Quarterly report pursuant to Section 13 or 15(d)

Variable Interest Entities (Details)

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Variable Interest Entities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities [1] $ 15,991,915 $ 19,515,921
Liabilities of consolidated variable interest entities [1] 13,271,199 16,426,995
Variable Interest Entity, Primary Beneficiary [Member] | Notes receivable    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 395,891 395,609
Variable Interest Entity, Primary Beneficiary [Member] | Restricted cash    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 15,942 72,530
Variable Interest Entity, Primary Beneficiary [Member] | Accrued interest receivable    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 226 131
Variable Interest Entity, Primary Beneficiary [Member] | Other assets    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 25,960 28,540
Variable Interest Entity, Primary Beneficiary [Member] | Total Assets    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 438,019 496,810
Variable Interest Entity, Primary Beneficiary [Member] | Term notes payable    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities 395,891 395,609
Variable Interest Entity, Primary Beneficiary [Member] | Revolving credit facilities    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities 20,000 9,000
Variable Interest Entity, Primary Beneficiary [Member] | Accrued interest payable    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities 286 156
Variable Interest Entity, Primary Beneficiary [Member] | Other liabilities    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities 15,882 72,505
Variable Interest Entity, Primary Beneficiary [Member] | Total Liabilities    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities $ 432,059 $ 477,270
[1] The condensed consolidated balance sheets include assets and liabilities of consolidated variable interest entities, or VIEs. At March 31, 2021 and December 31, 2020, assets of the VIEs totaled $438,019 and $496,810, and liabilities of the VIEs totaled $432,059 and $477,270, respectively. See Note 3 - Variable Interest Entities for additional information.