Prepaid Expenses, Supplies, Other Assets and Accrued and Other Liabilities - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Other Assets Accrued Liabilities And Other Liabilities [Line Items]
Inventories (Cosmedicine)	$ 118.2	$ 101.2
Cosmedicine | Prepaid Expenses, Supplies, and Other Current Assets
Other Assets Accrued Liabilities And Other Liabilities [Line Items]
Inventories (Cosmedicine)	0.1
Cosmedicine | Prepaid Expenses, Supplies, and Other Current Assets | Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations
Other Assets Accrued Liabilities And Other Liabilities [Line Items]
Inventories (Cosmedicine)	$ 0.1