Equity Investments (Tables)

6 Months Ended

Jan. 31, 2019

Equity Investments [Abstract]

Summary of carrying value of equity investments

	Three Months Ended January 31, 2019			Six Months Ended  January 31,  2019
	(in thousands)
Balance, beginning of period	$	3,118		$	1,883
Adoption of change in accounting for equity investments		—			1,213
Adjusted balance, beginning of period		3,118			3,096
Adjustment for observable transactions involving a similar investment from the same issuer		(71	)		(49	)
Redemptions		(2	)		(2	)
Impairments		—			—
Balance, end of period	$	3,045		$	3,045

Summary of unrealized gains and losses for all equity investments

	Three Months Ended January 31,				Six Months Ended January 31,
	2019		2018		2019		2018
	(in thousands)
Net gains recognized during the period on equity investments	$	128	$	3	$	81	$	23
Less: net gains and losses recognized during the period on equity investments redeemed during the period		—		—		—		—
Unrealized gains recognized during the period on equity investments still held at the reporting date	$	128	$	3	$	81	$	23