Summary of Significant Accounting Policies and Basis of Presentation - Remaining Performance Obligations (Details)	Dec. 31, 2018 USD ($)
Accounting Policies [Abstract]
Remaining performance obligations	$ 104,303
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Accounting Policies [Abstract]
Remaining performance obligations	29,851
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Accounting Policies [Abstract]
Remaining performance obligations	36,817
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Accounting Policies [Abstract]
Remaining performance obligations	$ 37,635