Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Aug. 01, 2015	Aug. 02, 2014
Cash flows from operating activities:
Net loss	$ (34,874)	$ (28,449)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation and amortization (including amortization of deferred financing fees)	48,123	51,638
Stock-based compensation expense	3,767	4,607
(Gain) loss on disposal of property and equipment	525	(767)
Decrease in other long-term liabilities	(3,335)	(25,173)
Changes in operating assets and liabilities, net	(3,967)	(140,888)
Net cash flows provided by (used in) operating activities	10,239	(139,032)
Cash flows from investing activities:
Purchases of property and equipment	(34,451)	(33,123)
Net increase in other noncurrent assets	(4,855)	(4,497)
Net cash flows used in investing activities	(39,306)	(37,620)
Cash flows from financing activities:
Net proceeds from Microsoft commercial agreement financing arrangement		21,126
Proceeds from credit facility	0	0
Payments on credit facility	0	0
Proceeds from exercise of common stock options	449	404
Purchase of treasury stock	(1,209)	(680)
Cash dividends paid to preferred shareholders	(3,941)	(4,202)
Inducement fee paid upon conversion of Series J preferred stock	(3,657)
Excess tax benefit from stock-based compensation	259	76
Net cash flows provided by (used in) financing activities	(8,099)	16,724
Net decrease in cash and cash equivalents	(37,166)	(159,928)
Cash and cash equivalents at beginning of period	74,360	340,171
Cash and cash equivalents at end of period	37,194	180,243
Changes in operating assets and liabilities, net:
Receivables, net	(1,273)	23,668
Merchandise inventories	(491,894)	(448,933)
Textbook rental inventories	45,160	42,137
Prepaid expenses and other current assets	(22,787)	(4,372)
Accounts payable and accrued liabilities	466,827	246,612
Changes in operating assets and liabilities, net	(3,967)	(140,888)
Supplemental cash flow information:
Interest	1,564	7,891
Income taxes (net of refunds)	3,273	17,325
Non-cash financing activity:
Accrued dividend for common stockholders	11,687
Accrued dividend for long-term incentive awards	43
Dividend to preferred stockholders paid in shares	1,783
Issuance of common stock upon conversion of Series J preferred stock	$ 200,262
Accrued dividend on redeemable preferred stock		$ 3,942