Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jul. 27, 2013	Jul. 28, 2012
Cash flows from operating activities:
Net loss	$ (87,022)	$ (39,828)
Adjustments to reconcile net loss to net cash flows provided by (used in) operating activities:
Depreciation and amortization (including amortization of deferred financing fees)	56,675	59,381
Stock-based compensation expense	4,222	5,040
Deferred taxes	332	743
Loss on disposal of property and equipment	118	40
Decrease in other long-term liabilities	(3,424)	(7,146)
Changes in operating assets and liabilities, net	31,938	947
Net cash flows provided by operating activities	2,839	19,177
Cash flows from investing activities:
Purchases of property and equipment	(28,287)	(26,457)
Other investing activities, net		(4,100)
Net (increase) decrease in other noncurrent assets	237	(2,943)
Net cash flows used in investing activities	(28,050)	(33,500)
Cash flows from financing activities:
Net proceeds from Microsoft Commercial Agreement financing transaction	21,203
Net decrease in credit facility	(69,500)	(21,400)
Proceeds from exercise of common stock options		1,980
Purchase of treasury stock	(3,077)	(357)
Cash dividends paid to shareholders	(3,942)
Excess tax benefit from stock-based compensation	106	190
Net cash flows used in financing activities	(55,210)	(19,587)
Net decrease in cash and cash equivalents	(80,421)	(33,910)
Cash and cash equivalents at beginning of period	160,470	54,131
Cash and cash equivalents at end of period	80,049	20,221
Changes in operating assets and liabilities, net:
Receivables, net	(1,429)	16,447
Merchandise inventories	(336,960)	(385,581)
Prepaid expenses and other current assets	34,547	29,008
Accounts payable and accrued liabilities	335,780	341,073
Changes in operating assets and liabilities, net	31,938	947
Supplemental cash flow information:
Interest paid	8,185	10,259
Income taxes (net of refunds)	2,690	1,660
Non-cash financing activity:
Accrued dividend on redeemable preferred stock	$ 3,942	$ 3,942