Payment for third party assets if purchase option is exercised.

No definition available.

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Namespace Prefix:	ntra_
Data Type:	xbrli:monetaryItemType
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- Definition

Number of entity's patents that another entity has allegedly infringed.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12021-110248

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Balance Type:	debit
Period Type:	instant

- Definition

Number of another entity's patents that the entity has allegedly infringed.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

+ Details

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

- Details

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- Details

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- Details

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Commitments and Contingencies (Details) $ in Thousands	1 Months Ended
Commitments and Contingencies (Details) $ in Thousands	May 31, 2021 USD ($)	Jan. 31, 2021 patent	Sep. 30, 2020 patent	Jun. 30, 2020 patent	Mar. 31, 2020 patent	Jun. 30, 2021 USD ($)
Other commitments
Contractual commitment for development and option agreement \| $	$ 10,000
Payment for third party assets if purchase option is exercised \| $	$ 290,000
Total commitments \| $						$ 62,722
Material supplier
Other commitments
Total commitments \| $						14,207
Application service provider
Other commitments
Total commitments \| $						31,853
Other material suppliers
Other commitments
Total commitments \| $						16,662
Securities related claims
Other commitments
Estimate of possible loss \| $						$ 2,500
CareDX Patent Case
Other commitments
Loss contingency, patents allegedly infringed, number					3
Gain contingency, patents allegedly infringed, number					2
ArcherDX Patent Case
Other commitments
Gain contingency, patents allegedly infringed, number			5
Ravgen Patent Case
Other commitments
Loss contingency, patents allegedly infringed, number				2
Progenity Patent Case
Other commitments
Gain contingency, patents allegedly infringed, number				6
Inivita Patent Case
Other commitments
Gain contingency, patents allegedly infringed, number		2
Claims remaining \| Progenity Patent Case
Other commitments
Gain contingency, patents allegedly infringed, number				3
Claims dropped or dismissed \| Progenity Patent Case
Other commitments
Gain contingency, patents allegedly infringed, number				3