Commitments and Contingencies	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesAt June 30, 2021, we had 12 outstanding letter of credit obligations totaling $22,404,000 and expiring between 2021 and 2024. At June 30, 2021, we had outstanding construction in progress of $458,844,000 and were committed to providing additional funds of approximately $819,168,000 to complete construction. Additionally, at June 30, 2021, we had outstanding investments classified as in substance real estate of $270,164,000 and were committed to provide additional funds of $20,209,000 (see Note 8 for additional information). Purchase obligations at June 30, 2021, include $1,576,800,000 representing a definitive agreement to acquire 86 seniors housing properties from Holiday Retirement, expected to close during the third quarter. Purchase obligations also include $58,673,000 of contingent purchase obligations to fund capital improvements. Rents due from the tenant are increased to reflect the additional investment in the property.