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Organization, Summary of Significant Accounting Policies and New Accounting Standards - Equity Method Investments (Details) - Lower Holding Company
$ in Millions
1 Months Ended
Aug. 31, 2021
USD ($)
Organization, Consolidation and Presentation of Financial Statements [Line Items]  
Equity method investment, ownership percentage 5.00%
Consideration transferred acquisition of equity method investment $ 20.0