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SHARE-BASED COMPENSATION - CSI Solar Employee Incentive Plan (Details) ¥ / shares in Units, $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |  |  |
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Nov. 30, 2024 ¥ / shares shares | Nov. 30, 2024 $ / shares shares | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Sep. 30, 2010 shares
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Recognized compensation expense |  |  | $ 21,404 | $ 55,335 | $ 9,370 |  |  |  |  |
Maximum aggregate number of shares to be issued | shares |  |  |  |  |  |  |  |  |  | 2,330,000
2006 Share incentive plan |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Recognized compensation expense |  |  | 20,087 | 46,981 | $ 9,370 |  |  |  |  |
CSI Solar employee incentive | CSI Solar Co., Ltd. |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |
Aggregate amount of subscription |  |  |  |  |  |  |  | ¥ 248,000,000 | $ 36,342 |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Recognized compensation expense |  |  |  | $ 8,354 |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Recognized compensation expense |  |  | $ 1,317 |  |  |  |  |  |  |
Exercise price | (per share) | ¥ 5.56 | $ 0.77 |  |  |  |  |  |  |  |
Vesting period (in years) | 4 years | 4 years |  |  |  |  |  |  |  |
Maximum aggregate number of shares to be issued | shares | 54,004,000 | 54,004,000 |  |  |  |  |  |  |  |
Total unrecognized compensation expense related to share-based compensation awards |  |  |  |  |  | ¥ 460,994,000 | $ 64,130 |  |  |
Weighted-average period of recognition of compensation expense |  |  | 2 years 10 months 24 days |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche one |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting percentage | 33.00% | 33.00% |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche one | Minimum |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting period (in years) | 12 months | 12 months |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche one | Maximum |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting period (in years) | 24 months | 24 months |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche two |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting percentage | 33.00% | 33.00% |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche two | Minimum |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting period (in years) | 24 months | 24 months |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche two | Maximum |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting period (in years) | 36 months | 36 months |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche three |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting percentage | 34.00% | 34.00% |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche three | Minimum |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting period (in years) | 36 months | 36 months |  |  |  |  |  |  |  |
CSI Solar Restricted Share Incentive | CSI Solar Co., Ltd. | Tranche three | Maximum |  |  |  |  |  |  |  |  |  |
Company's share-based compensation expense by plan |  |  |  |  |  |  |  |  |  |
Vesting period (in years) | 48 months | 48 months |  |  |  |  |  |  |  |

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