Intangible Assets , Net - Summary of Components of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross value	$ 19,670	$ 19,670
Accumulated amortization	16,058	15,837
Carrying value	3,612	3,833
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross value	18,900	18,900
Accumulated amortization	15,807	15,685
Carrying value	3,093	3,215
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross value	460	460
Accumulated amortization	120	73
Carrying value	340	387
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross value	310	310
Accumulated amortization	131	79
Carrying value	$ 179	$ 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
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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