Fair Value Of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

Fair Value, Assets And Liabilities Measured On Recurring Basis

The following table summarizes the Company’s financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013:

			Fair Value Measurement Using
	Total Fair Value		(Level 1)		(Level 2)		(Level 3)
	(In thousands)
As of September 30, 2014:
Assets:
Investments in money market funds	$	161,942	$	161,942	$	—	$	—
Debt securities issued by the U.S. Treasury	1,248,969		1,248,969		—		—
Foreign currency forward contracts (1)	229		—		229		—
Total	$	1,411,140	$	1,410,911	$	229	$	—
Liabilities:
Contingent interest derivative on the Subordinated Convertible Debentures	$	25,051	$	—	$	—	$	25,051
Foreign currency forward contracts (2)	333		—		333		—
Total	$	25,384	$	—	$	333	$	25,051
As of December 31, 2013:
Assets:
Investments in money market funds	$	246,492	$	246,492	$	—	$	—
Debt securities issued by the U.S. Treasury	1,409,062		1,409,062		—		—
Foreign currency forward contracts (1)	141		—		141		—
Total	$	1,655,695	$	1,655,554	$	141	$	—
Liabilities:
Contingent interest derivative on the Subordinated Convertible Debentures	$	29,004	$	—	$	—	$	29,004
Foreign currency forward contracts (2)	131		—		131		—
Total	$	29,135	$	—	$	131	$	29,004

(1) Included in Income taxes receivable and other current assets

(2) Included in Accounts payable and accrued liabilities

Changes In Fair Value Measurement Of Level 3 Items

The following table summarizes the change in the fair value of the Company’s contingent interest derivative on the Subordinated Convertible Debentures during the three and nine months ended September 30, 2014 and 2013:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014			2013
	(In thousands)
Beginning balance	$	18,489	$	15,640	$	29,004		$	11,203
Unrealized loss (gain)	6,562		5,286		(3,953		)	9,723
Ending balance	$	25,051	$	20,926	$	25,051		$	20,926