Commitments and Contingencies - Wireless Spectrum Licenses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2024	Sep. 30, 2024	Dec. 31, 2024
Commitments and Contingencies
Period for receiving preferential international roaming rates at a reduced rate	10 years
Upfront payment			$ 95,435
Gain on sale of assets sold			21,310
Liberty Puerto Rico Asset Sale losses (gains)
Commitments and Contingencies
Consideration for sale of assets		$ 125,000
Term for consideration receivable on sale of assets		3 years
Upfront payment			95,000
Trade accounts payable			46,000
Gain on sale of assets sold			$ 21,000
Liberty Agreement
Commitments and Contingencies
Consideration for sale of assets		$ 251,000