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Balance Sheet Details (Details 4) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Property, Plant and Equipment [Abstract] |  |
EDA tools software licenses liability | $ 14,566 | $ 15,563
Price protection liability | 6,563 | 0
Other current liabilities | 5,469 | 8,429
Other current liabilities | $ 26,598 | $ 23,992

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- Definition EDA Tools Software License Liability, Current + References No definition available. + Details
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Namespace Prefix: | rmbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Other Liabilities, Miscellaneous, Current + References No definition available. + Details
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Namespace Prefix: | rmbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Price Protection Liability, Current + References No definition available. + Details
Name: | rmbs_PriceProtectionLiabilityCurrent
Namespace Prefix: | rmbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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