Deferred Revenue - Performance Obligations (Details) $ in Millions	Sep. 30, 2023 USD ($)
Performance obligations
Remaining performance obligations	$ 40.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Performance obligations
Remaining performance obligations	$ 2.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Performance obligations
Remaining performance obligations	$ 17.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Performance obligations
Remaining performance obligations	$ 14.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Performance obligations
Remaining performance obligations	$ 5.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period