Subsequent Events

12 Months Ended

Dec. 31, 2011

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On February 24, 2012, we announced that our Board had approved a new share repurchase program to repurchase from time to time up to $300.0 of our common stock (the “2012 share repurchase program”). The authorization for repurchases under the 2012 share repurchase program is in addition to any amounts remaining available for repurchase under the 2011 share repurchase program. See Note 6 for further information on the 2011 share repurchase program. We may effect repurchases under the 2012 share repurchase program through open market purchases, trading plans established in accordance with SEC rules, derivative transactions or other means.  The timing and amount of repurchases under the authorization will depend on market conditions and our other funding requirements. The 2012 share repurchase program has no expiration date.

In addition, on February 24, 2012, we announced the exercise of the Company's option to redeem for cash all remaining 4.25% Notes outstanding on the redemption date, which will be March 26, 2012. Under the terms of the 4.25% Notes, as a consequence of our exercise of our option to redeem, holders may elect to convert their 4.25% Notes into common stock at any time prior to the redemption date. The aggregate redemption price will be the $400.0 aggregate principal amount of the 4.25% Notes, plus accrued and unpaid interest to, but excluding, the redemption date, less the principal amount of any 4.25% Notes required to have been repurchased by us on March 15, 2012 or previously converted. See Note 3 for further information on the holders' repurchase and conversion rights.