Summary of Significant Accounting Policies - Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Net loss attributable to stockholders of Inpixon	$ (33,640)	$ (31,438)	$ (69,155)	$ (29,229)
Accretion of Series 7 preferred stock	(2,962)	(2,962)	(8,161)	0
Net loss attributable to common stockholders, basic	(36,602)	(34,400)	(77,316)	(29,229)
Net loss attributable to common stockholders, diluted	$ (36,602)	$ (34,400)	$ (77,316)	$ (29,229)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic (in shares)			107,981,441	28,800,493
Weighted-average shares used to compute net loss per share attributable to common stockholders, diluted (in shares)			107,981,441	28,800,493
Net loss per share attributable to common stockholders, basic (in usd per share)	$ (0.31)	$ (0.34)	$ (0.72)	$ (1.01)
Net loss per share attributable to common stockholders, diluted (in usd per share)	$ (0.31)	$ (0.34)	$ (0.72)	$ (1.01)