Share Repurchases	9 Months Ended
Sep. 30, 2012
Share Repurchases	Note 14: Share Repurchases In July 2011, our Board of Directors authorized a share repurchase program, which allows us to purchase up to $150.0 million of our common stock through open market repurchases, negotiated transactions, or other means, in accordance with applicable securities laws and other restrictions. For the three months ended September 30, 2012, we repurchased 0.7 million shares of our common stock under the program through prepaid variable share repurchase agreements for an aggregate cost of $25.0 million and an average price per share of $38.17. For the nine months ended September 30, 2012, we repurchased 2.1 million shares of our common stock under the program through prepaid variable share repurchase agreements for an aggregate cost of $75.0 million and an average price per share of $36.20. From the inception of the program to September 30, 2012, we have repurchased 3.7 million shares of our common stock under the program for an aggregate cost of $125.0 million and an average price per share of $33.72.

Share Repurchases

9 Months Ended

Sep. 30, 2012

Note 14: Share Repurchases

In July 2011, our Board of Directors authorized a share repurchase program, which allows us to purchase up to $150.0 million of our common stock through open market repurchases, negotiated transactions, or other means, in accordance with applicable securities laws and other restrictions. For the three months ended September 30, 2012, we repurchased 0.7 million shares of our common stock under the program through prepaid variable share repurchase agreements for an aggregate cost of $25.0 million and an average price per share of $38.17. For the nine months ended September 30, 2012, we repurchased 2.1 million shares of our common stock under the program through prepaid variable share repurchase agreements for an aggregate cost of $75.0 million and an average price per share of $36.20. From the inception of the program to September 30, 2012, we have repurchased 3.7 million shares of our common stock under the program for an aggregate cost of $125.0 million and an average price per share of $33.72.