Goodwill

3 Months Ended

Mar. 31, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill

4. Goodwill

The following table sets forth the carrying amount of goodwill for each segment as of March 31, 2016 and December 31, 2015 (in thousands):

	Clinical			Commercial		Total
Net goodwill at December 31, 2015	$	382,215		$	513,154	$	895,369
Foreign currency translation		(1	)		1,397		1,396
Net goodwill at March 31, 2016	$	382,214		$	514,551	$	896,765

As of March 31, 2016 and December 31, 2015, the Company had accumulated goodwill impairment losses of $478.3 million.