Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 25, 2014	Apr. 26, 2013	Apr. 27, 2012
Operating activities:
Net Income (Loss)	$ 33,685	$ (821)	$ 72,942
Income (loss) from discontinued operations	2,717	(83,374)	2,757
Income from continuing operations	30,968	82,553	70,185
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	79,456	69,319	60,264
Impairment of assets held for sale	12,380	0	0
Loss on disposal/impairment of held and used fixed assets	4,842	8,265	3,494
Gain on long-term investments	(2,249)	(1,277)	(34)
Deferred compensation	(93)	4,579	1,333
Compensation expense attributable to stock plans	7,105	8,606	5,196
Accretion on long term note receivable	(1,918)	0	0
Deferred income taxes	(6,355)	(7,254)	(7,922)
Deferred rent	143	137	1,063
Amortization of deferred financing costs	364	341	162
Cash provided by (used for) assets and liabilities:
Accounts receivable	515	(6,344)	(946)
Inventories	(2,752)	(1,571)	(465)
Prepaid expenses	951	(2,879)	(1,160)
Accounts payable	6,005	(3,601)	(5,964)
Federal and state income taxes	33,701	(28,055)	1,000
Accrued wages and related liabilities	(8,645)	2,508	(3,460)
Self-insurance	(1,198)	28	(1,302)
Accrued non income taxes	1,497	608	(376)
Deferred revenue	52	590	(933)
Other accrued expenses	10,763	11,516	2,996
Net cash provided by continuing operating activities	165,532	138,069	123,131
Investing activities:
Purchase of property, plant and equipment	(190,995)	(118,200)	(81,863)
Acquisition of business	0	(52,285)	0
Proceeds from sale of property, plant and equipment	8,026	15,512	19,301
Purchase of long-term investments	0	(314)	(469)
Deposits and other	4,902	(350)	(3,829)
Net cash used in continuing investing activities	(178,067)	(155,637)	(66,860)
Financing activities:
Cash dividends paid	(31,885)	(30,214)	(28,262)
Net increase in credit facility	257,465	201,433	0
Payments of debt issuance costs	(2,064)	0	(1,000)
Proceeds from debt	0	1,000	0
Principal payments on long-term debt	0	(135,716)	(13,571)
Prepayment penalty on debt	0	(6,150)	0
Purchase of treasury stock	(224,994)	(63,052)	(70,269)
Proceeds from issuance of stock awards and treasury stock	13,432	8,642	13,103
Cash paid for net shares settled	(4,858)	(2,615)	(1,347)
Excess tax benefits from stock-based compensation	1,756	2,094	697
Net cash provided by (used in) continuing financing activities	8,852	(24,578)	(100,649)
Net cash used in continuing operations	(3,683)	(42,146)	(44,378)
Net cash provided by operating activities of discontinued operations	2,499	6,394	29,719
Net cash provided by (used in) investing activities of discontinued operations	0	8,816	(7,125)
Net cash provided by discontinued operations	2,499	15,210	22,594
Cash and equivalents at the beginning of the period	9,010	35,946	57,730
Cash and equivalents at the end of the period	$ 7,826	$ 9,010	$ 35,946