Commitments and Contingencies	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesAt September 30, 2023, we had 24 outstanding letter of credit obligations totaling $70,344,000 and expiring between 2023 and 2024. At September 30, 2023, we had outstanding construction in progress of $1,338,076,000 and committed to providing additional funds of approximately $1,480,711,000 to complete construction. Additionally, at September 30, 2023, we had outstanding investments classified as in substance real estate of $789,328,000 and committed to provide additional funds of $134,735,000 (see Note 8 for additional information). Purchase obligations at September 30, 2023 include $588,234,000 representing a definitive agreement to acquire 12 Seniors Housing Operating properties in October 2023 (see Note 3 for additional information) and $73,194,000 of contingent purchase obligations to fund capital improvements. Rents due from the tenants are increased to reflect the additional investment in the property.