Schedule II - Valuation and Qualifying Accounts (Details) - Accounts receivable reserve: - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 741,806	$ 996,860	$ 974,882
Additions charged to cost and expenses	395,339	168,360	880,967
Deductions	198,084	423,414	858,989
Balance at end of period	$ 939,061	$ 741,806	$ 996,860