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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parentheticals) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jan. 31, 2018 | Apr. 30, 2018
Investment in and advances to unconsolidated joint ventures, reduction in investment | $ 13.6 | $ 13.6

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