Shareholders' Equity Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2012

Stockholders' Equity Note [Abstract]

Common stock and additional paid-in capital activity

The following table summarizes the common stock and additional paid-in capital activity during the three months ended March 31, 2012 (in thousands):

Common stock and additional paid-in capital, December 31, 2011	$	352,157
Income tax benefit of common stock options exercised	361
Common stock issued pursuant to stock-based compensation plans, net	765
Stock-based compensation expense	5,647
Repurchase of common stock	(25,389		)
Common stock and additional paid in capital, March 31, 2012	$	333,541