Significant Accounting Policies Significant Accounting Policies (Equity Method Investments) (Details) - 9 months ended Mar. 31, 2022 $ in Millions, $ in Millions	CAD ($)	USD ($)	USD ($)
Schedule of Equity Method Investments [Line Items]
Equity Method Investments, Committed Capital		$ 3.9
Equity Method Investments			$ 2.3
CAD
Schedule of Equity Method Investments [Line Items]
Equity Method Investments, Committed Capital	$ 5.0
Equity Method Investments	$ 3.0