Stock Appreciation Rights, Deferred Compensation and Redeemable Noncontrolling Interests (Tables)

6 Months Ended

Oct. 31, 2018

Stock Appreciation Rights, Deferred Compensation and Redeemable Noncontrolling Interests

Summary of changes to liability for equity based compensation arrangements

	Stock				Redeemable
	Appreciation		Deferred		Noncontrolling
	Rights		Compensation		Interests
	(in thousands)
Balance as of April 30, 2018	$	21,944	$	2,222	$	16,170
Amounts redeemed		(534)		(711)		(4,110)
Change in fair value		984		112		702
Balance as of October 31, 2018	$	22,394	$	1,623	$	12,762
Classified as current as of April 30, 2018	$	308	$	133	$	463
Classified as long-term as of April 30, 2018		21,636		2,089		15,707
Classified as current as of October 31, 2018	$	1,017	$	7	$	1,196
Classified as long-term as of October 31, 2018		21,377		1,616		11,566