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

6 Months Ended

Oct. 31, 2017

Stock appreciation rights

Equity based compensation arrangements

Summary of changes to liability for equity based compensation arrangements

Stock appreciation rights as of May 1, 2017	$	20,662
Amounts redeemed		(501)
Change in fair value		1,232
Stock appreciation rights as of October 31, 2017	$	21,393

Deferred compensation

Equity based compensation arrangements

Summary of changes to liability for equity based compensation arrangements

Deferred compensation as of May 1, 2017	$	3,750
Amounts redeemed		(1,733)
Change in fair value		132
Deferred compensation as of October 31, 2017	$	2,149

Noncontrolling interest awards

Equity based compensation arrangements

Summary of changes to liability for equity based compensation arrangements

Non-controlling interests as of May 1, 2017	$	24,309
Amounts redeemed		(9,664)
Change in fair value		898
Non-controlling interests as of October 31, 2017	$	15,543