Marketable Securities	12 Months Ended
	Dec. 31, 2020
Marketable Securities [Abstract]
Marketable Securities	MARKETABLE SECURITIESAs of December 31, 2020 and 2019, we owned 564,612 and 535,265 common shares, respectively, of Macerich. The increase in shares owned was due to a dividend received in stock from Macerich during the year ended December 31, 2020. As of December 31, 2020 and 2019, the fair value of these shares was $6,024,000 and $14,409,000, respectively, based on Macerich’s closing share price of $10.67 per share and $26.92 per share, respectively. These shares are presented at fair value as “marketable securities” on our consolidated balance sheets and the gains and losses resulting from the mark-to-market of these securities are recognized in current period earnings.