Mortgage Notes Receivable - Information pertaining to mortgage notes receivable (Details) - USD ($) $ in Thousands		Mar. 31, 2022		Dec. 31, 2021		Mar. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Total principal outstanding for our mortgage notes receivable		$ 940,078		$ 911,744
Adoption of ASU 2016-13		8,647	[1]	10,394	[2]	$ 10,663	$ 10,590
Mortgage notes receivable, net		931,431		901,350
Mortgage notes receivables
Loans and Leases Receivable Disclosure [Line Items]
Total loan commitments		1,586,295		1,489,055
Construction holdbacks		591,876		524,462
Interest reserves		41,709		39,880
Total principal outstanding for our mortgage notes receivable		952,710		924,713
Adoption of ASU 2016-13	[3]	8,647		10,394
Deferred origination and amendment fees		12,632		12,969
Mortgage notes receivable, net		931,431		901,350
Unfunded Loan Commitment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Adoption of ASU 2016-13	[4]	1,097		904		947	0
Unfunded Loan Commitment [Member] | Accounts payable and accrued liabilities
Loans and Leases Receivable Disclosure [Line Items]
Adoption of ASU 2016-13		1,100
Funded And Unfunded Loan Commitment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Adoption of ASU 2016-13		$ 9,744		$ 11,298		$ 11,610	$ 10,590

[1] Includes $0.9 million in loan specific allowances for loans deemed collateral dependent based on the excess amortized cost over the fair value of the underlying collateral. In addition, $1.1 million of the CECL allowance is excluded from this table because it relates to unfunded commitments and has been recorded as a liability under accounts payable and accrued liabilities in our condensed consolidated balance sheet.

[2] Includes $0.7 million in loan specific allowances for loans deemed collateral dependent based on the excess amortized cost over the fair value of the underlying collateral.

[3] As of March 31, 2022, $1.1 million of the allowance is excluded from this table because it relates to unfunded commitments and has been recorded as a liability under accounts payable and accrued liabilities in our condensed consolidated balance sheet.

[4] CECL allowance related to unfunded commitments is presented as a liability under accounts payable and accrued liabilities in our condensed consolidated balance sheet.