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Supplemental Financial Statement Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended	18 Months Ended
	Jun. 01, 2013	Jun. 01, 2013	Dec. 01, 2012	Jun. 01, 2013
Real estate assets
Revenue from an amended agreement related to land sale	$ 177	$ 177
Land \| Tradeport Undeveloped land sale
Real estate assets
Revenue from sale of land	1,590	2,474
Pretax gain on land sale	1,368	2,109
Pretax gain from sale of land recognized			3,942	6,051
Revenue from an amended agreement related to land sale	$ 177	$ 177

The gains (losses) included in results of operations resulting from the sale or disposal of property, plant and equipment, which do not qualify for treatment as discontinued operations. This item does not include any gain (loss) recognized on the sale of oil and gas property or timber property.

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