Investments in Affiliates and Other Entities - Equity Investments by Type (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Marketable equity securities	$ 0	$ 0
Non-marketable equity securities	54,134,000	53,868,000
Total equity investments	211,218,000	178,097,000
Integral Affiliates
Schedule of Equity Method Investments [Line Items]
Equity method investments	101,251,000	96,124,000
Non-Integral Unconsolidated Affiliates
Schedule of Equity Method Investments [Line Items]
Equity method investments	55,833,000	$ 28,105,000
Starry Group Holdings, Inc.
Schedule of Equity Method Investments [Line Items]
Marketable equity securities	0
Marketable security, unrealized gain (loss)	$ (91,500,000)