Investment in Limited Partnership - Funds on Deposit in the Collection Account (Details) $ in Thousands	3 Months Ended
Feb. 29, 2020 USD ($)
Investments in and Advances to Affiliates [Line Items]
Collections account	$ 26,867
First
Investments in and Advances to Affiliates [Line Items]
Collections account	26,867
Second \| Class A Interests
Investments in and Advances to Affiliates [Line Items]
Collections account	$ 0
Internal rate of return guaranteed to majority owner of partnership investment	11.00%
Principal balance of proceeds	$ 406,000
Third \| Class B Interests
Investments in and Advances to Affiliates [Line Items]
Collections account	0
Fourth
Investments in and Advances to Affiliates [Line Items]
Collections account	$ 0
Fourth \| Class A Interests
Investments in and Advances to Affiliates [Line Items]
Percentage of equity interest sold	72.50%
Fourth \| Class B Interests
Investments in and Advances to Affiliates [Line Items]
Equity investment ownership percentage	27.50%
Fifth
Investments in and Advances to Affiliates [Line Items]
Collections account	$ 0
Fifth \| Class A Interests
Investments in and Advances to Affiliates [Line Items]
Percentage of equity interest sold	72.50%
Fifth \| Class B Interests
Investments in and Advances to Affiliates [Line Items]
Equity investment ownership percentage	27.50%

Annual Internal Rate Of Return Guaranteed To Majority Owner Of Limited Partnership Investments

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