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Recent Accounting Pronouncements (Tables) | 12 Months Ended
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Dec. 31, 2018
Summary of Significant Accounting Policies [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] |
| Year Ended December 31, 2018
(In thousands) | As Reported |  | Effect of Change Higher/ (Lower) |  | Amounts under ASC 605
Consolidated Statement of Operations |  |  |  |  |
Revenue: |  |  |  |  |
Royalties | $ | 130,452 |  |  | $ | 172,769 |  |  | $ | 303,221 |
Product revenue | 38,690 |  |  | 707 |  |  | 39,397 |
Contract and other revenue | 62,059 |  |  | (3,576 | ) |  | 58,483 |
Total revenue | $ | 231,201 |  |  | $ | 169,900 |  |  | $ | 401,101 |
Costs and expenses: |  |  |  |  |
Interest income and other income (expense), net | $ | 16,339 |  |  | $ | (27,235 | ) |  | $ | (10,896 | )
Provision for income taxes | $ | 87,329 |  |  | $ | — |  |  | $ | 87,329 |
Net loss | $ | (157,957 | ) |  | $ | 142,665 |  |  | $ | (15,292 | )
| December 31, 2018
(In thousands) | As Reported |  | Effect of Change Higher/ (Lower) |  | Amounts under ASC 605
Consolidated Balance Sheet |  |  |  |  |
Assets: |  |  |  |  |
Unbilled receivables | $ | 673,616 |  |  | $ | (673,616 | ) |  | $ | — |
Liabilities: |  |  |  |  |
Deferred revenue | 19,566 |  |  | (1,243 | ) |  | 18,323 |
Deferred tax liabilities (included in other long-term liabilities) | 18,960 |  |  | (2,079 | ) |  | 16,881 |
Income taxes payable | 93,670 |  |  | (90,400 | ) |  | 3,270 |
Stockholders’ equity: |  |  |  |  |
Accumulated deficit | (204,294 | ) |  | (483,623 | ) |  | (687,917 | )

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- Definition Summary of Significant Accounting Policies [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109236672&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22580-107794 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109236672&loc=d3e725-108305 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
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