Net Income (Loss) Per Share - Schedule of Basic and Diluted Net Income (Loss) Per Share to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net (loss) income attributable to TOI	$ (16,897)	$ (29,998)	$ (5,453)	$ 19,286	$ (46,895)	$ 13,833
Less: Deemed dividend	0		64		0	64
Net (loss) income attributable to TOI available for distribution	(16,897)		(5,517)		(46,895)	13,769
Net (loss) income attributable to participating securities, basic	(3,077)		(1,013)		(8,572)	2,521
Net (loss) income attributable to common stockholders, basic	$ (13,820)		$ (4,504)		$ (38,323)	$ 11,248
Weighted average common shares outstanding, basic (in shares)	74,119,910		72,996,836		73,786,374	73,123,895
Net (loss) income per share attributable to common stockholders, basic (in dollars per share)	$ (0.19)		$ (0.06)		$ (0.52)	$ 0.15
Net (loss) income attributable to TOI available for distribution	$ (16,897)		$ (5,517)		$ (46,895)	$ 13,769
Net (loss) income attributable to participating securities, diluted	(3,077)		(1,013)		(8,572)	2,441
Net (loss) income attributable to common stockholders, diluted	$ (13,820)		$ (4,504)		$ (38,323)	$ 11,328
Weighted average shares outstanding, diluted (in shares)	74,119,910		72,996,836		73,786,374	76,106,201
Net (loss) income per share attributable to common stockholders, diluted (in dollars per share)	$ (0.19)		$ (0.06)		$ (0.52)	$ 0.15