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Quarterly Results of Operations (Parenthetical) (Detail) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010
Schedule Of Quarterly Financial Information [Line Items]
Loss on the sale of the facility	$ 757,000	$ 757,000
Net gain on the sale of Furniture	27,637,000	27,637,000
Write-down on assets held for sale	$ 1,200,000	$ 1,200,000	$ 405,000	$ 1,100,000	$ 1,100,000	$ 500,000

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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- Definition

The difference between the proceeds received and the carrying value of the long-lived asset. If the proceeds received exceeds the carrying value of the long-lived asset, then there is a gain. If the proceeds received is less than the carrying value of the long-lived asset, then there is a loss.

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