Commitments and Contingencies - Accruals and the Potential Effect of Litigation (Details) $ in Millions, $ in Millions |
Nov. 03, 2022
CAD ($)
|
Dec. 31, 2022
CAD ($)
|
Dec. 31, 2022
USD ($)
|
Jun. 30, 2022
CAD ($)
|
|---|---|---|---|---|
| Commitments and Contingencies Disclosure [Abstract] | ||||
| Gain contingency, unrecorded amount | $ 42.5 | |||
| Gain contingency recognized | $ 42.5 | $ 33.0 | ||
| Gain contingency, damages sought, value | $ 109.0 | |||
| Gain contingency, punitive or aggravated damages, interest, proceedings fees and any other relief sought, value | $ 5.0 |