Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables summarize our financial assets and liabilities that are measured at fair value on a recurring basis and the fair value measurements, by level, within the fair value hierarchy as of March 31, 2019 and December 31, 2018:

			Fair Value Measurements Using:
As of March 31, 2019	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
(in thousands)
Assets:
Investments—equity securities	$	25	$	25	$	—	$	—
Investments—guaranteed income fund	695		—		—		695
Investments—mutual funds and other	6,789		6,789		—		—
Total investments	7,509		6,814		—		695
Derivative assets	9,221		—		9,221		—
Total assets	$	16,730	$	6,814	$	9,221	$	695
Liabilities:
Derivative liabilities	$	6,798	$	—	$	6,798	$	—

			Fair Value Measurements Using:
As of December 31, 2018	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
(in thousands)
Assets:
Investments—equity securities	$	22	$	22	$	—	$	—
Investments—guaranteed income fund	686		—		—		686
Investments—mutual funds and other	6,003		6,003		—		—
Total investments	6,711		6,025		—		686
Derivative assets	13,165		—		13,165		—
Total assets	$	19,876	$	6,025	$	13,165	$	686
Liabilities:
Derivative liabilities	$	14,871	$	—	$	14,871	$	—

Summary of Changes in Fair Value of Investments

The following table sets forth the summary of the changes in the fair value of Level 3 investments for the three months ended March 31, 2019 and 2018:

	Three Months Ended   March 31,
	2019		2018
(in thousands)
Beginning Balance	$	686	$	648
Purchases and adjustments	6		(48		)
Investment income	3		2
Ending Balance	$	695	$	602