Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

Financial Instruments, Owned, at Fair Value [Abstract]

Estimated Fair Values of Financial Instruments

The following table presents the fair values of financial instruments:

	September 30, 2017		December 31, 2016
	(Amounts in thousands)
Assets
Investments	$	3,727,332	$	3,547,560
Note receivable	5,585		—
Total return swaps	—		667
Liabilities
Total return swaps	$	1,589	$	765
Options sold	146		20
Secured notes	—		140,000
Unsecured notes	385,733		180,000