Subsequent Events - Additional Information (Detail) - Subsequent Event [Member] - USD ($) $ / shares in Units, $ in Millions	1 Months Ended
May 31, 2021	Apr. 30, 2021
Subsequent Event [Line Items]
Contractual obligation amount	$ 130.0
Amended contractual obligation amount	$ 300.0
Restricted Stock Units (RSUs) [Member]
Subsequent Event [Line Items]
Share-based payment arrangement, restricted stock unit, granted	6,038,514
Restricted stock units granted, price per share	$ 58.55
Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Share-based payment arrangement, restricted stock unit, granted, vesting period	5 years
Restricted Stock Units (RSUs) [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Share-based payment arrangement, restricted stock unit, granted, vesting period	4 years
Mobile Game Apps From Two Separate Independent Foreign Based Mobile Game Developers [Member]
Subsequent Event [Line Items]
Asset acquisition upfront payment		$ 300.0
Earn-out payment related to asset acquisition		$ 50.0

Amended contractual obligation.

No definition available.

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Namespace Prefix:	app_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Asset acquisition contingent consideration.

+ References

No definition available.

+ Details

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Namespace Prefix:	app_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Asset acquisition upfront payment.

+ References

No definition available.

+ Details

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Namespace Prefix:	app_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

+ Details

Name:	us-gaap_ContractualObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- 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.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

Name:	app_AssetAcquisitionAxis=app_MobileGameAppsFromTwoSeparateIndependentForeignBasedMobileGameDevelopersMember
Namespace Prefix:
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Balance Type:
Period Type: