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NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS | NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO STOCKHOLDERS Basic net income (loss) per common share attributable to Altice USA stockholders is computed by dividing net income (loss) attributable to Altice USA stockholders by the weighted average number of common shares outstanding during the period. Diluted income per common share attributable to Altice USA stockholders reflects the dilutive effects of stock options. For such awards that are performance based, the diluted effect is reflected upon the achievement of the performance criteria. Diluted net loss per common share attributable to Altice USA excludes the effects of common stock equivalents as they are anti-dilutive. Anti-dilutive shares (options whose exercise price exceeds the average market price of the Company's common stock during the period) totaling approximately 5,841,000 shares, have been excluded from diluted weighted average shares outstanding when calculating diluted net income per share attributable to Altice USA stockholders for the three months ended September 30, 2018. In addition, approximately 73,000 performance based options for the three months ended September 30, 2018, issued pursuant to the Company's employee stock plan have also been excluded from the diluted weighted average shares outstanding as the performance criteria on these awards had not yet been satisfied for the respective period. The weighted average number of shares used to compute basic and diluted net loss per share for the nine months ended September 30, 2017 reflect the retroactive impact of certain organizational transactions that occurred prior to the Company's IPO.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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