CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Total revenue	$ 3,133,411	$ 3,162,919
Costs and Expenses (exclusive of depreciation):
Cost of services	1,890,096	1,958,699
Cost of sales - equipment and other	20,872	16,275
Selling, general and administrative expenses	401,751	333,074
Depreciation and amortization	95,916	115,242
Total costs and expenses	2,408,635	2,423,290
Operating income (loss)	724,776	739,629
Other Income (Expense):
Interest income	97,120	806
Interest expense, net of amounts capitalized	(232,369)	(173,976)
Other, net	790	(1,508)
Total other income (expense)	(134,459)	(174,678)
Income (loss) before income taxes	590,317	564,951
Income tax (provision) benefit, net	(145,906)	(140,424)
Net income (loss)	444,411	424,527
Comprehensive Income (Loss):
Net income (loss)	444,411	424,527
Other comprehensive income (loss):
Foreign currency translation adjustments	(187)	(195)
Unrealized holding gains (losses) on available-for-sale debt securities	(76)	(2)
Deferred income tax (expense) benefit, net	21
Total other comprehensive income (loss), net of tax	(242)	(197)
Comprehensive income (loss)	444,169	424,330
Service revenue
Revenue:
Total revenue	3,108,313	3,137,387
Equipment sales and other revenue
Revenue:
Total revenue	$ 25,098	$ 25,532