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Investment in Limited Partnership - Estimated Premiums to be Paid on Life Settlement Contracts (Details) - WE Investment
$ in Thousands
Aug. 31, 2020
USD ($)
Investments in and Advances to Affiliates [Line Items]  
2020 $ 25,197
2021 104,768
2022 100,021
2023 93,316
2024 87,998
Thereafter 572,074
Total $ 983,374