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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Financial Instruments, Owned, at Fair Value [Abstract]

Estimated Fair Values of Financial Instruments

The following table presents the fair values of financial instruments:

	June 30, 2019				December 31, 2018
	(Amounts in thousands)
Assets
Investments	$	4,165,002			$	3,768,091
Note receivable	5,635				5,557
Liabilities
Total return swap	$	1,722			$	4,851
Options sold	405				3
Unsecured notes	384,401				362,674

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