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Financial Instruments - Summary of Consolidated Financial Ratios (Detail) | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure of detailed information about financial instruments [line items] |  |  |
Leverage Ratio | 2.73% | 4.07% | 4.17%
Coverage Ratio | 5.99% | 3.82% | 3.86%
Less than or Equal to 3.75 Ratio [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Leverage Ratio | 3.75% |  |
Less than or Equal to 6.25 Ratio [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Leverage Ratio |  | 6.25% |
Less than or Equal to 5.25 Ratio [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Leverage Ratio |  |  | 5.25%
Greater than or Equal to 2.75 [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Coverage Ratio | 2.75% |  |
Greater than or Equal to 1.75 Ratio [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Coverage Ratio |  | 1.75% |
Greater than or Equal to 2.50 [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Coverage Ratio |  |  | 2.50%

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