Segment, Concentration and Geographical Information - Additional Information (Detail)	12 Months Ended
Dec. 31, 2021 Customer Business_Unit ServiceProvider Location	Dec. 31, 2020 Customer ServiceProvider Location
Revenue, Major Customer [Line Items]
Number of primary business units \| Business_Unit	1
Number of customers concentrated \| Customer	2	1
Number of service providers concentrated \| ServiceProvider	2	1
Number of geographic locations \| Location	3	3
Customer Concentration Risk [Member] \| Revenues [Member] \| Minimum [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	10.00%	10.00%
Customer Concentration Risk [Member] \| Revenues [Member] \| Customer One [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	56.00%
Customer Concentration Risk [Member] \| Revenues [Member] \| Customer Two [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	24.00%
Customer Concentration Risk [Member] \| Revenues [Member] \| One Customer [Member]
Revenue, Major Customer [Line Items]
Concentration percentage		81.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer One [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	42.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer Two [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	27.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| One Customer [Member]
Revenue, Major Customer [Line Items]
Concentration percentage		91.00%
Supplier concentration risk [Member] \| Purchase [Member] \| Minimum [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	10.00%	10.00%
Supplier concentration risk [Member] \| Service Provider One [Member] \| Purchase [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	36.00%
Supplier concentration risk [Member] \| Service Provider One [Member] \| Accounts payable [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	15.00%
Supplier concentration risk [Member] \| Service Provider Two [Member] \| Purchase [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	13.00%
Supplier concentration risk [Member] \| Service Provider Two [Member] \| Accounts payable [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%
Supplier concentration risk [Member] \| Service Provider [Member] \| Accounts payable [Member]
Revenue, Major Customer [Line Items]
Concentration percentage		10.00%

Concentration risk number of customers responsible for concentration.

No definition available.

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- Definition

Concentration risk number of service providers responsible for concentration.

+ References

No definition available.

+ Details

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- Definition

Number of geographic locations where the company operates.

+ References

No definition available.

+ Details

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
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-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13537-108611

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

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