XML 16 R10.htm IDEA: XBRL DOCUMENT
v3.25.3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2025 USD ($)
2025 Secondary Public Offering |
Underwriting discounts | $ 6,900
At-the-Market Offering |
Commissions | $ 1,066

X
- Definition Commissions due to offering. + References No definition available. + Details
Name: | nktr_CommissionsDueToOffering
Namespace Prefix: | nktr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Underwriting discounts due to offering. + References No definition available. + Details
Name: | nktr_UnderwritingDiscountsDueToOffering
Namespace Prefix: | nktr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=nktr_TwoThousandTwentyFiveSecondaryPublicOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=nktr_AtTheMarketOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |