Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Apr. 28, 2018	Apr. 29, 2017	Apr. 30, 2016
Sales:
Product sales and other	$ 1,984,472	$ 1,641,881	$ 1,581,104
Rental income	219,145	232,481	226,925
Total sales	2,203,617	1,874,362	1,808,029
Product and other cost of sales	1,522,687	1,281,043	1,224,927
Rental cost of sales	123,697	134,258	128,403
Total cost of sales	1,646,384	1,415,301	1,353,330
Gross profit	557,233	459,061	454,699
Selling and administrative expenses	433,746	380,793	374,171
Depreciation and amortization expense	65,586	53,318	52,690
Impairment loss (non-cash)	313,130	0	11,987
Restructuring and other charges	5,429	1,790	8,830
Transaction costs	2,045	9,605	2,398
Operating income	(262,703)	13,555	4,623
Interest expense, net	10,306	3,464	1,872
Income before income taxes	(273,009)	10,091	2,751
Income tax expense	(20,443)	4,730	2,667
Net income (loss)	$ (252,566)	$ 5,361	$ 84
Earnings per share of common stock
Earnings Per Share, Basic	$ (5.40)	$ 0.12	$ 0.00
Earnings Per Share, Diluted	$ (5.40)	$ 0.11	$ 0.00
Weighted average common shares outstanding
Basic	46,763	46,317	46,238
Diluted	46,763	46,763	46,479