Collaboration Agreements (Collaboration Revenue - Takeda) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 29, 2017 |
Dec. 30, 2016 |
Jan. 01, 2016 |
|
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] | |||
Product supply agreement revenue | $ 349,008 | $ 135,375 | $ 34,158 |
Collaboration revenues | 103,469 | 56,079 | 3,014 |
Collaborative arrangement with Takeda [Member] | |||
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] | |||
Amortization of upfront payments and deferred milestone | 10,377 | ||
Development cost reimbursements | 4,320 | ||
Product supply agreement revenue | 82 | ||
Collaboration revenues | $ 14,779 | $ 0 | $ 0 |