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EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2017

EARNINGS PER SHARE

Schedule of computation of basic and diluted earnings (loss) per share

		Years Ended December 31,
		2015			2016			2017
		(In Thousands of US Dollars, except share and per share data)
Numerator:
Net income attributable to Canadian Solar Inc.—basic		$	171,861		$	65,249		$	99,572
Dilutive effect of interest expense of convertible notes			5,275			—			4,649
​	​	​	​	​	​	​	​	​	​	​
Net income attributable to Canadian Solar Inc.—diluted		$	177,136		$	65,249		$	104,221
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​
Denominator:
Denominator for basic calculation—weighted average number of common shares—basic			55,728,903			57,524,349			58,167,004
Diluted effects of share number from share options and RSUs			1,343,162			534,714			547,821
Diluted effects of share number from warrants			20,658			—			—
Dilutive effects of share number from convertible notes			3,333,333			—			2,833,333
​	​	​	​	​	​	​	​	​	​	​
Denominator for diluted calculation—weighted average number of common shares—diluted			60,426,056			58,059,063			61,548,158
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​
Basic earnings per share		$	3.08		$	1.13		$	1.71
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​
Diluted earnings per share		$	2.93		$	1.12		$	1.69
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

Schedule of anti-dilutive shares excluded from the computation of diluted earnings per share

		Years Ended December 31,
		2015			2016			2017
Share options and RSUs			115,017			476,043			372,743
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

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- References

No definition available.

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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