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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events From April 1, 2018 to April 26, 2018, we acquired one land parcel for a purchase price of approximately $3,270, excluding costs and credits incurred in conjunction with the acquisition. On April 3, 2018, we entered into a joint venture arrangement with a third party (the "Joint Venture") for the purpose of acquiring, developing, leasing and operating approximately 532 net developable acres of land located in the Phoenix metropolitan area. Through a wholly-owned subsidiary of the Operating Partnership, we own a 49% interest in the Joint Venture. On April 3, 2018, the Joint Venture acquired the land for a purchase price of $49,000.