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Noncontrolling Interests - Additional Information (Details) - shares	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025
Members Equity Class B Units
Minority Interest [Line Items]
Exchange units for shares of common stock (shares)	941,777	999,125

X

- Definition

Exchange units for shares of common stock.

+ References

No definition available.

+ Details

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Namespace Prefix:	dsp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_MinorityInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=dsp_MembersEquityClassBUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: