Stockholder's Equity

3 Months Ended

Mar. 31, 2012

Stockholder's Equity [Abstract]

Stockholder's Equity

Note 6. Stockholder's Equity

Preferred Stock

The Company's Board of Directors has the authority, without action by the holders of common stock, to issue up to 5,000,000 shares of preferred stock from time to time in such series and with such preference and rights as it may designate.

Share Repurchase Program

On March 9, 2011, our Board of Directors authorized the use of up to $150 million to repurchase shares of our common stock and/or our 2% Senior Convertible Notes due 2017. On September 14, 2011, our Board of Directors authorized the use of up to an additional $200 million to repurchase shares of our common stock and/or our 2% Senior Convertible Notes due 2017. Purchases may be made by means of open market transactions, block transactions, privately negotiated purchase transactions or other techniques from time to time. During 2011, we reacquired approximately 9.2 million shares at a cost of approximately $169.7 million or an average price of $18.52 per share.

During the first quarter of 2012, we reacquired approximately 1.6 million shares at a cost of approximately $50.0 million or an average price of $31.13 per share.