Common Stock Activity

12 Months Ended

Dec. 31, 2012

Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]

Common Stock Activity

Common Stock Activity

Treasury Stock and Share Activity

During the fourth quarter of 2011, the Company’s Board of Directors authorized a $150 million share repurchase plan, under which the Company repurchased 4.6 million shares of common stock for $75.0 million during the year ended December 31, 2011. During the second quarter of 2012, the Company repurchased an additional 2.9 million shares under this plan for an aggregate purchase price of $43.8 million. In July 2012, the Company repurchased an additional 2.0 million shares for an aggregate purchase price of $31.2 million, which completed the share repurchase plan. The repurchased shares are held in the Company’s treasury.

A summary of share activity for the periods indicated, which may contain slight summation differences due to rounding, is as follows (in thousands):

	Common Shares Outstanding		Treasury Shares
Balance as of December 31, 2010	78,215		—
Shares issued for stock option exercises	1,132
Shares issued for restricted stock awards	647
Other shares issued	39
Shares issued for acquisition of business	5,130
Common stock repurchases	(4,594	)	4,594
Balance as of December 31, 2011	80,569		4,594
Shares issued for stock option exercises	392
Shares issued for restricted stock awards	348
Other shares issued	13
Common stock repurchases	(4,874	)	4,874
Balance as of December 31, 2012	76,448		9,467