Revenue - Schedule of Revenues Disaggregation by Product and Service Lines (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation Of Revenue [Line Items]
Revenues	$ 272.8	$ 275.3	$ 544.4	$ 551.2
Operating Segments | Data [Member]
Disaggregation Of Revenue [Line Items]
Revenues	143.3	136.9	284.8	272.6
Operating Segments | Video [Member]
Disaggregation Of Revenue [Line Items]
Revenues	44.7	45.0	89.9	90.5
Operating Segments | Voice [Member]
Disaggregation Of Revenue [Line Items]
Revenues	57.6	64.7	116.9	131.4
Operating Segments | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenues	27.2	28.7	52.8	56.7
Operating Segments | Network [Member]
Disaggregation Of Revenue [Line Items]
Revenues	$ 272.8	$ 275.3	$ 544.4	$ 551.2