Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 603,877	$ 260,178
Costs and expenses:
Cost of revenue	223,061	76,453
Sales and marketing	265,513	128,667
Research and development	60,876	19,112
General and administrative	42,962	10,810
Total costs and expenses	592,412	235,042
Income from operations	11,465	25,136
Other income (expense):
Interest expense and loss on settlement of debt	(35,010)	(18,629)
Other income, net	9,790	1,021
Total other expense	(25,220)	(17,608)
Income (loss) before income taxes	(13,755)	7,528
Provision for (benefit from) income taxes	(3,180)	2,864
Net income (loss)	(10,575)	4,664
Add: Net loss attributable to noncontrolling interest	54	0
Net income (loss) attributable to AppLovin	(10,521)	4,664
Less: Net income attributable to participating securities		(1,677)
Net income (loss) attributable to common stock—Basic	(10,521)	2,987
Net income (loss) attributable to common stock—Diluted	$ (10,521)	$ 3,004
Net income (loss) per share attributable to common stockholders:
Basic	$ (0.05)	$ 0.01
Diluted	$ (0.05)	$ 0.01
Weighted average common shares used to compute net income (loss) per share attributable to common stockholders:
Basic	222,408,568	210,898,346
Diluted	222,408,568	214,053,440