Discontinued Operations - Income (Loss) From Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other (expense) income:
Debt extinguishment						$ (11,000)
Income from discontinued operations, net of tax	$ (4,965)	$ (406)	$ 51,566	$ 48,472
Discontinued Operations, Held-for-sale
Revenue:
Revenue					$ 10,200	213,329	$ 442,373	$ 443,389
Operating expenses
Selling, general and administrative						17,514	34,011	39,128
Severance expense						465	0	0
Depreciation and amortization						0	62,930	111,467
Total operating expenses						68,087	253,977	344,225
Operating income						145,242	188,396	99,164
Other (expense) income:
Debt extinguishment						(11,032)	0	0
Interest expense and other, net						(9,178)	(20,455)	(29,286)
Income before income taxes						1,352,563	167,941	69,878
Income tax expense						361,661	43,844	16,310
Income from discontinued operations, net of tax						990,902	124,097	53,568
Discontinued Operations, Held-for-sale | Service revenue and other
Revenue:
Revenue						201,076	401,035	375,730
Discontinued Operations, Held-for-sale | Equipment revenue
Revenue:
Revenue						12,253	41,338	67,659
Discontinued Operations, Held-for-sale | Cost of services
Operating expenses
Cost of services and cost of goods sold						38,144	116,394	128,482
Discontinued Operations, Held-for-sale | Cost of goods sold
Operating expenses
Cost of services and cost of goods sold						11,964	40,642	65,148
Discontinued Operations, Disposed of by Sale
Other (expense) income:
Gain on sale of disposition of Wireless assets and operations						$ 1,227,531	$ 0	$ 0