Equity-Based Compensation - (Tables)

12 Months Ended

Apr. 30, 2017

Equity-Based Compensation

Schedule of weighted average assumptions used in Black-Scholes option-pricing model

	April 30, 2017
Volatility		40.68	%
Expected life (years)		6.0
Risk-free interest rate		1.55	%
Dividend yield		—	%

Summary of stock option activity

	Number of options		Weighted average exercise price		Weighted average remaining contractual life (years)		Aggregate intrinsic value
Outstanding at May 1, 2015		2,824,050	$	12.53
Options granted		—		—
Options exercised		529,595		12.31
Options forfeited		359,349		12.31
Options expired		—		—
Outstanding at April 30, 2016		1,935,106	$	12.37		7.98	$	16,700
Options granted		180,539		23.65
Options exercised		28,000		12.31
Options forfeited		—		—
Options expired		—		—
Outstanding at April 30, 2017		2,087,645	$	13.49		7.23	$	47,336
Exercisable at April 30, 2017		1,211,044		12.48		7.02	$	28,681
Expected to vest after April 30, 2017		876,601	$	14.88		7.52	$	18,655