Property and Equipment - Depreciation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Depreciation expense
Total depreciation expense	$ 143,821	$ 135,014
Buildings and improvements
Depreciation expense
Total depreciation expense	3,487	1,709
Furniture, fixtures, equipment and other
Depreciation expense
Total depreciation expense	20,650	21,696
Customer premises equipment
Depreciation expense
Total depreciation expense	46,192	43,448
Satellites
Depreciation expense
Total depreciation expense	$ 73,492	$ 68,161