Segmented Information (Narrative) (Details) - segment	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers [Line Items]
Number of operating segments	1
Approximate percentage of the Company's freight revenues from national accounts	94.00%
Freight [Member] \| Revenue Benchmark [Member] \| Customer Concentration Risk [Member]
Revenues from External Customers [Line Items]
Concentration of risk	4.00%	4.00%	4.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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