Derivative Instruments (Impact of Derivative Instruments on Borrowing Costs) (Details)	Mar. 31, 2024
Derivative [Line Items]
Impact of derivative instruments on borrowing costs	(3.32%)
Sunrise Holding
Derivative [Line Items]
Impact of derivative instruments on borrowing costs	(3.60%)
VM Ireland
Derivative [Line Items]
Impact of derivative instruments on borrowing costs	(3.56%)
Telenet
Derivative [Line Items]
Impact of derivative instruments on borrowing costs	(2.98%)