Revenue - Accounts Receivable, Unbilled Services, and Deferred Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Accounts receivable
Accounts receivable, beginning balance			$ 96,210,000	$ 454,993,000
Additions			981,305,000	1,519,345,000
Deductions			(946,182,000)	(1,862,693,000)
Accounts receivable, ending balance	$ 131,333,000	$ 111,645,000	131,333,000	111,645,000
Allowance for doubtful accounts
Allowance for doubtful accounts, beginning balance			(13,835,000)	0
Additions	0	0	0	0
Deductions			6,159,000	0
Allowance for doubtful accounts, end balance	(7,676,000)	0	(7,676,000)	0
Deferred revenue
Deferred revenue, beginning balance			549,551,000	1,595,472,000
Additions			422,766,000	96,298,000
Deductions			(171,288,000)	(251,576,000)
Deferred revenue, ending balance	$ 801,029,000	$ 1,440,194,000	$ 801,029,000	$ 1,440,194,000