Loans Receivable - Collective Pool Basis (Details) $ in Thousands	Jun. 30, 2022 USD ($) loan	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 1,379,065
Allowance for Credit Loss	(165,083)	$ (166,785)	$ (167,432)	$ (224,036)
Total loans receivable, net of credit allowance	$ 1,213,982	$ 1,292,308
No. of Loans | loan	59
Deteriorated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 174,841
Allowance for Credit Loss	(148,438)
Total loans receivable, net of credit allowance	$ 26,403
No. of Loans | loan	3
Collective loan pool
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 212,848
Allowance for Credit Loss	(2,986)
Total loans receivable, net of credit allowance	$ 209,862
No. of Loans | loan	15
Collective loan pool
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 21,317
Allowance for Credit Loss	(300)
Total loans receivable, net of credit allowance	$ 21,017
No. of Loans | loan	2
Collective loan pool
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 22,818
Allowance for Credit Loss	(322)
Total loans receivable, net of credit allowance	$ 22,496
No. of Loans | loan	4
Collective loan pool
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 51,493
Allowance for Credit Loss	(726)
Total loans receivable, net of credit allowance	$ 50,767
No. of Loans | loan	6
Collective loan pool
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 797,110
Allowance for Credit Loss	(10,920)
Total loans receivable, net of credit allowance	$ 786,190
No. of Loans | loan	18
Collective loan pool
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Carrying Value	$ 98,638
Allowance for Credit Loss	(1,391)
Total loans receivable, net of credit allowance	$ 97,247
No. of Loans | loan	11