Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Business Combinations - Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Aug. 17, 2015	Nov. 12, 2014
Business Combinations
Goodwill not deductible for tax	$ 639,484	$ 639,188
Acquisitions
Business Combinations
Goodwill not deductible for tax	639,500
CBR Acquisition Holdings Corp
Business Combinations
Goodwill not deductible for tax	441,400		$ 441,371
Lumara Health
Business Combinations
Goodwill not deductible for tax	$ 198,100			$ 198,113