SHAREHOLDERS' EQUITY

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

SHAREHOLDERS' EQUITY

(9) SHAREHOLDERS’ EQUITY

The following table details activity in our common stock:

	Years ended December 31,
	2013				2012				2011
	Shares		Amount		Shares		Amount		Shares			Amount
Stock option exercises		1,443	$	18,289		1,218	$	12,443		582		$	3,553
Purchases of common stock		—		—		—		—		(3,004	)		(71,802	)
Employee stock plan purchases		64		3,542		81		2,641		100			2,045
Shares issued for acquisition		—		—		60		2,815		—			—

As of February 19, 2014 we had authorization from our board of directors to repurchase up to 1.7 million additional shares of our common stock.