Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investments - Gains and Losses on Sales and Changes in Carrying Amounts of Investments and Other (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investments
Gains (losses) related to early redemption of debt		$ 49
Equity in earnings (losses) of affiliates	$ (708)	(763)
Other	139	135
Total	$ (569)	$ (579)