Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2015
Consolidated Statements of Operations and Comprehensive Income (Loss)
Net sales	$ 2,319,146	$ 1,858,182	$ 1,570,085
Cost of sales (exclusive of depreciation and amortization shown separately below)	1,560,575	1,265,018	1,091,114
Gross profit	758,571	593,164	478,971
Operating expenses:
Selling, general and administrative	585,078	470,035	396,155
Depreciation and amortization	69,240	64,215	64,165
Total operating expenses	654,318	534,250	460,320
Operating income	104,253	58,914	18,651
Other (expense) income:
Interest expense	(29,360)	(37,418)	(36,396)
Change in fair value of financial instruments	(382)	(19)	(2,494)
Write-off of debt discount and deferred financing fees	(7,103)
Other income, net	4,132	3,671	1,916
Total other (expense), net	(32,713)	(33,766)	(36,974)
Income (loss) before taxes	71,540	25,148	(18,323)
Provision for (benefit from) income taxes	22,654	12,584	(6,626)
Net income (loss)	$ 48,886	$ 12,564	$ (11,697)
Weighted average shares outstanding:
Basic (in shares)	40,260,405	32,799,098	32,450,401
Diluted (in shares)	41,070,025	33,125,242	32,450,401
Net income (loss) per share:
Basic (in dollars per share)	$ 1.21	$ 0.38	$ (0.36)
Diluted (in dollars per share)	$ 1.19	$ 0.38	$ (0.36)
Comprehensive income (loss):
Net income (loss)	$ 48,886	$ 12,564	$ (11,697)
Increase (decrease) in fair value of financial instrument, net of tax	264	(1,158)	10
Comprehensive income (loss)	$ 49,150	$ 11,406	$ (11,687)