v2.4.0.8
GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details2) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Condensed Financial Statements, Captions [Line Items]        
Revenue $ 799,411 $ 680,612 $ 1,541,660 $ 1,321,212
Costs and expenses:        
Cost of revenue (exclusive of depreciation shown separately below) 272,822 237,304 528,671 460,604
Selling and marketing expense 247,153 211,252 490,067 430,038
General and administrative expense 103,515 89,639 199,239 178,111
Product development expense 34,052 26,911 69,169 55,032
Depreciation 17,036 12,225 31,052 24,340
Amortization of intangibles 18,137 5,805 32,215 12,846
Total costs and expenses 692,715 583,136 1,350,413 1,160,971
Operating income 106,696 97,476 191,247 160,241
Equity in losses of unconsolidated affiliates (1,078) (19,009) (1,169) (24,910)
Interest expense (7,658) (1,364) (15,321) (2,711)
Other (expense) income, net (4) (368) 1,654 2,388
Earnings from continuing operations before income taxes 97,956 76,735 176,411 135,008
Income tax provision (39,416) (28,634) (65,162) (55,754)
Earnings from continuing operations 58,540 48,101 111,249 79,254
Loss from discontinued operations, net of tax (1,068) (4,641) (2,012) (957)
Net earnings 57,472 43,460 109,237 78,297
Net loss (earnings) attributable to noncontrolling interests 818 (128) 2,690 (487)
Net earnings attributable to IAC shareholders 58,290 43,332 111,927 77,810
Comprehensive income attributable to IAC shareholders 70,199 9,319 111,909 74,693
IAC
        
Condensed Financial Statements, Captions [Line Items]        
Revenue 0 0 0 0
Costs and expenses:        
Cost of revenue (exclusive of depreciation shown separately below) 549 1,299 1,226 2,693
Selling and marketing expense 710 869 1,141 1,772
General and administrative expense 23,582 28,721 45,827 58,060
Product development expense 867 1,447 1,766 2,823
Depreciation 344 145 711 292
Amortization of intangibles 0 0 0 0
Total costs and expenses 26,052 32,481 50,671 65,640
Operating income (26,052) (32,481) (50,671) (65,640)
Equity in losses of unconsolidated affiliates 75,927 108,333 190,477 206,198
Interest expense (6,515) (277) (13,072) (555)
Other (expense) income, net 3,109 (104,077) (52,339) (208,564)
Earnings from continuing operations before income taxes 46,469 (28,502) 74,395 (68,561)
Income tax provision 12,889 76,475 39,544 147,328
Earnings from continuing operations 59,358 47,973 113,939 78,767
Loss from discontinued operations, net of tax (1,068) (4,641) (2,012) (957)
Net earnings 58,290 43,332 111,927 77,810
Net loss (earnings) attributable to noncontrolling interests 0 0 0 0
Net earnings attributable to IAC shareholders 58,290 43,332 111,927 77,810
Comprehensive income attributable to IAC shareholders 70,199 9,319 111,909 74,693
Guarantor Subsidiaries
        
Condensed Financial Statements, Captions [Line Items]        
Revenue 553,406 473,580 1,069,190 933,251
Costs and expenses:        
Cost of revenue (exclusive of depreciation shown separately below) 156,703 136,869 310,375 278,845
Selling and marketing expense 187,543 160,409 358,210 319,751
General and administrative expense 44,015 35,333 84,167 71,117
Product development expense 23,284 18,514 46,098 38,965
Depreciation 11,380 8,673 20,381 17,643
Amortization of intangibles 12,157 596 21,067 1,226
Total costs and expenses 435,082 360,394 840,298 727,547
Operating income 118,324 113,186 228,892 205,704
Equity in losses of unconsolidated affiliates 8,540 14,025 11,311 18,185
Interest expense (1,078) (1,065) (2,143) (2,130)
Other (expense) income, net (9,627) (3,072) (28,357) (1,791)
Earnings from continuing operations before income taxes 116,159 123,074 209,703 219,968
Income tax provision (41,871) (38,459) (75,454) (75,075)
Earnings from continuing operations 74,288 84,615 134,249 144,893
Loss from discontinued operations, net of tax 0 0 0 0
Net earnings 74,288 84,615 134,249 144,893
Net loss (earnings) attributable to noncontrolling interests 404 21 412 37
Net earnings attributable to IAC shareholders 74,692 84,636 134,661 144,930
Comprehensive income attributable to IAC shareholders 74,628 84,400 134,523 144,720
Non-Guarantor Subsidiaries
        
