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Business Segment Information (Net Sales To Major Customers) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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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%

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