Stockholders' Equity

12 Months Ended

Dec. 31, 2012

Stockholders' Equity [Abstract]

Stockholders' Equity

12. Stockholders’ Equity

Stock Repurchase Program. We currently have a stock repurchase program, approved by our Board of Directors, authorizing us to repurchase shares of our common stock from time-to-time as market and business conditions warrant (the “Stock Repurchase Program”).

As of December 31, 2012, a summary of the shares repurchased under the Stock Repurchase Program is as follows (in thousands, except per share amounts):

	2012		2011		2010		2009		1999-2008		Total
Shares repurchased		823		750		1,500		250		29,046		32,369
Total amount paid	$	13,349	$	9,930	$	29,340	$	3,782	$	700,440	$	756,841
Weighted-average price per share	$	16.23	$	13.24	$	19.56	$	15.13	$	24.11	$	23.38

As of December 31, 2012, the total remaining number of shares available for repurchase under the Stock Repurchase Program totaled approximately 2.6 million shares.

In addition to the above mentioned stock repurchases, during 2012, 2011, and 2010, we repurchased and then cancelled approximately 197,000 shares, 232,000 shares, and 232,000 shares for $3.2 million, $4.4 million, and $4.7 million, respectively, of common stock from our employees in connection with minimum tax withholding requirements resulting from the vesting of restricted stock under our stock incentive plans.

Convertible Debt Securities. Under GAAP, convertible debt securities that may be settled in cash upon conversion (including partial cash settlement) must be separated into their liability and equity components at initial recognition by: (i) recording the liability component at the fair value of a similar liability that does not have an associated equity component; and (ii) attributing the remaining proceeds from the issuance to the equity component. The carrying amount of the equity component related to our convertible debt securities outstanding, included within additional paid-in capital, net of tax, as of December 31, 2012 and 2011 was $22.9 million.