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Restructuring and other impairment charges - reconciliation of changes in accrued liabilities associated with restructuring program (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
2019 Footprint realignment plan
Restructuring Reserve [Roll Forward]
Balance, beginning	$ 0	$ 0
Subsequent accruals	13,753	0
Cash payments	(1,602)	0
Foreign currency translation	(281)	0
Balance, ending	11,870	0
2018 Footprint realignment plan
Restructuring Reserve [Roll Forward]
Balance, beginning	48,474	0
Subsequent accruals	(939)	54,993
Cash payments	(3,628)	(4,503)
Foreign currency translation	367	(2,016)
Balance, ending	44,274	48,474
2014 Footprint realignment plan
Restructuring Reserve [Roll Forward]
Balance, beginning	3,936	3,926
Subsequent accruals	313	830
Cash payments	(580)	(820)
Foreign currency translation	0	0
Balance, ending	$ 3,669	$ 3,936

X

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585

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X

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
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-Topic 420
-SubTopic 10
-Section S99
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X

- Definition

Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 1
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