CONSOLIDATED STATEMENT OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue	$ 516,884	$ 412,966	$ 1,462,501	$ 1,185,388
Costs and expenses:
Cost of revenue (exclusive of depreciation shown separately below)	188,642	147,933	542,832	419,720
Selling and marketing expense	153,296	118,800	426,764	367,487
General and administrative expense	84,628	74,757	241,472	223,638
Product development expense	21,556	16,892	56,558	46,053
Depreciation	17,484	14,598	43,373	47,016
Amortization of intangibles	4,538	2,302	9,195	10,232
Total costs and expenses	470,144	375,282	1,320,194	1,114,146
Operating income	46,740	37,684	142,307	71,242
Equity in losses of unconsolidated affiliates	(15,078)	(547)	(25,677)	(27,162)
Other income, net	4,308	819	10,697	6,158
Earnings from continuing operations before income taxes	35,970	37,956	127,327	50,238
Income tax benefit (provision)	32,003	(15,516)	6,444	(26,974)
Earnings from continuing operations	67,973	22,440	133,771	23,264
Loss from discontinued operations, net of tax	(3,922)	(4,795)	(8,358)	(12,108)
Net earnings	64,051	17,645	125,413	11,156
Net loss (earnings) attributable to noncontrolling interests	922	(136)	54	1,239
Net earnings attributable to IAC shareholders	64,973	17,509	125,467	12,395
Per share information attributable to IAC shareholders:
Basic earnings per share from continuing operations (in dollars per share)	$ 0.81	$ 0.22	$ 1.52	$ 0.22
Diluted earnings per share from continuing operations (in dollars per share)	$ 0.73	$ 0.21	$ 1.41	$ 0.22
Basic earnings per share (in dollars per share)	$ 0.77	$ 0.17	$ 1.43	$ 0.11
Diluted earnings per share (in dollars per share)	$ 0.69	$ 0.16	$ 1.32	$ 0.11
Non-cash compensation expense by function:
Total non-cash compensation expense	22,885	17,058	66,053	59,651
Cost of revenue
Non-cash compensation expense by function:
Total non-cash compensation expense	1,449	1,113	3,682	3,065
Selling and marketing expense
Non-cash compensation expense by function:
Total non-cash compensation expense	1,241	889	3,476	2,843
General and administrative expense
Non-cash compensation expense by function:
Total non-cash compensation expense	18,118	13,629	53,444	49,448
Product development expense
Non-cash compensation expense by function:
Total non-cash compensation expense	$ 2,077	$ 1,427	$ 5,451	$ 4,295