Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

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

The following tables present information about the Company’s assets and liabilities measured at fair value on a recurring basis (in thousands):

	June 30, 2013
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	1,092,522	$	643,140	$	449,382	$	—
Marketable securities	133,631		—		133,631		—
Derivatives	11,214		—		11,214		—
	$	1,237,367	$	643,140	$	594,227	$	—
Liabilities:
Derivatives	$	570	$	—	$	570	$	—
	December 31, 2012
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	852,979	$	690,691	$	162,288	$	—
Marketable securities	135,634		—		135,634		—
Derivatives	317		—		317		—
	$	988,930	$	690,691	$	298,239	$	—
Liabilities:
Derivatives	$	7,920	$	—	$	7,920	$	—
	July 1, 2012
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	764,147	$	578,567	$	185,580	$	—
Marketable securities	135,848		—		135,848		—
Derivatives	8,879		—		8,879		—
	$	908,874	$	578,567	$	330,307	$	—
Liabilities:
Derivatives	$	2,042	$	—	$	2,042	$	—