Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value

The following table presents the Company’s financial assets and liabilities which are measured at fair values on a recurring basis as of March 31, 2014 and December 31, 2013 (in thousands).

	Fair Value			Level 1		Level 2		Level 3
March 31, 2014
Assets:
Repurchase agreements	$	164,924		$	—	$	164,924	$	—
Certificates of deposit		12,670			—		12,670		—
Total cash equivalents	$	177,604		$	—	$	177,604	$	—
Liabilities:
Acquisition related contingent consideration	$	(83,803	)	$	—	$	—	$	(83,803	)

	Fair Value			Level 1		Level 2		Level 3
December 31, 2013
Assets:
Repurchase agreements	$	162,126		$	—	$	162,126	$	—
Certificates of deposit		9,038			—		9,038		—
Total cash equivalents	$	171,164		$	—	$	171,164	$	—
Liabilities:
Acquisition related contingent consideration	$	(80,476	)	$	—	$	—	$	(80,476	)