Investments (Tables)

6 Months Ended

Jun. 30, 2020

Trading Securities

Gain (Loss) on Securities [Line Items]

Summary of Cost and Fair Value of Investments

A summary of the cost and fair value of investments classified as trading securities were as follows:

			Gross Unrealized					Fair
(in thousands)	Cost		Gains		(Losses)			Value
As of June 30, 2020	$	20,265	$	242	$	(2,738	)	$	17,769
As of December 31, 2019		18,670		733		(1,098	)		18,305

Summary of Proceeds and Realized Gains and Losses

Proceeds from sales and realized gains and losses from trading securities in the periods ended June 30, 2020 and 2019 were as follows:

	Sale		Realized
(in thousands)	Proceeds		Gains		(Losses)
For the three months ended June 30, 2020	$	899	$	17	$	(96	)
For the three months ended June 30, 2019		865		12		(12	)

	Sale		Realized
(in thousands)	Proceeds		Gains		(Losses)
For the six months ended June 30, 2020	$	1,990	$	37	$	(142	)
For the six months ended June 30, 2019		1,435		14		(31	)

Available For Sale Securities

Gain (Loss) on Securities [Line Items]

Summary of Cost and Fair Value of Investments

A summary of the cost and fair value of investments classified as available-for-sale were as follows:

			Gross Unrealized					Fair
(in thousands)	Cost		Gains		(Losses)			Value
As of June 30, 2020	$	701	$	52	$	(15	)	$	738
As of December 31, 2019		696		85		(10	)		771

Summary of Proceeds From Sales and Realized Gains and Losses From Available-for-sale Securities

Proceeds from sales and realized gains and losses from available-for-sale securities in the periods ended June 30, 2020 and 2019 were as follows:

	Sale		Realized
(in thousands)	Proceeds		Gains		(Losses)
For the three months ended June 30, 2020	$	274	$	18	$	(13	)
For the three months ended June 30, 2019		104		4		—

	Sale		Realized
(in thousands)	Proceeds		Gains		(Losses)
For the six months ended June 30, 2020	$	274	$	18	$	(13	)
For the six months ended June 30, 2019		104		4		—