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Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies At June 30, 2019, we had 14 outstanding letter of credit obligations totaling $48,111,000 and expiring between 2019 and 2024. At June 30, 2019, we had outstanding construction in progress of $363,160,000 and were committed to providing additional funds of approximately $483,210,000 to complete construction. Purchase obligations include contingent purchase obligations totaling $8,476,000. These contingent purchase obligations relate to unfunded capital improvement obligations and contingent obligations on acquisitions. Rents due from the tenant are increased to reflect the additional investment in the property.