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Commitments and Contingencies (Details) - CBI CIFPA $ in Thousands	Apr. 01, 2022 USD ($)
United States and State of California
Loss Contingencies [Line Items]
Settlement agreement	$ 45,250
Relator's counsel
Loss Contingencies [Line Items]
Settlement agreement	$ 2,750

X

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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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

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X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=mygn_UnitedStatesAndStateOfCaliforniaMember
Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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