Revenue from Contracts with Customers - Unsatisfied Performance Obligations Amount (Details) $ in Millions	Dec. 31, 2022 USD ($)
Business subscription services and other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 91.6
Business subscription services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	86.0
Other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 5.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Residential Subscription | Maximum
Unsatisfied Performance Obligations
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Business subscription services and other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 48.4
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Business subscription services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 45.3
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 3.1
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Business subscription services and other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 29.1
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Business subscription services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 27.3
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 1.8
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Business subscription services and other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 11.4
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Business subscription services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 10.8
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 0.6
Expected period to recognize revenue of remaining performance obligations	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Business subscription services and other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 2.7
Expected period to recognize revenue of remaining performance obligations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Business subscription services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 2.6
Expected period to recognize revenue of remaining performance obligations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Other business services
Unsatisfied Performance Obligations
Expected revenue to be recognized in future periods	$ 0.1
Expected period to recognize revenue of remaining performance obligations