Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Cash and Cash Equivalents and Investments

Cash and cash equivalents and investments consist of the following:

	June 30, 2013		December 31, 2012
	(In Thousands)
Cash and cash equivalents
Cash	$	20,552	$	15,129
Money market funds	62,281		62,278
Total cash and cash equivalents	82,833		77,407
Long-term investments
U.S. Treasury Bills	2,600		2,599
Total cash and cash equivalents and investments	$	85,433	$	80,006