousands respectively. Selling and marketing for year ended December 31, 2011, 2010, and 2009 were: $13,085, $11,766, and $10,555 in thousands respectively. Technology and content for year ended December 31, 2011, 2010, and 2009 were: $13,505, $11,665, and $13,424 in thousands respectively. General and administrative for year ended December 31, 2011, 2010, and 2009 were: $34,286, $26,675, and $29,492 in thousands respectively.