XML 74 R63.htm IDEA: XBRL DOCUMENT
v3.22.2

Net Loss per Share - Potentially Dilutive Shares (Details) - shares shares in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Potentially dilutive shares not included in diluted per share calculation | 21,490 | 17,718
Options to purchase common stock |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Potentially dilutive shares not included in diluted per share calculation | 5,435 | 6,284
Performance-based awards and restricted stock units |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Potentially dilutive shares not included in diluted per share calculation | 7,601 | 3,992
Employee stock purchase plan |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Potentially dilutive shares not included in diluted per share calculation | 112 | 31
Convertible Notes |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Potentially dilutive shares not included in diluted per share calculation | 7,411 | 7,411
Earnouts for development with acquired Canadian entity |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Potentially dilutive shares not included in diluted per share calculation | 931 |

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
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_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=ntra_EmployeeAndNonEmployeeOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=ntra_PerformanceBasedAwardsAndRestrictedStockUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=ntra_EmployeeStockPurchasePlan2015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_ConvertibleNotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=ntra_EarnoutsForDevelopmentWithAcquiredCanadianEntityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |