Revenue - Schedule of Activity of Contract Assets (Details) - USD ($) $ in Millions	1 Months Ended	2 Months Ended	3 Months Ended
	Sep. 30, 2021	Sep. 07, 2021	Jun. 30, 2021	Mar. 31, 2021
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	$ 0.0	$ 24.9	$ 25.6	$ 26.8
Capitalized contract cost, Additions	1.3	3.7	4.5	4.5
Capitalized contract cost, Amortization	0.0	(4.0)	(5.2)	(5.7)
Capitalized contract cost, net, ending Balance	1.3	24.6	24.9	25.6
Fulfillment Costs [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	5.8	6.7	7.4
Capitalized contract cost, Additions	0.5	1.5	1.7	1.9
Capitalized contract cost, Amortization	0.0	(1.9)	(2.6)	(2.6)
Capitalized contract cost, net, ending Balance	0.5	5.4	5.8	6.7
Cost of Acquisition [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	19.1	18.9	19.4
Capitalized contract cost, Additions	0.8	2.2	2.8	2.6
Capitalized contract cost, Amortization	0.0	(2.1)	(2.6)	(3.1)
Capitalized contract cost, net, ending Balance	0.8	19.2	19.1	18.9
Entertainment and Communications [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	17.5	18.2	19.3
Capitalized contract cost, Additions	1.0	2.7	3.5	3.5
Capitalized contract cost, Amortization	0.0	(3.1)	(4.2)	(4.6)
Capitalized contract cost, net, ending Balance	1.0	17.1	17.5	18.2
Entertainment and Communications [Member] | Fulfillment Costs [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	1.5	2.5	3.5
Capitalized contract cost, Additions	0.2	0.7	0.9	0.9
Capitalized contract cost, Amortization	0.0	(1.4)	(1.9)	(1.9)
Capitalized contract cost, net, ending Balance	0.2	0.8	1.5	2.5
Entertainment and Communications [Member] | Cost of Acquisition [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	16.0	15.7	15.8
Capitalized contract cost, Additions	0.8	2.0	2.6	2.6
Capitalized contract cost, Amortization	0.0	(1.7)	(2.3)	(2.7)
Capitalized contract cost, net, ending Balance	0.8	16.3	16.0	15.7
IT Services and Hardware [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	7.4	7.4	7.5
Capitalized contract cost, Additions	0.3	1.0	1.0	1.0
Capitalized contract cost, Amortization	0.0	(0.9)	(1.0)	(1.1)
Capitalized contract cost, net, ending Balance	0.3	7.5	7.4	7.4
IT Services and Hardware [Member] | Fulfillment Costs [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	4.3	4.2	3.9
Capitalized contract cost, Additions	0.3	0.8	0.8	1.0
Capitalized contract cost, Amortization	0.0	(0.5)	(0.7)	(0.7)
Capitalized contract cost, net, ending Balance	0.3	4.6	4.3	4.2
IT Services and Hardware [Member] | Cost of Acquisition [Member]
Contract Asset [Roll Forward]
Capitalized contract cost, net, beginning balance	0.0	3.1	3.2	3.6
Capitalized contract cost, Additions	0.0	0.2	0.2	0.0
Capitalized contract cost, Amortization	0.0	(0.4)	(0.3)	(0.4)
Capitalized contract cost, net, ending Balance	$ 0.0	$ 2.9	$ 3.1	$ 3.2