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Stock Compensation - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 22.5		$ 22.5
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition			2 years 8 months 12 days
Granted (in shares)			12,299,276
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		900,000
Stock-based compensation expense	0.6		$ 0.8
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition			3 years 2 months 12 days
Stock granted, value, share-based compensation, gross			$ 0.6	$ 0.4
Employee service share-based compensation, nonvested awards, compensation not yet recognized, stock options	$ 2.6		$ 2.6