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Organization and Summary of Significant Accounting Policies - Impact of Adoption of Topic 606 on Contract Assets, Contract Liabilities and Accumulated Deficit (Details) - USD ($) $ in Thousands | Mar. 30, 2018 | Dec. 30, 2017 | Dec. 29, 2017
--- | --- | --- | ---
Contract assets: unbilled collaboration revenue, gross: |  |  |  |
Current portion | $ 31,844 | $ 9,588 | $ 9,588 |
Long-term portion | 0 | 12,247 | 12,247 |
Contract liabilities: deferred revenue, gross: |  |  |  |
Current portion | 0 | 8,393 | 8,393 |
Long-term portion | 3,177 | 25,441 | 25,441 |
Accumulated deficit | (1,454,810) | (1,570,667) | (1,829,172) | [1]
Balances Without the Adoption of Topic 606 |  |  |  |
Contract assets: unbilled collaboration revenue, gross: |  |  |  |
Current portion |  |  | 0 |
Long-term portion |  |  | 0 |
Contract liabilities: deferred revenue, gross: |  |  |  |
Current portion |  |  | 31,984 |
Long-term portion |  |  | 238,520 |
Accumulated deficit | (1,743,822) |  | (1,829,172) |
ASU 2014-09 | Adjustments Due to the Adoption of Topic 606 |  |  |  |
Contract assets: unbilled collaboration revenue, gross: |  |  |  |
Current portion |  |  | 9,588 |
Long-term portion |  |  | 12,247 |
Contract liabilities: deferred revenue, gross: |  |  |  |
Current portion |  |  | (23,591) |
Long-term portion |  |  | $ (213,079) |
Accumulated deficit | $ 289,012 | $ 258,505 |  |
[1] | The Condensed Consolidated Balance Sheet as of December 31, 2017 has been derived from the audited financial statements as of that date.

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