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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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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 of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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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.

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Remaining amortization period 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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The amount of an adjustment to a previously reported goodwill impairment charge, which will be recognized in the subsequent reporting period.

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Goodwill and Other Intangibles - Additional Information (Detail) - USD ($)			12 Months Ended
	Oct. 02, 2017	Oct. 02, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite Lived Intangible Assets [Line Items]
Goodwill impairment adjustment	$ 0	$ 0
Amortization of Intangible Assets			$ 1,000,000	$ 1,000,000	$ 1,200,000
2018			1,000,000
2019			1,000,000
2020			900,000
2021			900,000
2022			$ 900,000
Remaining amortization period			16 years 9 months 18 days
Patents [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			8 years
Land Use Rights [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			58 years 4 months 24 days
Trademark [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			9 years 1 month 6 days
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			13 years 10 months 24 days
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			12 years 3 months 18 days
Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Amortization period of intangible assets			1 year
Minimum [Member] \| Actual [Member]
Finite Lived Intangible Assets [Line Items]
Amortization period of intangible assets			4 years
Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Amortization period of intangible assets			20 years
Maximum [Member] \| Actual [Member]
Finite Lived Intangible Assets [Line Items]
Amortization period of intangible assets			82 years