Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Condensed Consolidated Statements of Operations and Comprehensive Income (Loss)
Net sales	$ 549,800	$ 452,441
Cost of sales (exclusive of depreciation and amortization shown separately below)	371,215	311,553
Gross profit	178,585	140,888
Operating expenses:
Selling, general and administrative	135,058	110,210
Depreciation and amortization	15,795	16,065
Total operating expenses	150,853	126,275
Operating income	27,732	14,613
Other (expense) income:
Interest expense	(7,577)	(9,257)
Write-off of discount and deferred financing fees	(5,426)
Other income, net	593	510
Total other (expense), net	(12,410)	(8,747)
Income before taxes	15,322	5,866
Provision for (benefit from) income taxes	6,159	2,855
Net income	$ 9,163	$ 3,011
Weighted average shares outstanding:
Basic (in shares)	38,200,597	32,677,418
Diluted (in shares)	38,602,378	32,830,677
Net income per share:
Basic (in dollars per share)	$ 0.24	$ 0.09
Diluted (in dollars per share)	$ 0.24	$ 0.09
Comprehensive loss:
Net income	$ 9,163	$ 3,011
Decrease in fair value of financial instrument, net of tax	(88)	(181)
Comprehensive income	$ 9,075	$ 2,830