Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

+ Details

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- Definition

Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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Balance Type:	credit
Period Type:	instant

- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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Period Type:	instant

- Details

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- Details

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Summary of Measurement Period Adjustments Made to Preliminary Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 230,214		$ 224,391
Flowchem Holdings LLC
Business Acquisition [Line Items]
Deferred tax liability	24,484	$ 24,484	25,046
Goodwill	204,717	204,717	199,346
Flowchem Holdings LLC \| Measurement Period Adjustment
Business Acquisition [Line Items]
Deferred tax liability		(562)
Goodwill		5,371
Flowchem Holdings LLC \| Customer relationships
Business Acquisition [Line Items]
Intangible assets	205,467	205,467	214,882
Flowchem Holdings LLC \| Customer relationships \| Measurement Period Adjustment
Business Acquisition [Line Items]
Intangible assets		(9,415)
Flowchem Holdings LLC \| Trade names and trademark
Business Acquisition [Line Items]
Intangible assets	32,353	32,353	28,951
Flowchem Holdings LLC \| Trade names and trademark \| Measurement Period Adjustment
Business Acquisition [Line Items]
Intangible assets		3,402
Flowchem Holdings LLC \| Proprietary manufacturing process
Business Acquisition [Line Items]
Intangible assets	$ 39,323	39,323	$ 39,245
Flowchem Holdings LLC \| Proprietary manufacturing process \| Measurement Period Adjustment
Business Acquisition [Line Items]
Intangible assets		$ 78