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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On April 12, 2019, we sold two buildings and land for an aggregate sale price of $32.5 million and expect to record aggregate gains on disposition of property of $6.7 million. On April 18, 2019, the Company declared a cash dividend of $0.475 per share of Common Stock, which is payable on June 4, 2019 to stockholders of record as of May 13, 2019.