Condensed Financial Statements, Captions [Line Items]        
Revenue 247,164 208,759 474,666 391,011
Costs and expenses:        
Cost of revenue (exclusive of depreciation shown separately below) 116,570 100,489 218,849 181,389
Selling and marketing expense 59,052 50,353 131,125 109,258
General and administrative expense 35,925 25,580 69,253 48,918
Product development expense 9,901 6,950 21,305 13,244
Depreciation 5,312 3,407 9,960 6,405
Amortization of intangibles 5,980 5,209 11,148 11,620
Total costs and expenses 232,740 191,988 461,640 370,834
Operating income 14,424 16,771 13,026 20,177
Equity in losses of unconsolidated affiliates (132) (18,659) (223) (22,712)
Interest expense (65) (22) (106) (26)
Other (expense) income, net 6,514 106,781 82,350 212,743
Earnings from continuing operations before income taxes 20,741 104,871 95,047 210,182
Income tax provision (10,434) (66,650) (29,252) (128,007)
Earnings from continuing operations 10,307 38,221 65,795 82,175
Loss from discontinued operations, net of tax 4 718 11 258
Net earnings 10,311 38,939 65,806 82,433
Net loss (earnings) attributable to noncontrolling interests 414 (149) 2,278 (524)
Net earnings attributable to IAC shareholders 10,725 38,790 68,084 81,909
Comprehensive income attributable to IAC shareholders 5,227 16,287 46,494 65,560
Total Eliminations
        
Condensed Financial Statements, Captions [Line Items]        
Revenue (1,159) (1,727) (2,196) (3,050)
Costs and expenses:        
Cost of revenue (exclusive of depreciation shown separately below) (1,000) (1,353) (1,779) (2,323)
Selling and marketing expense (152) (379) (409) (743)
General and administrative expense (7) 5 (8) 16
Product development expense 0 0 0 0
Depreciation 0 0 0 0
Amortization of intangibles 0 0 0 0
Total costs and expenses (1,159) (1,727) (2,196) (3,050)
Operating income 0 0 0 0
Equity in losses of unconsolidated affiliates (85,413) (122,708) (202,734) (226,581)
Interest expense 0 0 0 0
Other (expense) income, net 0 0 0 0
Earnings from continuing operations before income taxes (85,413) (122,708) (202,734) (226,581)
Income tax provision 0 0 0 0
Earnings from continuing operations (85,413) (122,708) (202,734) (226,581)
Loss from discontinued operations, net of tax (4) (718) (11) (258)
Net earnings (85,417) (123,426) (202,745) (226,839)
Net loss (earnings) attributable to noncontrolling interests 0 0 0 0
Net earnings attributable to IAC shareholders (85,417) (123,426) (202,745) (226,839)
Comprehensive income attributable to IAC shareholders (79,855) (100,687) (181,017) (210,280)
IAC Consolidated
        
Condensed Financial Statements, Captions [Line Items]        
Revenue 799,411 680,612 1,541,660 1,321,212
Costs and expenses:        
Cost of revenue (exclusive of depreciation shown separately below) 272,822 237,304 528,671 460,604
Selling and marketing expense 247,153 211,252 490,067 430,038
General and administrative expense 103,515 89,639 199,239 178,111
Product development expense 34,052 26,911 69,169 55,032
Depreciation 17,036 12,225 31,052 24,340
Amortization of intangibles 18,137 5,805 32,215 12,846
Total costs and expenses 692,715 583,136 1,350,413 1,160,971
Operating income 106,696 97,476 191,247 160,241
Equity in losses of unconsolidated affiliates (1,078) (19,009) (1,169) (24,910)
Interest expense (7,658) (1,364) (15,321) (2,711)
Other (expense) income, net (4) (368) 1,654 2,388
Earnings from continuing operations before income taxes 97,956 76,735 176,411 135,008
Income tax provision (39,416) (28,634) (65,162) (55,754)
Earnings from continuing operations 58,540 48,101 111,249 79,254
Loss from discontinued operations, net of tax (1,068) (4,641) (2,012) (957)
Net earnings 57,472 43,460 109,237 78,297
Net loss (earnings) attributable to noncontrolling interests 818 (128) 2,690 (487)
Net earnings attributable to IAC shareholders 58,290 43,332 111,927 77,810
Comprehensive income attributable to IAC shareholders $ 70,199 $ 9,319 $ 111,909 $ 74,693