Consolidated Statement of Changes in Shareholders' Equity - 3 months ended Jul. 30, 2016 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Gains	Retained Earnings	Treasury Stock at Cost
Balance at Apr. 30, 2016	$ 603,510	$ 112	$ 1,738,034	$ 151	$ (24,349)	$ (1,110,438)
Net loss	(14,416)				(14,416)
Postretirement plan liability, net of tax	47			47
Stock options and restricted stock tax expense	(266)		(266)
Stock-based compensation expense	3,075		3,075
Cash dividends declared	(11,116)				(11,116)
Accrued dividends for long-term incentive awards	(126)				(126)
Purchase of treasury stock related to stock-based compensation, 73 shares	(872)					(872)
Treasury stock repurchase plan, 831 shares	(9,743)					(9,743)
Balance at Jul. 30, 2016	$ 570,093	$ 112	$ 1,740,843	$ 198	$ (50,007)	$ (1,121,053)