CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Retained Earnings
Beginning balance at Apr. 27, 2019	$ 689.7	$ 19.2	$ 150.4	$ (13.6)	$ (11.5)	$ 545.2
Beginning balance (in shares) at Apr. 27, 2019		38,333,576
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Earned Portion of Restricted Stock, Net of Tax Withholding	(0.4)					(0.4)
Earned Portion of Restricted Stock, Net of Tax Withholding (in shares)		104,535
Stock-based Compensation Expense	4.0		4.0
Other Comprehensive Income (Loss)	(4.4)			(4.4)
Net Income	52.1					52.1
Dividends on Common Stock	(8.4)					(8.4)
Ending balance at Oct. 26, 2019	732.6	$ 19.2	154.4	(18.0)	(11.5)	588.5
Ending balance (in shares) at Oct. 26, 2019		38,438,111
Beginning balance at Jul. 27, 2019	714.3	$ 19.2	152.9	(15.2)	(11.5)	568.9
Beginning balance (in shares) at Jul. 27, 2019		38,438,111
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based Compensation Expense	1.5		1.5
Other Comprehensive Income (Loss)	(2.8)			(2.8)
Net Income	23.8					23.8
Dividends on Common Stock	(4.2)					(4.2)
Ending balance at Oct. 26, 2019	732.6	$ 19.2	154.4	(18.0)	(11.5)	588.5
Ending balance (in shares) at Oct. 26, 2019		38,438,111
Beginning balance at May. 02, 2020	783.4	$ 19.2	150.7	(26.9)	(11.5)	651.9
Beginning balance (in shares) at May. 02, 2020		38,438,111
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Earned Portion of Restricted Stock, Net of Tax Withholding	(3.9)	$ 0.2	(0.2)			(3.9)
Earned Portion of Restricted Stock, Net of Tax Withholding (in shares)		433,251
Exercise of Stock Options	0.1		0.1
Exercise of Stock Options (in shares)		5,000
Stock-based Compensation Expense	1.9		1.9
Other Comprehensive Income (Loss)	19.0			19.0
Net Income	59.3					59.3
Dividends on Common Stock	(8.4)					(8.4)
Ending balance at Oct. 31, 2020	851.4	$ 19.4	152.5	(7.9)	(11.5)	698.9
Ending balance (in shares) at Oct. 31, 2020		38,876,362
Beginning balance at Aug. 01, 2020	813.8	$ 19.4	151.5	(10.2)	(11.5)	664.6
Beginning balance (in shares) at Aug. 01, 2020		38,876,362
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based Compensation Expense	1.0		1.0
Other Comprehensive Income (Loss)	2.3			2.3
Net Income	38.6					38.6
Dividends on Common Stock	(4.3)					(4.3)
Ending balance at Oct. 31, 2020	$ 851.4	$ 19.4	$ 152.5	$ (7.9)	$ (11.5)	$ 698.9
Ending balance (in shares) at Oct. 31, 2020		38,876,362