Quarterly report pursuant to Section 13 or 15(d)

Variable Interest Entities (Details)

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Variable Interest Entities (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities [1] $ 20,587,650 $ 35,921,622
Liabilities of consolidated variable interest entities [1] 17,567,978 30,951,156
Variable Interest Entity, Primary Beneficiary [Member] | Notes Receivable [Member]    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 395,328 394,502
Variable Interest Entity, Primary Beneficiary [Member] | Cash and Cash Equivalents [Member]    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 0 200
Variable Interest Entity, Primary Beneficiary [Member] | Restricted Cash and Cash Equivalents [Member]    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 35,200 0
Variable Interest Entity, Primary Beneficiary [Member] | Accrued Interest Receivable [Member]    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 197 306
Variable Interest Entity, Primary Beneficiary [Member] | Assets, Total [Member]    
Variable Interest Entity [Line Items]    
Assets of consolidated variable interest entities 430,725 395,008
Variable Interest Entity, Primary Beneficiary [Member] | Term Notes Payable [Member]    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities 395,328 394,502
Variable Interest Entity, Primary Beneficiary [Member] | Accrued Interest Payable [Member]    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities 197 306
Variable Interest Entity, Primary Beneficiary [Member] | Other Liabilities [Member]    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities 35,200 200
Variable Interest Entity, Primary Beneficiary [Member] | Liabilities, Total [Member]    
Variable Interest Entity [Line Items]    
Liabilities of consolidated variable interest entities $ 430,725 $ 395,008
[1] The condensed consolidated balance sheets include assets and liabilities of consolidated variable interest entities, or VIEs. At September 30, 2020 and December 31, 2019, assets of the VIEs totaled $430,725 and $395,008, and liabilities of the VIEs totaled $430,725 and $395,008, respectively. See Note 3 - Variable Interest Entities for additional information.