Basis of Presentation (Details) - USD ($) $ in Millions				3 Months Ended			6 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020
Sales [Member]
Accounting Policies [Abstract]
Quantifying Misstatement in Current Year Financial Statements, Amount				$ 0.8	$ 0.2	$ 0.6	$ 0.8
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Quantifying Misstatement in Current Year Financial Statements, Amount				0.8	0.2	0.6	0.8
Net Income [Member]
Accounting Policies [Abstract]
Quantifying Misstatement in Current Year Financial Statements, Amount				0.6	0.2	0.4	0.6
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Quantifying Misstatement in Current Year Financial Statements, Amount				$ 0.6	$ 0.2	$ 0.4	$ 0.6
Unbilled Services, Net [Member]
Accounting Policies [Abstract]
Quantifying Misstatement in Current Year Financial Statements, Amount	$ 0.8	$ 0.8	$ 0.6
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Quantifying Misstatement in Current Year Financial Statements, Amount	$ 0.8	$ 0.8	$ 0.6