Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Cash and Cash Equivalents and Investments

Cash and cash equivalents and investments consist of the following:

	March 31, 2013		December 31, 2012
	(In Thousands)
Cash and cash equivalents
Cash	$	12,669	$	15,129
Money market funds	62,279		62,278
Total cash and cash equivalents	74,948		77,407
Long-term investments
U.S. Treasury Bills	2,600		2,599
Total cash and cash equivalents and investments	$	77,548	$	80,006