Financing and Trade Receivables - Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Current Period Gross Write-offs
2023	$ 2.3
2022	9.0
2021	5.1
2020	2.5
2019	1.6
Prior	1.1
Total	21.6
PSAs
Financing Receivable, Credit Quality Indicator [Line Items]
2023	116.9
2022	114.4
2021	57.5
2020	28.9
2019	11.2
Prior	2.6
Total	331.5	$ 320.6
Current Period Gross Write-offs
2023	2.3
2022	8.9
2021	5.0
2020	2.4
2019	1.1
Prior	0.5
Total	20.2
PSAs | Less than 400
Financing Receivable, Credit Quality Indicator [Line Items]
2023	10.6
2022	10.2
2021	5.4
2020	2.6
2019	1.4
Prior	0.1
Total	30.3
PSAs | 400-599
Financing Receivable, Credit Quality Indicator [Line Items]
2023	16.0
2022	17.3
2021	8.8
2020	4.7
2019	2.1
Prior	0.6
Total	49.5
PSAs | 600-799
Financing Receivable, Credit Quality Indicator [Line Items]
2023	34.4
2022	34.3
2021	18.9
2020	9.6
2019	3.6
Prior	1.1
Total	101.9
PSAs | 800+
Financing Receivable, Credit Quality Indicator [Line Items]
2023	55.9
2022	52.6
2021	24.4
2020	12.0
2019	4.1
Prior	0.8
Total	149.8
Franchisee Notes
Financing Receivable, Credit Quality Indicator [Line Items]
2023	15.4
2022	22.3
2021	17.7
2020	9.6
2019	8.4
Prior	11.1
Total	84.5
Current Period Gross Write-offs
2023	0.0
2022	0.1
2021	0.1
2020	0.1
2019	0.5
Prior	0.6
Total	1.4
Franchisee Notes | Active distributors
Financing Receivable, Credit Quality Indicator [Line Items]
2023	15.4
2022	21.5
2021	14.9
2020	7.0
2019	5.9
Prior	6.3
Total	71.0
Franchisee Notes | Separated distributors
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0.0
2022	0.8
2021	2.8
2020	2.6
2019	2.5
Prior	4.8
Total	$ 13.5