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Gain from Sale of Office Premises (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010
Gain (Loss) on Sale of Property Plant Equipment [Abstract]
Gross proceeds from sale of office premises	$ 7,512
Gain from sale of office premises	$ 5,185	$ 0

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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- Definition

The cash inflow from sale of other property, plant and equipment, used to produce goods or deliver services, and not otherwise defined in the taxonomy.

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