BUSINESS COMBINATION (Tables)

9 Months Ended

Sep. 30, 2013

Business Combinations [Abstract]

Schedule of pro forma financial information

	Three Months Ended September 30, 2012		Nine Months Ended September 30, 2012
	(In thousands, except per share data)
Revenue	$	740,086	$	2,110,653
Net earnings attributable to IAC shareholders	$	43,909	$	125,722
Basic earnings per share attributable to IAC shareholders	$	0.50	$	1.47
Diluted earnings per share attributable to IAC shareholders	$	0.46	$	1.35