Supplemental Data - Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Supplemental Data - Statements of Cash Flows
Cash paid for interest (including capitalized interest)		$ 397,910	$ 404,158
Cash received for interest		2,275	5,153
Cash paid for income taxes		60,463	4,294
Capitalized interest (1)		405,205	451,026
Employee benefits paid in Class A common stock		30,303	28,301
Tax impact of the CARES Act			$ 97,256
Deferred tax liabilities		3,977,044		$ 3,869,570
Vendor financing		26,463
ASU 2020-06
Supplemental Data - Statements of Cash Flows
Convertible debt reclassed per ASU 2020-06 (1)	$ 1,051,000	1,051,344
Deferred tax liabilities	$ 245,778	245,778
Licenses 3550-3650 MHz
Supplemental Data - Statements of Cash Flows
3550-3650 MHz licenses reclassification		$ 912,939