Goodwill and Intangible Assets - Intangible Assets, Net (Details) $ in Millions	Sep. 30, 2021 USD ($)
Goodwill [Line Items]
Gross Carrying Amount	$ 18.2
Accumulated Amortization	1.7
Net Carrying Amount	16.5
Technology
Goodwill [Line Items]
Gross Carrying Amount	10.0
Accumulated Amortization	1.0
Net Carrying Amount	9.0
Customer relationships - Software and Software Solutions
Goodwill [Line Items]
Gross Carrying Amount	5.2
Accumulated Amortization	0.6
Net Carrying Amount	4.6
Customer relationships - Consulting
Goodwill [Line Items]
Gross Carrying Amount	3.0
Accumulated Amortization	0.1
Net Carrying Amount	$ 2.9