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Commitments and Contingencies - Reconciliation of Changes in Accrued Warranty Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Loss Contingency [Abstract]
Balance at beginning of year	$ 4,514	$ 5,382
Warranty claims paid	(584)	(905)
Warranty expense for products shipped during the current period	2,370	2,678
Adjustments to warranty estimates from prior periods	(1,660)	(608)
Acquisition of business	21
Reclassification to liabilities held for sale		(1,884)
Adjustments due to currency translation	(65)	(149)
Balance at end of year	$ 4,596	$ 4,514

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- Definition

Product warranty accrual expense income.

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- Definition

Product warranty accrual reclassification to liabilities held for sale.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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- Definition

Amount of increase in the standard and extended product warranty accrual from a business acquisition.

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-Publisher FASB
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-Topic 460
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- Definition

Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty.

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Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties.

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the standard and extended product warranty accrual.

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