Development Awards and Deferred Revenue (Tables)
|9 Months Ended|
Sep. 30, 2018
|Development Awards And Deferred Revenue|
|Schedule of Roll Forward Deferred Revenue||
A roll forward of deferred revenue for the nine months ended September 30, 2018 is presented below:
Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date.
Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef