XML 38 R23.htm IDEA: XBRL DOCUMENT

Subsequent Event	6 Months Ended
Subsequent Event	Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Event	18. Subsequent Event On July 19, 2017, the Company achieved GLP Tox Success Criteria under the CD71 Agreement entered into with AbbVie, which triggered a $15.0 million milestone payment to the Company. This milestone is expected to be recognized as revenue in its entirety during the quarter ended September 30, 2017.