Business Segment Information (Net Sales To Major Customers) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Revenue, Major Customer [Line Items]
Net sales	$ 277,716	$ 263,400	$ 303,411	$ 259,987	$ 258,808	$ 241,849	$ 292,281	$ 248,137	$ 1,104,514	$ 1,041,075	$ 1,013,803
McLane Company Inc [Member]
Revenue, Major Customer [Line Items]
Net sales									202,218	186,817	132,872
Wal-Mart Stores, Inc. [Member]
Revenue, Major Customer [Line Items]
Net sales									$ 177,354	$ 175,388	$ 168,976
Customer Concentration Risk [Member] | McLane Company Inc [Member]
Revenue, Major Customer [Line Items]
Net sales as a percentage of consolidated net sales									18.00%	18.00%	13.00%
Customer Concentration Risk [Member] | Wal-Mart Stores, Inc. [Member]
Revenue, Major Customer [Line Items]
Net sales as a percentage of consolidated net sales									16.00%	17.00%	17.00%