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Derivative Liabilities - Forward Purchase Agreement (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) $ / shares shares
Class of Warrant or Right [Line Items] |
Forward purchase units | 5,000,000
Forward Purchase Per Unit | $ / shares | $ 10.00
Forward purchase amount | $ | $ 14,000,000
Additional forward purchase units | 9,000,000

X
- Definition Represents the maximum additional number of units that can be sold as per agreement. + References No definition available. + Details
Name: | motv_AgreementNumberOfMaximumAdditionalUnitsCanBeSold
Namespace Prefix: | motv_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Forward Purchase Amount. + References No definition available. + Details
Name: | motv_ForwardPurchaseAmount
Namespace Prefix: | motv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Forward Purchase Per unit. + References No definition available. + Details
Name: | motv_ForwardPurchasePerUnit
Namespace Prefix: | motv_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Forward purchase shares. + References No definition available. + Details
Name: | motv_ForwardPurchaseShares
Namespace Prefix: | motv_
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_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration