XML 129 R118.htm IDEA: XBRL DOCUMENT v3.20.2
Variable Interest Entities (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Variable Interest Entity [Line Items]    
Assets in partnership $ 25,624,225 $ 24,610,225
Variable Interest Entity Not Primary Beneficiary [Member]    
Variable Interest Entity [Line Items]    
Assets in partnership $ 247,500