Deferred Revenue - Performance Obligations (Details) $ in Millions	Jun. 30, 2022 USD ($)
Performance obligations
Remaining performance obligations	$ 24.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Performance obligations
Remaining performance obligations	$ 2.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Performance obligations
Remaining performance obligations	$ 10.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Performance obligations
Remaining performance obligations	$ 8.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Performance obligations
Remaining performance obligations	$ 2.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period