Intangible Assets , Net - Summary of Components of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross value	$ 19,670	$ 19,670
Accumulated amortization	16,522	15,837
Carrying value	3,148	3,833
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross value	18,900	18,900
Accumulated amortization	16,066	15,685
Carrying value	2,834	3,215
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross value	460	460
Accumulated amortization	215	73
Carrying value	245	387
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross value	310	310
Accumulated amortization	241	79
Carrying value	$ 69	$ 231

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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