Stockholders' Equity:

12 Months Ended

Dec. 31, 2014

Stockholders' Equity Note [Abstract]

Stockholders' Equity

Stockholders' Equity:

Stock Warrants:

On September 30, 2009, the Company issued a warrant in connection with its formation of a co-venture to own and operate Freehold Raceway Mall and Chandler Fashion Center (See Note 10—Co-Venture Arrangement). The warrant provided for the purchase of 935,358 shares of the Company's common stock. The warrant was valued at $6,496 and recorded as a credit to additional paid-in capital. The warrant had an exercise price of $46.68 per share, with such price subject to anti-dilutive adjustments. In December 2011, the holders requested a net issue exercise of 311,786 shares of the warrant and the Company elected to deliver a cash payment of $1,278 in exchange for the portion of the warrant exercised. On April 10, 2012, the holders requested a net exercise of an additional 311,786 shares of the warrant and the Company elected to deliver a cash payment of $3,448 in exchange for the portion of the warrant exercised. On October 24, 2012, the holders requested a net exercise of the remaining 311,786 shares of the warrant and the Company elected to deliver a cash payment of $3,923 in exchange for the portion of the warrant exercised.

At-The-Market Stock Offering Program ("ATM Program"):

On August 17, 2012, the Company entered into an equity distribution agreement ("2012 Distribution Agreement") with a number of sales agents (the "2012 ATM Program") to issue and sell, from time to time, shares of common stock, par value $0.01 per share, having an aggregate offering price of up to $500,000 (the “2012 ATM Shares”). Sales of the 2012 ATM Shares, could have been made in privately negotiated transactions and/or any other method permitted by law, including sales deemed to be an “at the market” offering, which includes sales made directly on the New York Stock Exchange or sales made to or through a market maker other than on an exchange. The Company agreed to pay each sales agent a commission that was not to exceed, but could have been lower than, 2% of the gross proceeds of the 2012 ATM Shares sold through such sales agent under the 2012 Distribution Agreement.

During the year ended December 31, 2012, the Company sold 2,961,903 shares of common stock under the 2012 ATM Program in exchange for aggregate gross proceeds of $177,896 and net proceeds of $175,649 after commissions and other transaction costs. During the year ended December 31, 2013, the Company sold 2,456,956 shares of common stock under the 2012 ATM Program in exchange for aggregate gross proceeds of $173,011 and net proceeds of $171,102 after commissions and other transaction costs. The proceeds from the sales were used to pay down the Company's line of credit.

On August 20, 2014, the Company terminated and replaced the 2012 ATM Program with a new ATM Program (the "2014 ATM Program") to sell, from time to time, shares of common stock, par value $0.01 per share, having an aggregate offering price of up to $500,000 (the "ATM Shares"). The terms of the 2014 ATM Program are substantially the same as the 2012 ATM Program.

The Company did not sell any shares under the 2012 ATM Program or the 2014 ATM Program during the year endedDecember 31, 2014.

As of December 31, 2014, $500,000 of the ATM Shares were available to be sold under the 2014 ATM Program. The unsold 2012 ATM Shares are no longer available for issuance. Actual future sales of the ATM Shares under the 2014 ATM Program will depend upon a variety of factors including but not limited to market conditions, the trading price of the Company's common stock and the Company's capital needs. The Company has no obligation to sell the ATM Shares under the 2014 ATM Program.    

Stock Issued to Acquire Property:

On November 28, 2012, the Company issued 535,265 restricted shares of common stock in connection with the acquisition of Kings Plaza Shopping Center (See Note 13—Acquisitions) for a value of $30,000, based on the closing price of the Company's common stock on the date of the transaction.

On November 14, 2014, the Company issued 17,140,845 shares of common stock in connection with the acquisition of the PPRLP Queens Portfolio (See Note 13—Acquisitions) for a value of $1,166,777, based on the closing price of the Company's common stock on the date of the transaction.