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Accounting Policies - Estimated Useful Lives of Major Classes of Assets (Detail)	12 Months Ended
	Dec. 31, 2020
Technology [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	10 years
Technology [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	17 years
Customer lists [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	10 years
Customer lists [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	15 years
Brand Names [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	5 years
Brand Names [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	10 years
Product Rights [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	9 years
Product Rights [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	10 years
Internally Developed Software [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	3 years
Internally Developed Software [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	5 years
Marketing Related [Member]
Other Intangible Assets [Line Items]
finite-lived intangible asset, useful life	11 years

X

- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_IntellectualPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: