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Shareholders' Equity - Summary of Warrant and Deferred Share Unit Activity (Details) - Deferred Share Units	9 Months Ended
	Sep. 30, 2024 shares
Warrant
Outstanding at beginning	30,481
Granted	3,746
Cash settled	(9,207)
Share settled	(4,602)
Outstanding at ending	20,418

X

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options [Abstract]

+ References

No definition available.

+ Details

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X

- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cash Settled In Period

+ References

No definition available.

+ Details

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Namespace Prefix:	wcn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of equity-based instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

No definition available.

+ Details

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X

- Definition

Number of options, including both vested and non-vested options, settled with shares in the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	wcn_
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X

- Details

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Period Type: