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Fair Value Measurements (Tables)
 9 Months Ended
Sep. 30, 2013
Fair Value Disclosures [Abstract]  
Schedule Of Fair Value Of Assets
As of September 30, 2013 and December 31, 2012, the Company had the following assets measured at fair value on a recurring basis:
 
Fair Value Measurements at
Reporting Date Using
 
Total
 
Level 1
 
Level 2
 
Level 3
Assets (in thousands)
 
 
 
 
 
 
 
As of September 30, 2013
 
 
 
 
 
 
 
Money market funds, included in cash and cash equivalents
$
50,001

 
$
—

 
$
50,001

 
$
—

Mutual funds(1)
13,201

 
13,201

 
—

 
—

Money market funds(1)
2,135

 
—

 
2,135

 
—

 
$
65,337

 
$
13,201

 
$
52,136

 
$
—

As of December 31, 2012
 
 
 
 
 
 
 
Money market funds, included in cash and cash equivalents
$
20,001

 
$
—

 
$
20,001

 
$
—

Mutual funds(1)
11,884

 
11,884

 
—

 
—

Money market funds(1)
4,357

 
—

 
4,357

 
—

 
$
36,242

 
$
11,884

 
$
24,358

 
$
—

________________________ 
(1)
Included in Investments, employee benefit plans fair value on the consolidated balance sheets.