CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue	$ 938,719	$ 1,111,341	$ 2,817,926	$ 3,307,201
Operating costs and expenses:
Cost of revenue (exclusive of depreciation shown separately below)	257,811	342,353	797,278	1,038,360
Selling and marketing expense	338,262	407,355	1,017,895	1,224,606
General and administrative expense	185,258	210,507	607,925	701,749
Product development expense	78,262	79,714	243,420	250,899
Depreciation	26,445	33,776	96,466	136,231
Amortization of intangibles	36,355	61,373	109,793	170,162
Goodwill impairment	0	9,000	0	9,000
Total operating costs and expenses	922,393	1,144,078	2,872,777	3,531,007
Operating income (loss)	16,326	(32,737)	(54,851)	(223,806)
Interest expense	(39,701)	(40,157)	(118,934)	(117,406)
Unrealized (loss) gain on investment in MGM Resorts International	(346,272)	(463,421)	(361,805)	209,057
Other income, net	16,363	25,455	105,861	60,189
Loss before income taxes	(353,284)	(510,860)	(429,729)	(71,966)
Income tax benefit	115,839	118,838	95,789	3,633
Net loss	(237,445)	(392,022)	(333,940)	(68,333)
Net (earnings) loss attributable to noncontrolling interests	(6,274)	1,484	(6,980)	6,525
Net loss attributable to IAC shareholders	$ (243,719)	$ (390,538)	$ (340,920)	$ (61,808)
Per share information attributable to IAC common stock and Class B common stock shareholders:
Basic loss per share (USD per share)	$ (2.93)	$ (4.72)	$ (4.10)	$ (0.74)
Diluted loss per share (USD per share)	$ (2.93)	$ (4.72)	$ (4.10)	$ (0.74)
Stock-based compensation expense by function:
Stock-based compensation expense	$ 28,231	$ 28,962	$ 86,237	$ 88,096
Cost of revenue
Stock-based compensation expense by function:
Stock-based compensation expense	504	553	1,757	1,105
Selling and marketing expense
Stock-based compensation expense by function:
Stock-based compensation expense	1,443	2,552	5,456	6,493
General and administrative expense
Stock-based compensation expense by function:
Stock-based compensation expense	23,737	22,849	71,806	69,733
Product development expense
Stock-based compensation expense by function:
Stock-based compensation expense	$ 2,547	$ 3,008	$ 7,218	$ 10,765