Intangible Assets - Summary of Changes in Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Intangible Assets Net Excluding Goodwill [Abstract]
Balance at beginning of the period	$ 5,431	$ 6,654	$ 6,204	$ 7,217
Amortization of intangible assets	(89)	(69)	(279)	(444)
Other, primarily impact from changes in foreign currency exchange rates	(372)	(148)	(955)	(336)
Balance at end of the period	$ 4,970	$ 6,437	$ 4,970	$ 6,437

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
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-URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

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