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Agreements with SK hynix and Micron (Details 2) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 7 Months Ended | 3 Months Ended | 7 Months Ended | 3 Months Ended | 7 Months Ended
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Jun. 30, 2014 SK hynix [Member] | Mar. 31, 2014 SK hynix [Member] | Jun. 30, 2014 SK hynix [Member] | Jun. 30, 2014 SK hynix [Member] Royalty revenue | Mar. 31, 2014 SK hynix [Member] Royalty revenue | Jun. 30, 2014 SK hynix [Member] Royalty revenue | Jun. 30, 2014 SK hynix [Member] Gain from settlement | Mar. 31, 2014 SK hynix [Member] Gain from settlement | Jun. 30, 2014 SK hynix [Member] Gain from settlement | Jun. 30, 2014 Micron [Member] | Mar. 31, 2014 Micron [Member] | Jun. 30, 2014 Micron [Member] | Jun. 30, 2014 Micron [Member] Royalty revenue | Mar. 31, 2014 Micron [Member] Royalty revenue | Jun. 30, 2014 Micron [Member] Royalty revenue | Jun. 30, 2014 Micron [Member] Gain from settlement | Mar. 31, 2014 Micron [Member] Gain from settlement | Jun. 30, 2014 Micron [Member] Gain from settlement
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash Received to date in 2014 | $ 12.0 | $ 12.0 | $ 48.0 | $ 11.8 | $ 11.8 | $ 47.3 | $ 0.2 | $ 0.2 | $ 0.7 | $ 10.0 | $ 10.0 | $ 25.5 | $ 9.7 | $ 9.7 | $ 24.7 | $ 0.3 | $ 0.3 | $ 0.8
Estimated to Be Received in Remainder of 2014 | 24.0 |  | 24.0 | 23.6 |  | 23.6 | 0.4 |  | 0.4 | 20.0 |  | 20.0 | 19.3 |  | 19.3 | 0.7 |  | 0.7
Estimated to Be Received in 2015 | 48.0 |  | 48.0 | 47.3 |  | 47.3 | 0.7 |  | 0.7 | 40.0 |  | 40.0 | 38.7 |  | 38.7 | 1.3 |  | 1.3
Estimated to Be Received in 2016 | 48.0 |  | 48.0 | 47.9 |  | 47.9 | 0.1 |  | 0.1 | 40.0 |  | 40.0 | 39.5 |  | 39.5 | 0.5 |  | 0.5
Estimated to Be Received in 2017 | 48.0 |  | 48.0 | 48.0 |  | 48.0 | 0 |  | 0 | 40.0 |  | 40.0 | 40.0 |  | 40.0 | 0 |  | 0
Estimated to Be Received in 2018 | 24.0 |  | 24.0 | 24.0 |  | 24.0 | 0 |  | 0 | 40.0 |  | 40.0 | 40.0 |  | 40.0 | 0 |  | 0
Estimated to Be Received in 2019 and thereafter |  |  |  |  |  |  |  |  |  | 74.5 |  | 74.5 | 74.5 |  | 74.5 | 0 |  | 0
Total Estimated Cash receipts | $ 240.0 |  | $ 240.0 | $ 238.1 |  | $ 238.1 | $ 1.9 |  | $ 1.9 | $ 280.0 |  | $ 280.0 | $ 276.7 |  | $ 276.7 | $ 3.3 |  | $ 3.3

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- Definition Settlement Agreement, Future Receivables, Due In Fifth Full Fiscal Year And Thereafter + References No definition available. + Details
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- Definition Settlement Agreement, Future Receivables, Due within the first full fiscal year following the date of the most recent balance sheet. + References No definition available. + Details
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- Definition Settlement Agreement, Future Receivables, Due within the fourth full fiscal year following the date of the most recent balance sheet. + References No definition available. + Details
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- Definition Settlement Agreement, Future Receivables, Due within the second full fiscal year following the date of the most recent balance sheet. + References No definition available. + Details
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- Definition Settlement Agreement, Future Receivables, Due within the third full fiscal year following the date of the most recent balance sheet. + References No definition available. + Details
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- Definition Settlement Agreement, Future Receivables due within the remainder of current fiscal year. + References No definition available. + Details
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- Definition Cash received for the settlement of litigation during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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