XML 71 R58.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Stockholders' Equity (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Mar. 31, 2016 | Jan. 21, 2015
Share repurchase program |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased |  |  | 20,000,000.0
UpfrontPaymentUnderAcceleratedStockRepurchaseProgram | $ 100,000 |  |
Stock Repurchased and Retired During Period, Shares | 7,812,000 |  |
Stock Repurchased and Retired During Period, Value | $ 80,000 |  |
UnsettledForwardContractIndexedtoIssuersStockClassifiedwithinStock | $ 20,000 |  |
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased |  | 12,200,000 |

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | rmbs_StockRepurchaseProgramAbstract
Namespace Prefix: | rmbs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The excess of the amount paid under the accelerated stock repurchase agreement at inception relative to the fair value of the initial delivery of shares, evaluated as an unsettled forward contract indexed to the issuer's stock and reduced from Stockholders' Equity. + References No definition available. + Details
Name: | rmbs_UnsettledForwardContractIndexedtoIssuersStockClassifiedwithinStock
Namespace Prefix: | rmbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The upfront payment in exchange for initial delivery of shares under the accelerated stock repurchase program. + References No definition available. + Details
Name: | rmbs_UpfrontPaymentUnderAcceleratedStockRepurchaseProgram
Namespace Prefix: | rmbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
Name: | us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration