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Shareholders' Equity
 9 Months Ended
Sep. 30, 2013
Stockholders' Equity Note [Abstract]  
Shareholders' Equity
Shareholders’ equity

We reinstated our quarterly cash dividend in July 2013. During the three months ended September 30, 2013, we declared two cash dividends of $0.05 per common share; the first paid in August 2013, the second in October 2013.

In July 2013, we increased our common share repurchase authorization to $352.3 million of common shares. During the three months ended September 30, 2013, we repurchased 5.3 million shares under the repurchase authorization for a total of $83.0 million. Such repurchases are reflected as a reduction of common stock and retained earnings. At September 30, 2013, we had remaining authorization to repurchase $269.3 million of common shares.

Under our stock-based compensation plans, we accept shares as payment under certain conditions related to stock option exercises and vesting of restricted stock, generally related to the payment of minimum tax obligations. During the nine months ended September 30, 2013 and 2012, employees surrendered shares valued at $6.9 million and $1.0 million, respectively, under these plans. Such share transactions are excluded from the above noted stock repurchase authorization.