Subsequent Event - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Oct. 01, 2021	Sep. 30, 2021
Common Class A [Member]
Subsequent Event [Line Items]
Common stock par value		$ 0.001
Subsequent Event [Member] \| Apptness Media Group, LLC [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses	$ 17,934
Minimum lock up period	18 months
Indemnity hold-back amount	$ 1,750
Earn-out consideration payable	$ 22,000
Percentage of consideration payable in cash	50.00%
Percentage of consideration payable in shares	50.00%
Subsequent Event [Member] \| Apptness Media Group, LLC [Member] \| Common Class A [Member]
Subsequent Event [Line Items]
Common stock par value	$ 0.001
Business Combination, Equity Interests Issued and Issuable	$ 23,000

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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- Definition

Face amount or stated value per share of common stock.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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- Definition

Earn out consideration payable.

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- Definition

Indemnity hold-back amount.

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- Definition

Minimum lock up period.

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- Definition

Percentage of consideration payable in cash.

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- Definition

Percentage of consideration payable in shares.

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