Summary of Assets Measured at Estimated Fair Value on Nonrecurring Basis Based on Fair Value Hierarchy (Detail) - Fair Value, Measurements, Nonrecurring Basis - Level 3 $ in Millions	Dec. 31, 2016 USD ($)
RANA
Estimated Fair Value, Assets
Goodwill	$ 33.6
Prepaid Expenses, Supplies, and Other Current Assets \| Cosmedicine
Estimated Fair Value, Assets
Inventories	$ 0.1

Fair value portion of asset representing the 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 820
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

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