Property and Equipment - Depreciation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Property, Plant and Equipment [Line Items]
Total depreciation expense	$ 111,571	$ 104,616	$ 329,522	$ 306,850
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total depreciation expense	1,385	2,895	4,624	8,825
Furniture, fixtures, equipment and other
Property, Plant and Equipment [Line Items]
Total depreciation expense	22,114	20,580	66,438	61,333
Customer premises equipment
Property, Plant and Equipment [Line Items]
Total depreciation expense	49,074	43,584	142,541	129,907
Satellites
Property, Plant and Equipment [Line Items]
Total depreciation expense	$ 38,998	$ 37,557	$ 115,919	$ 106,785