Segment Reporting - Additional Information (Details) - segment	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Number of reportable segments	3	3
Minimum
Segment Reporting Information [Line Items]
Product sales to consolidated sales (more than) (as a percent)		99.00%

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration