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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Schedule Of Assets And Liabilities Carried At Fair Value Measured On A Recurring Basis

The following tables provide the assets and liabilities carried at fair value measured on a recurring basis as of March 31, 2014 and December 31, 2013 (in thousands):



	Assets at Fair Value as of March 31, 2014
Asset Category	Level 1				Level 2			Level 3			Total
Cash and cash equivalents ⁽¹⁾	$	406,668			—			—			$	406,668
Restricted cash ⁽²⁾	6,988				—			—			6,988
Total	$	413,656			—			—			$	413,656



	Assets at Fair Value as of December 31, 2013
Asset Category	Level 1				Level 2			Level 3			Total
Cash and cash equivalents ⁽¹⁾	$	439,813			—			—			$	439,813
Restricted cash ⁽²⁾	6,934				—			—			6,934
Total	$	446,747			—			—			$	446,747

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(1)	Cash and cash equivalents include money market funds with original maturity dates of three months or less, which are Level 1 assets. At March 31, 2014 and December 31, 2013, we had $147.9 million and $147.7 million, respectively, in money market funds.


(2)	Restricted cash is classified as “Prepaid expenses and other” in our Condensed Consolidated Balance Sheets.