100 The following is a rollforward of the redeemable noncontrolling interest: Balance at December 31, 201 1 — Procables acquisition 18.3 Net Income (Loss) — Foreign currency translation 0.3 Balance at December 31, 2012 18.6 16. Earnings Per Common Shar e All outstanding unvested share-based payment awards that contain rights to non-forfeitable dividends are considered participating securities in undistributed earnings along with common shareholders. The Company applies the two-class method of computing basic and diluted earnings per share. Historically and for the years ended December 31, 2012 , 201 1 and 2010 , the Company did not declare, pay or otherwise accrue a dividend payable to the holders of the Company’ s common stock or holders of unvested share-based payment awards (restricted stock). There was no impact on the Company’ s earnings per common share — assuming dilution computation. A reconciliation of the numerator and denominator of earnings per common share-basic to earnings per common share-assuming dilution is as follows (in millions, except per share data):   Year Ended   Dec 31, 2012 Dec 31, 2011 Dec 31, 2010 Earnings per share — basic:       Net income attributable to Company common shareholders — for basic EPS computation (1) $ 3.7 $ 65.7 $ 61.4 W eighted average shares outstanding for basic EPS computation (2,3) 49.7 51.9 52.1 Earnings per common share — basic (3) $ 0.07 $ 1.27 $ 1.18 Earnings per share — assuming dilution:       Net income attributable to Company common shareholders $ 3.7 $ 65.7 $ 61.4 Add: Preferred stock dividends on convertible stock 0.3 0.3 0.3 Net income attributable to Company common shareholders — for diluted EPS computation (1) $ 4.0 $ 66.0 $ 61.7 Weighted average shares outstanding including nonvested shares 49.7 51.9 52.1 Dilutive effect of convertible bonds — 0.6 — Dilutive effect of stock options and restricted stock units 1.0 0.8 0.6 Dilutive effect of assumed conversion of preferred stock 0.4 0.4 0.4 W eighted average shares outstanding for diluted EPS computation (2) 51.1 53.7 53.1 Earnings per common share — assuming dilution $ 0.08 $ 1.23 $ 1.16 (1) Numerator (2) Denominator (3) Under the two class method, Earnings per share — basic reflects undistributed earnings per share for both common stock and unvested share-based payment awards (restricted stock). The Company was authorized by its Board of Directors on October 29, 2012 to renew its stock repurchase program that expired on October 28, 201 1 up to $125 million of common stock. The stock repurchase program will be ef fective for one year . Stock purchases under this program may be made through open market and privately negotiated transactions at times and in such amounts as deemed appropriate by a special committee appointed by the Board. The Company purchased $1.2 million or 50,000 common shares at an average price of $24.80 per share during the year ended December 31, 2012 . Under this same program, the Company purchased $62.5 million , or 2.5 million common shares at an average price of $24.72 , in the fourth quarter of 201 1 . In 2010 the Company did not have a stock repurchase program and as a result, did not repurchase any of its common stock. As of December 31, 2012 , 201 1 and 2010 , there were approximately 553 thousand , 506 thousand , and 404 thousand stock options excluded from the earnings per common share — assuming dilution computation because their impact was anti-dilutive, respectively . T able of Contents