Segment Information - Additional Information (Details)	3 Months Ended
Mar. 31, 2017 segment
Segment Reporting [Abstract]
Number of operating segments (segment)	3
Reconciliation of operating profit (loss) from segments to consolidated	Adjusted EBITDA represents net income before: income taxes; net income attributable to noncontrolling interest; interest expense, net; depreciation expense; amortization expense; share-based payment; severance and related costs; restructuring charges; transaction costs; shareholder transaction costs; legal matters expense, net; changes in fair value of contingent consideration related to acquisitions; and other non-cash (benefits) charges, net. Adjusted EBITDA is the most frequently used measure of each segment’s performance and is commonly used in setting performance goals.

Description of reconciling items for the reconciliation of the profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599

Name:	us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidated
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration