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Other Intangible Assets - Additional Information (Detail)		1 Months Ended	12 Months Ended
	Aug. 09, 2017 USD ($)	Aug. 31, 2017 USD ($) Entity	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2008 USD ($)	Mar. 31, 2017 USD ($)	Oct. 27, 2014 USD ($)	Nov. 04, 2013 USD ($)	Aug. 30, 2013 USD ($)	Jun. 30, 2007 USD ($)
Finite-Lived Intangible Assets [Line Items]
Amortization expense			$ 28,300,000	$ 24,200,000	$ 21,000,000
Cash paid for acquisition			4,200,000	0	0
Intangible asset			295,800,000	248,600,000
Cost of goods, amortization			4,300,000	4,300,000	$ 4,400,000
Selling, General and Administrative Expenses [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			7,600,000	7,300,000
Brand Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			1,200,000	1,200,000
Intangible asset			8,900,000	8,900,000
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			3,400,000	3,400,000
Intangible asset			55,100,000	55,100,000
Customer and Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			10,700,000	6,800,000
Intangible asset			$ 127,500,000	85,100,000
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Assets being amortized duration			2 years
Intangible assets, recognized			$ 1,500,000
Intangible asset			4,100,000	4,100,000
Non-Compete Agreements [Member] | Selling, General and Administrative Expenses [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			700,000	900,000
Product Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset			34,000,000	34,000,000
Marketing Related [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			900,000	900,000
Intangible asset			$ 22,100,000	22,100,000							$ 28,400,000
Contract provisions offset against intangible assets						$ 6,300,000
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Assets being amortized duration			5 years
Residual value			$ 0
Intangible asset			$ 41,200,000	36,400,000
Internally Developed Software [Member] | Existing Information System Platform [Member]
Finite-Lived Intangible Assets [Line Items]
Assets being amortized duration			5 years
Residual value			$ 0
Intangible asset			$ 36,700,000	36,400,000
Internally Developed Software [Member] | United States [Member] | Existing Information System Platform [Member]
Finite-Lived Intangible Assets [Line Items]
Number of reporting entities | Entity		2
Intangible asset implementation cost		$ 300,000
Independence Acquisition [Member] | Brand Names [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets								$ 6,000,000
Assets being amortized duration			10 years
Date of acquisition			Oct. 27, 2014
Residual value			$ 0
Independence Acquisition [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets								26,000,000
Assets being amortized duration			15 years
Date of acquisition			Oct. 27, 2014
Residual value			$ 0
Independence Acquisition [Member] | Customer and Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets								29,200,000
Assets being amortized duration			10 years
Date of acquisition			Oct. 27, 2014
Residual value			$ 0
Independence Acquisition [Member] | Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets								$ 2,600,000
Assets being amortized duration			3 years
Date of acquisition			Oct. 27, 2014
Residual value			$ 0
Bachman [Member] | Brand Names [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets									$ 2,900,000
Assets being amortized duration			5 years
Date of acquisition			Nov. 04, 2013
Residual value			$ 0
Bachman [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets									8,500,000
Assets being amortized duration			15 years
Date of acquisition			Nov. 04, 2013
Residual value			$ 0
Bachman [Member] | Customer and Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets									$ 14,500,000
Assets being amortized duration			14 years 6 months
Date of acquisition			Nov. 04, 2013
Residual value			$ 0
Strata [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Assets being amortized duration			16 years 6 months
Date of acquisition			Dec. 24, 2012
Residual value			$ 0
Intangible assets, recognized			18,300,000
Strata [Member] | Customer and Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets			$ 28,200,000
Assets being amortized duration			11 years 6 months
Date of acquisition			Dec. 24, 2012
Residual value			$ 0
Huntsman Holland B.V. [Member] | Customer and Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Assets being amortized duration			10 years
Date of acquisition			Aug. 09, 2017
Residual value			$ 0
Huntsman Holland B.V. [Member] | Customer and Distributor Relationships [Member] | Americas and Asia Pacific [Member]
Finite-Lived Intangible Assets [Line Items]
Cash paid for acquisition	$ 4,200,000
Finetex [Member] | Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Assets being amortized duration			13 years
Residual value			$ 0
Intangible assets, recognized			$ 4,200,000
Huntsman [Member] | Customer and Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets							$ 33,500,000
Assets being amortized duration			10 years
Date of acquisition			Dec. 30, 2016
Residual value			$ 0
Chemsil [Member] | Product Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Allocation of purchase price to other intangible assets										$ 34,000,000
Assets being amortized duration			9 years
Amortization expense			$ 3,800,000	$ 3,800,000
Date of acquisition			Aug. 30, 2013
Residual value			$ 0

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Intangible assets implementation cost.

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The aggregate expected value at the end of their useful life of a major finite-lived intangible asset class acquired during the period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of expense recognized in the current period that reflects the allocation of the costs of intangible assets over the expected benefit period of such assets. This element applies only to intangible assets used in the production of goods.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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