CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Thousands		Total	Common Shares	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-Controlling Interests
Beginning balance at Apr. 28, 2018		$ 625,216	$ 46,788	$ 298,948	$ 291,644	$ (25,199)	$ 13,035
Increase (Decrease) in Stockholders' Equity
Net income (loss)		18,951			18,303		648
Other comprehensive income (loss)		(3,965)				(2,737)	(1,228)
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax		(2,009)	160	(42)	(2,127)
Purchases of shares of common stock		(7,944)	(257)	(176)	(7,511)
Stock option and restricted stock expense		2,040		2,040
Cumulative effect adjustment, net of tax | ASU 2016-01 - Investments		0			1,637	(1,637)
Dividends declared and paid		(5,625)			(5,625)
Ending balance at Jul. 28, 2018		626,664	46,691	300,770	296,321	(29,573)	12,455
Beginning balance at Apr. 28, 2018		625,216	46,788	298,948	291,644	(25,199)	13,035
Increase (Decrease) in Stockholders' Equity
Net income (loss)		68,474
Other comprehensive income (loss)		42
Cumulative effect adjustment, net of tax		(1,637)
Ending balance at Jan. 26, 2019		671,786	46,730	306,896	330,491	(26,854)	14,523
Beginning balance at Jul. 28, 2018		626,664	46,691	300,770	296,321	(29,573)	12,455
Increase (Decrease) in Stockholders' Equity
Net income (loss)		20,349			20,012		337
Other comprehensive income (loss)		1,863				1,244	619
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax		6,048	335	5,748	(35)
Purchases of shares of common stock		(3,666)	(121)	(2,456)	(1,089)
Stock option and restricted stock expense		3,639		3,639
Dividends declared and paid		(5,653)			(5,653)
Dividends declared not paid		(13)			(13)
Ending balance at Oct. 27, 2018		649,231	46,905	307,701	309,543	(28,329)	13,411
Increase (Decrease) in Stockholders' Equity
Net income (loss)		29,174			28,731		443
Other comprehensive income (loss)		2,144				1,475	669
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax		(27)	2	(5)	(24)
Purchases of shares of common stock		(5,116)	(177)	(3,295)	(1,644)
Stock option and restricted stock expense		2,495		2,495
Dividends declared and paid		(6,103)			(6,103)
Dividends declared not paid		(12)			(12)
Ending balance at Jan. 26, 2019		671,786	46,730	306,896	330,491	(26,854)	14,523
Beginning balance at Apr. 27, 2019		696,976	46,955	313,168	325,847	(3,462)	14,468
Increase (Decrease) in Stockholders' Equity
Net income (loss)		17,988			18,069		(81)
Other comprehensive income (loss)		767				281	486
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax		(1,417)	126	126	(1,669)
Purchases of shares of common stock		(12,313)	(391)	(3,762)	(8,160)
Stock option and restricted stock expense		1,675		1,675
Cumulative effect adjustment, net of tax | Accounting Standards Update 2016-02	[1]	574			574
Reclassification of certain income tax effects | Accounting Standards Update 2018-02	[2]	0			547	(547)
Dividends declared and paid		(6,112)			(6,112)
Ending balance at Jul. 27, 2019		698,138	46,690	311,207	329,096	(3,728)	14,873
Beginning balance at Apr. 27, 2019		696,976	46,955	313,168	325,847	(3,462)	14,468
Increase (Decrease) in Stockholders' Equity
Net income (loss)		75,608
Other comprehensive income (loss)		2,331
Cumulative effect adjustment, net of tax		(547)
Ending balance at Jan. 25, 2020		729,482	46,075	316,764	353,419	(2,361)	15,585
Beginning balance at Jul. 27, 2019		698,138	46,690	311,207	329,096	(3,728)	14,873
Increase (Decrease) in Stockholders' Equity
Net income (loss)		22,904			22,593		311
Other comprehensive income (loss)		1,619				1,260	359
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax		1,988	84	1,908	(4)
Purchases of shares of common stock		(10,854)	(335)	(1,908)	(8,611)
Stock option and restricted stock expense		3,032		3,032
Dividends declared and paid		(6,039)			(6,039)
Dividends declared not paid		(46)			(46)
Ending balance at Oct. 26, 2019		710,742	46,439	314,239	336,989	(2,468)	15,543
Increase (Decrease) in Stockholders' Equity
Net income (loss)		34,716			34,512		204
Other comprehensive income (loss)		(55)				107	(162)
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax		258	14	281	(37)
Purchases of shares of common stock		(12,182)	(378)	(284)	(11,520)
Stock option and restricted stock expense		2,528		2,528
Dividends declared and paid		(6,490)			(6,490)
Dividends declared not paid		(35)			(35)
Ending balance at Jan. 25, 2020		$ 729,482	$ 46,075	$ 316,764	$ 353,419	$ (2,361)	$ 15,585

[1] Cumulative effect adjustment of deferred gains on prior sale/leaseback transactions as a result of adopting ASU 2016-02.

[2] Income tax effects of the Tax Cuts and Jobs Act are reclassified from Accumulated Other Comprehensive Income ("AOCI") to retained earnings due to the adoption of ASU 2018-02.