| In millions of CNY, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 |
| | 20-F | 20-F | 20-F | 20-F | 20-F | 20-F |
| Revenues | | | | | | |
| Revenue | 3,921.7 | 2,052.4 | 1,440.1 | 1,091.4 | 1,052.2 | 434.3 |
| Revenue growth | 91.1% | 42.5% | 31.9% | 3.7% | 142.3% | |
| Operating cost and expenses | | | | | | |
| Cost of revenue | 2,958.0 | 1,098.1 | 539.3 | 430.1 | 386.1 | |
| Sales and marketing | 239.3 | 195.9 | 192.8 | 167.2 | 114.1 | |
| General and administrative | 276.2 | 265.7 | 236.6 | 151.1 | 101.3 | |
| Research and development | 70.3 | 62.6 | 57.4 | 46.7 | 19.4 | |
| Net loss on risk assurance liabilities | 197.8 | 2.3 | 34.3 | | | |
| Provision for credit losses and other assets | 203.4 | 109.6 | 56.5 | 20.0 | 0.2 | |
| Total operating cost and expense | 3,945.0 | 1,734.1 | 1,116.8 | 814.7 | 582.2 | |
| Income (loss) from operations | -23.2 | 318.3 | 323.3 | 276.7 | 470.0 | |
| Operating margin | -0.6% | 15.5% | 22.5% | 25.4% | 44.7% | |
| Interest income | 26.4 | 34.9 | 51.6 | | | |
| Loss from equity method investments | | | -0.9 | 42.7 | 4.9 | |
| |
| Net gain (loss) on equity securities | | | | | | |
| Interest expense | -14.5 | -2.8 | -13.5 | | | |
| Foreign exchange gain (loss), net | 1.4 | -8.8 | 5.1 | 1.4 | -25.4 | |
| Other income, net | 41.9 | 49.1 | 41.3 | 32.7 | 15.8 | |
| Other expenses | -6.6 | -0.8 | -5.1 | | | |
| Net income before income taxes | 12.3 | 3,743.3 | 487.8 | 396.0 | 468.5 | |
| Income tax expenses | -20.9 | -369.9 | -83.0 | -89.1 | -119.4 | |
| Net income (loss) | -8.5 | 3,373.4 | 404.9 | 306.9 | 349.1 | |
| Less: Net income attributable to non-controlling interests | | -3.9 | -13.9 | -4.2 | -8.0 | |
| Net income (loss) attributable to Cango Inc.'s shareholders | -8.5 | 3,369.5 | 390.9 | 302.7 | 341.0 | |
| |
| Earnings per share | | | | | | |
| Basic | | | | | | |
| Diluted | | | | | | |
| Earnings per ADS (2 ordinary shares equal 1 ADS): | | | | | | |
| Basic | 0.0 | 0.0 | 0.0 | 0.0 | | |
| Diluted | 0.0 | 0.0 | 0.0 | 0.0 | | |
| |
| Weighted average shares used to compute earnings per share: | | | | | | |
| Basic | | | | | | |
| Diluted | | | | | | |
| Other comprehensive (loss) income, net of tax | | | | | | |
| Unrealized loss on available-for-sale securities | | | -0.1 | | | |
| Reclassification of losses to net loss | | | -0.3 | | | |
| Foreign currency translation adjustment | -72.1 | -234.8 | 10.4 | 109.0 | | |
| |
| Total comprehensive income (loss), net of tax | | | | | | |
| Total comprehensive income attributable to non-controlling interests | | | | | | |
| Total comprehensive income (loss) attributable to Cango Inc.'s shareholders | -80.7 | 3,134.7 | 400.9 | 412.5 | 340.6 | |