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Stockholders' Equity: (Details) (Freehold Raceway Mall and Chandler Fashion Center, USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended			1 Months Ended
	Oct. 24, 2012	Apr. 10, 2012	Dec. 30, 2011	Sep. 30, 2009
Freehold Raceway Mall and Chandler Fashion Center
Stock Warrants:
Aggregate number of common shares available for purchase under warrants				935,358
Value of stock warrants				$ 6,496
Exercise price of stock warrants (in dollars per share)				$ 46.68
Number of shares of warrants exercised	311,786	311,786	311,786
Exercise of stock warrants	$ 3,922	$ 3,448	$ 1,278

X

- Definition

The aggregate number of securities that a class of warrants or rights outstanding gives the holder(s) the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date.

+ References

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Represents the number of shares of warrants exercised.

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- Definition

Increase in additional paid in capital due to warrants issued during the period. Includes also the proceeds of debt securities issued with detachable stock purchase warrants that are allocable to the warrants. These warrants qualify for equity classification and provide the holder with a right to purchase stock from the entity.

+ References

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The exercise price of each class of warrants or rights outstanding.

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The aggregate amount paid by the entity to reacquire the right to purchase equity shares at a predetermined price, usually issued together with corporate debt.

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