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SEGMENT INFORMATION - Each product or service (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues generated from each product |  |  |
Total net revenues | $ 3,476,495 | $ 3,200,583 | $ 3,744,512
CSI Solar Segment | Solar modules |  |  |
Revenues generated from each product |  |  |
Total net revenues | 2,348,724 | 2,012,059 | 1,847,305
CSI Solar Segment | Solar system kits |  |  |
Revenues generated from each product |  |  |
Total net revenues | 157,656 | 116,449 | 93,253
CSI Solar Segment | Battery storage solutions |  |  |
Revenues generated from each product |  |  |
Total net revenues | 7,899 |  |
CSI Solar Segment | China energy (includes electricity sales) |  |  |
Revenues generated from each product |  |  |
Total net revenues | 175,388 | 58,096 | 245,321
CSI Solar Segment | Others |  |  |
Revenues generated from each product |  |  |
Total net revenues | 60,661 | 295,244 | 131,388
Global Energy Segment | Solar power projects |  |  |
Revenues generated from each product |  |  |
Total net revenues | 654,827 | 652,050 | 1,319,021
Global Energy Segment | O&M and asset management services |  |  |
Revenues generated from each product |  |  |
Total net revenues | 26,386 | 19,750 | 13,271
Global Energy Segment | Others |  |  |
Revenues generated from each product |  |  |
Total net revenues | $ 44,954 | $ 46,935 | $ 94,953

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