v2.4.0.8
EARNINGS PER SHARE (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Numerator: Basic                      
Earnings from continuing operations $ 78,829 $ 91,721 $ 58,540 $ 52,709 $ 44,408 $ 46,185 $ 48,101 $ 31,153 $ 281,799 $ 169,847 $ 175,569
Net loss (earnings) attributable to noncontrolling interests                 2,059 (1,530) 2,656
Earnings (loss) from continuing operations attributable to IAC shareholders                 283,858 168,317 178,225
Earnings (loss) from discontinued operations, net of tax attributable to IAC shareholders 24 3,914 (1,068) (944) (2,470) (5,624) (4,641) 3,684 1,926 (9,051) (3,992)
Net earnings attributable to IAC shareholders 76,917 96,940 58,290 53,637 40,739 40,717 43,332 34,478 285,784 159,266 174,233
Numerator: Diluted                      
Earnings (loss) from continuing operations 78,829 91,721 58,540 52,709 44,408 46,185 48,101 31,153 281,799 169,847 175,569
Net loss (earnings) attributable to noncontrolling interests                 2,059 (1,530) 2,656
Earnings (loss) from continuing operations attributable to IAC shareholders                 283,858 168,317 178,225
Earnings (loss) from discontinued operations, net of tax attributable to IAC shareholders 24 3,914 (1,068) (944) (2,470) (5,624) (4,641) 3,684 1,926 (9,051) (3,992)
Net earnings (loss) attributable to IAC shareholders                 $ 285,784 $ 159,266 $ 174,233
Denominator: Basic                      
Weighted average basic shares outstanding                 83,480 86,247 86,755
Denominator: Diluted                      
Weighted average basic shares outstanding                 83,480 86,247 86,755
Dilutive securities including stock options, warrants and RSUs (in shares)                 3,262 6,842 7,566
Denominator for earnings per share-weighted average shares (in shares)                 86,742 93,089 94,321
Earnings per share attributable to IAC shareholders: Basic                      
Earnings per share from continuing operations (in dollars per share) $ 0.93 $ 1.12 $ 0.71 $ 0.65 $ 0.49 $ 0.52 $ 0.56 $ 0.37 $ 3.40 $ 1.95 $ 2.05
Discontinued operations, net of tax (in dollars per share)                 $ 0.02 $ (0.10) $ (0.04)
Earnings per share (in dollars per share) $ 0.93 $ 1.17 $ 0.70 $ 0.64 $ 0.46 $ 0.46 $ 0.50 $ 0.42 $ 3.42 $ 1.85 $ 2.01
Earnings (loss) per share attributable to IAC shareholders: Diluted                      
Earnings per share from continuing operations (in dollars per share) $ 0.88 $ 1.08 $ 0.69 $ 0.62 $ 0.46 $ 0.49 $ 0.52 $ 0.34 $ 3.27 $ 1.81 $ 1.89
Discontinued operations, net of tax (in dollars per share)                 $ 0.02 $ (0.10) $ (0.04)
Earnings per share (in dollars per share) $ 0.88 $ 1.13 $ 0.67 $ 0.61 $ 0.43 $ 0.43 $ 0.47 $ 0.38 $ 3.29 $ 1.71 $ 1.85