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Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2019

Financial Instruments, Owned, at Fair Value [Abstract]

Estimated Fair Values of Financial Instruments

The following table presents the fair values of financial instruments:

	March 31, 2019				December 31, 2018
	(Amounts in thousands)
Assets
Investments	$	4,061,224			$	3,768,091
Note receivable	5,588				5,557
Liabilities
Total return swap	$	2,312			$	4,851
Options sold	716				3
Unsecured notes	372,638				362,674

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