XML 98 R86.htm IDEA: XBRL DOCUMENT v3.22.0.1

Income Taxes - Net Operating Loss and Research Credit Carryforwards (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Federal | Federal
Operating Loss Carryforwards [Line Items]
Net operating loss	$ 31.2
Net operating loss subject to sections 382,383	Yes
Federal | Federal | Minimum
Operating Loss Carryforwards [Line Items]
Net operating loss, expiration in year	2036
Federal | Federal | Maximum
Operating Loss Carryforwards [Line Items]
Net operating loss, expiration in year	2037
Federal | Federal | Capital loss
Operating Loss Carryforwards [Line Items]
Tax credit	$ 13.5
Tax credit subject to sections 382,383	No
Federal | Federal | Capital loss | Minimum
Operating Loss Carryforwards [Line Items]
Tax credit, expiration in year	2026
Federal | Federal | Capital loss | Maximum
Operating Loss Carryforwards [Line Items]
Tax credit, expiration in year	2026
Federal | Federal | Research credit
Operating Loss Carryforwards [Line Items]
Tax credit	$ 6.4
Tax credit subject to sections 382,383	Yes
Federal | Federal | Research credit | Minimum
Operating Loss Carryforwards [Line Items]
Tax credit, expiration in year	2027
Federal | Federal | Research credit | Maximum
Operating Loss Carryforwards [Line Items]
Tax credit, expiration in year	2042
State | Utah
Operating Loss Carryforwards [Line Items]
Net operating loss	$ 2.4
Net operating loss subject to sections 382,383	No
State | Utah | Minimum
Operating Loss Carryforwards [Line Items]
Net operating loss, expiration in year	2022
State | Utah | Research credit
Operating Loss Carryforwards [Line Items]
Tax credit	$ 6.9
Tax credit subject to sections 382,383	No
State | Utah | Research credit | Minimum
Operating Loss Carryforwards [Line Items]
Tax credit, expiration in year	2022
State | Utah | Research credit | Maximum
Operating Loss Carryforwards [Line Items]
Tax credit, expiration in year	2036
State | California
Operating Loss Carryforwards [Line Items]
Net operating loss	$ 3.9
Net operating loss subject to sections 382,383	Yes
State | California | Minimum
Operating Loss Carryforwards [Line Items]
Net operating loss, expiration in year	2027
State | California | Maximum
Operating Loss Carryforwards [Line Items]
Net operating loss, expiration in year	2042
State | California | Research credit
Operating Loss Carryforwards [Line Items]
Tax credit	$ 4.0
Tax credit subject to sections 382,383	No
State | Other
Operating Loss Carryforwards [Line Items]
Net operating loss	$ 7.4
Net operating loss subject to sections 382,383	Yes
State | Other | Minimum
Operating Loss Carryforwards [Line Items]
Net operating loss, expiration in year	2027
State | Other | Maximum
Operating Loss Carryforwards [Line Items]
Net operating loss, expiration in year	2041
Foreign
Operating Loss Carryforwards [Line Items]
Net operating loss	$ 8.8
Net operating loss subject to sections 382,383	No

X

- Definition

Operating Loss Carryforwards, Expiration Year

+ References

No definition available.

+ Details

Name:	mygn_OperatingLossCarryforwardsExpirationYear
Namespace Prefix:	mygn_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tax Credit Carryforwards Expiration Date

+ References

No definition available.

+ Details

Name:	mygn_TaxCreditCarryforwardsExpirationDate
Namespace Prefix:	mygn_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

+ Details

Name:	us-gaap_OperatingLossCarryforwards
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

A description of the limitations on the use of all operating loss carryforwards available to reduce future taxable income.

+ References

No definition available.

+ Details

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

X

- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

+ Details

Name:	us-gaap_TaxCreditCarryforwardAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Description of the limitation related to use of the tax credit carryforward.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityNameAxis=us-gaap_InternalRevenueServiceIRSMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=us-gaap_CapitalLossCarryforwardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=us-gaap_ResearchMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityNameAxis=stpr_UT
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityNameAxis=us-gaap_CaliforniaFranchiseTaxBoardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityNameAxis=mygn_OtherStateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: