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Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Fair Value Disclosures [Abstract]  
Estimated Fair Values of Financial Instruments
The following table presents the fair values of financial instruments:
 December 31,
 20242023
 (Amounts in thousands)
Assets
Investments$6,076,370 $5,228,520 
Notes receivable31,231 9,974 
Liabilities
Options sold 213 1,955 
Notes payable 566,812 557,710