Revenue Recognition and Deferred Costs - Additional Information (Details 1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-10-01 $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations	$ 76.0
Remaining performance obligations, percentage	53.00%
Remaining performance obligations, satisfaction period	12 months
Revenue, expected recognition period, explanation	We expect to recognize approximately 53% of the remaining performance obligations as revenue in the following 12-month periods, and the remaining balance in the periods thereafter.