XML 62 R33.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Organization and Significant Accounting Policies, Contracts Receivable (Details) - Partner | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Contracts Receivable [Abstract] |  |
Period of time after billing when payment is received | 3 months |
Contracts Receivable [Abstract] |  |
Number of significant customers | 1 | 1
Contracts Receivables [Member] | Credit Concentration [Member] | One Significant Customer [Member] |  |
Contracts Receivable [Abstract] |  |
Concentration percentage | 87.80% |
Contracts Receivables [Member] | Credit Concentration [Member] | Two Significant Customers [Member] |  |
Contracts Receivable [Abstract] |  |
Concentration percentage |  | 82.50%

X
- Definition The number of significant customers with which the Company does business. + References No definition available. + Details
Name: | ions_NumberOfSignificantCustomers
Namespace Prefix: | ions_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The time period between billing a collaboration partner for goods delivered or services performed that are due unconditionally and payment is received from the collaboration partner, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | ions_PeriodAfterBillingWhenPaymentIsReceived
Namespace Prefix: | ions_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-42 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-21 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-20 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482861/275-10-50-18 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482861/275-10-50-20 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ContractReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ContractWithCustomerAssetNetCurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=ions_OneSignificantCustomerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=ions_TwoSignificantCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |