REVENUE RECOGNITION SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES REVENUE RECOGNITION SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
|9 Months Ended|
Sep. 30, 2018
|Accounting Policies [Abstract]|
|Contract with Customer, Asset and Liability||The following is a summary of our unbilled and deferred revenue and related activity:
(1) Relates to year-to-date revenues recognized from amounts included in deferred revenue at the beginning of the year.Revenue recognized in the period from performance obligations satisfied in previous periods was immaterial.
Tabular disclosure of contract balances and changes in contract balances.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef