Noncontrolling Interest (Details)	Dec. 31, 2020
TCI
Noncontrolling Interest [Line Items]
Ownership interest	78.40%
IOR
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	81.10%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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