Shareholders' Equity Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2013

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 six months ended June 30, 2013 (in thousands):

Common stock and additional paid-in capital, December 31, 2012	$	171,546
Excess income tax benefit of common stock options exercised	(71		)
Common stock issued pursuant to stock-based compensation plans, net	92
Stock-based compensation costs	13,610
Repurchase of common stock	(116,830		)
Common stock and additional paid-in capital, June 30, 2013	$	68,347