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PROJECT ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
PROJECT ASSETS
Project assets - Development costs, including acquisition and land	$ 907,526	$ 651,920
Project assets - EPC and other construction costs	376,736	205,666
Total project assets	1,284,262	857,586
Current portion	394,376	280,793
Non-current portion	889,886	576,793
Impairment loss of project assets	33,052	16,239	$ 1,674
Interest capitalized - project assets	$ 38,456	$ 27,676	$ 26,439

X

- Definition

Amount of interest costs capitalized for project assets disclosed as an adjusting item to interest costs incurred.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

Represents the impairment charges and write-off for investments in solar power projects.

+ References

No definition available.

+ Details

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Namespace Prefix:	csiq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Definition

Carrying amount as of the balance sheet date of investments in solar power projects.

+ References

No definition available.

+ Details

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Namespace Prefix:	csiq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of capitalized development costs related to investments in solar power projects.

+ References

No definition available.

+ Details

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Namespace Prefix:	csiq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

Represents the amount of capitalized EPC and other cost related to investments in solar power projects.

+ References

No definition available.

+ Details

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Namespace Prefix:	csiq_
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Balance Type:	debit
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- Definition

Carrying amount as of the balance sheet date of investments in solar power projects that are expected to be realized before one year or within the operating cycle, if longer.

+ References

No definition available.

+ Details

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Namespace Prefix:	csiq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Carrying amount as of the balance sheet date of investments in solar power projects, which is not expected to be realized within one year or the operating cycle, if longer.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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