Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes 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 June 30, 2018 and December 31, 2017:

			Fair Value Measurements Using:
As of June 30, 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	$	21	$	21	$	—	$	—
Investments—guaranteed income fund	671		—		—		671
Investments—mutual funds and other	6,794		6,794		—		—
Total investments	7,486		6,815		—		671
Derivative assets	534		—		534		—
Total assets	$	8,020	$	6,815	$	534	$	671
Liabilities:
Derivative liabilities	$	886	$	—	$	886	$	—

			Fair Value Measurements Using:
As of December 31, 2017	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	648		—		—		648
Investments—mutual funds and other	6,086		6,086		—		—
Total investments	6,756		6,108		—		648
Derivative assets	1,286		—		1,286		—
Total assets	$	8,042	$	6,108	$	1,286	$	648
Liabilities:
Derivative liabilities	$	6,247	$	—	$	6,247	$	—

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 six months ended June 30, 2018 and 2017:

	Six Months Ended   June 30,
	2018			2017
(in thousands)
Beginning Balance	$	648		$	561
Purchases and adjustments	54			65
Transfers	(24		)	—
Distribution	(12		)	—
Investment income	5			4
Ending Balance	$	671		$	630