Goodwill and Other Intangibles - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Intangible Assets [Line Items]
Amortization of other intangible assets	$ 5,737	$ 8,066	$ 10,700
Minimum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	5 years
Maximum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	25 years
Customer Lists and Relationships
Other Intangible Assets [Line Items]
Amortization of other intangible assets	2,839	4,332
Customer Lists and Relationships | Minimum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	15 years
Customer Lists and Relationships | Maximum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	25 years
Trade Names
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	11 years
Amortization of other intangible assets	824	995
Patents and Technology
Other Intangible Assets [Line Items]
Amortization of other intangible assets	388	797
Patents and Technology | Minimum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	17 years
Patents and Technology | Maximum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	20 years
Land Use Rights
Other Intangible Assets [Line Items]
Amortization of other intangible assets	42	166
Manufacturing Contracts and Supply/Service Agreements
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	6 years
Amortization of other intangible assets	368	647
Other
Other Intangible Assets [Line Items]
Amortization of other intangible assets	1,276	1,129
Other | Minimum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	5 years
Other | Maximum
Other Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	15 years
Antioxidant, Ibuprofen and Propofol Assets - Discontinued Operations
Other Intangible Assets [Line Items]
Amortization of other intangible assets	$ 900	$ 3,500	$ 3,400