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Investment in Unconsolidated Affiliate - Unconsolidated Affiliate Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Roll Forward]
Return of capital contribution from unconsolidated affiliate	$ (73)	$ (69)
Investment in JV
Schedule of Equity Method Investments [Roll Forward]
Balance at beginning of period	4,494	4,338
Equity in earnings of unconsolidated affiliate	107	102
Return of capital contribution from unconsolidated affiliate	(73)	(69)
Balance at end of period	$ 4,528	$ 4,371

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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