Basic and Diluted Net Loss per Share -Earnings Per Share Computation (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Numerator: | |||
| Net income (loss) | $ (3,114,860) | $ (6,177,438) | $ 376,116 |
| Less: cumulative undeclared dividends on convertible redeemable preferred shares | (6,714,852) | (9,961,473) | (9,961,473) |
| Less: accretion on convertible redeemable preferred shares to redemption value | (193,465,743) | (50,714,953) | (33,234,811) |
| Net loss attributable to Agora, Inc.’s ordinary shareholders | $ (203,295,455) | $ (66,853,864) | $ (42,820,168) |
| Denominator: | |||
| Weighted average number of ordinary shares—basic and diluted (in shares) | 268,849,967 | 115,716,392 | 109,141,311 |
| Net loss per share attributable to Agora, Inc.’s ordinary shareholders—basic and diluted (in dollars per share) | $ (0.76) | $ (0.58) | $ (0.39) |