Earnings Per Share - Summary of Basic and Diluted Net Income (Loss) Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net loss attributable to AppLovin common stockholders	$ (4,518)	$ (115,257)
Net loss attributable to AppLovin common stockholders	$ (4,518)	$ (115,257)
Denominator:
Weighted average common shares used to compute net income (loss) per share attributable to common stock, basic (in shares)	373,160,029	371,967,881
Weighted average common shares used to compute net income (loss) per share attributable to common stock, diluted (in shares)	373,160,029	371,967,881
Net income (loss) per share attributable to common stock, basic (in dollars per share)	$ (0.01)	$ (0.31)
Net income (loss) per share attributable to common stock, diluted (in dollars per share)	$ (0.01)	$ (0.31)