Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policies - Revenue Recognition (Details)

v3.19.3
Basis of Presentation and Accounting Policies - Revenue Recognition (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
Change in Contract with Customer, Liability [Roll Forward]  
Balance at beginning of period $ 968
Previously deferred revenues recognized upon completion of performance obligations during the period (950)
Net contract liabilities arising during the period 2,723
Balance at end of period $ 2,741