Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2017

Financial Instruments, Owned, at Fair Value [Abstract]

Estimated Fair Values of Financial Instruments

The following table presents the estimated fair values of financial instruments:

	June 30, 2017		December 31, 2016
	(Amounts in thousands)
Assets
Investments	$	3,659,158	$	3,547,560
Total return swaps	—		667
Liabilities
Total return swaps	$	1,725	$	765
Options sold	104		20
Secured notes	—		140,000
Unsecured notes	380,059		180,000