CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue:
Total revenue	$ 11,474,225	$ 12,378,208	$ 12,761,863
Costs and Expenses (exclusive of depreciation and amortization):
Cost of services	7,100,543	7,527,563	7,852,934
Cost of sales - equipment and other	78,219	79,905	87,578
Selling, general and administrative expenses	1,375,908	1,593,723	1,442,897
Depreciation and amortization	315,660	354,361	439,004
Impairment of long-lived assets (Note 6)	6,457
Total costs and expenses	8,876,787	9,555,552	9,822,413
Operating income (loss)	2,597,438	2,822,656	2,939,450
Other Income (Expense):
Interest income	464,939	440,412	36,458
Interest expense, net of amounts capitalized	(753,162)	(871,530)	(683,803)
Other, net	518	4,466	(820)
Total other income (expense)	(287,705)	(426,652)	(648,165)
Income (loss) before income taxes	2,309,733	2,396,004	2,291,285
Income tax (provision) benefit, net	(565,104)	(585,259)	(554,413)
Net income (loss)	1,744,629	1,810,745	1,736,872
Comprehensive Income (Loss):
Net income (loss)	1,744,629	1,810,745	1,736,872
Other comprehensive income (loss):
Foreign currency translation adjustments	(48)	(1,245)	(402)
Unrealized holding gains (losses) on available-for-sale debt securities	14	107	(122)
Deferred income tax (expense) benefit, net	(22)	(45)	67
Total other comprehensive income (loss), net of tax	(56)	(1,183)	(457)
Comprehensive income (loss)	1,744,573	1,809,562	1,736,415
Service revenue
Revenue:
Total revenue	11,320,526	12,281,346	12,661,766
Equipment sales and other revenue
Revenue:
Total revenue	$ 153,699	$ 96,862	$ 100,097