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6 - Declared Dividends (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified |  | 3 Months Ended
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Nov. 29, 2012 | Apr. 27, 2013 Class A Common Stock | Jan. 26, 2013 Class A Common Stock | Apr. 27, 2013 Class B Common Stock | Jan. 26, 2013 Class B Common Stock
SpecialDividendsPerShareClassA | $ 1.00 |  |  |  |
SpecialDividendsPerShareClassB | $ 0.65 |  |  |  |
Common Stock, Dividends, Per Share, Declared |  | $ 0.25 | $ 0.25 | $ 0.1625 | $ 0.1625
CashDividendsDeclared | $ 15,000 |  |  |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 + Details
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