Business Combinations - Additional Information (Details) $ / shares in Units, $ in Thousands														12 Months Ended
	Nov. 21, 2022 USD ($)	Aug. 30, 2022 USD ($) installment	Jul. 22, 2022 USD ($) installment	Jul. 01, 2022 USD ($)	May 01, 2022 USD ($)	Apr. 30, 2022 USD ($) installment	Feb. 12, 2022 USD ($)	Dec. 09, 2021 USD ($) installment	Nov. 19, 2021 USD ($) installment	Nov. 12, 2021 USD ($) vote installment $ / shares shares	Jun. 28, 2021 USD ($) $ / shares shares	May 01, 2021 USD ($) installment	Feb. 12, 2021 USD ($) installment	Dec. 31, 2022 USD ($) businessCombination installment vote asset_acquisition	Dec. 31, 2021 USD ($) businessCombination asset_acquisition	Dec. 12, 2021 shares
Business Acquisition [Line Items]
Number of businesses acquired | businessCombination														5	5
Number of asset acquisition | asset_acquisition														1	1
Sale of stock, price per share (in usd per share) | $ / shares											$ 10.00
Consideration received on transaction											$ 275,000
Reverse recapitalization, net										$ 762,052
Reverse recapitalization, equity consideration, value										$ 595,468
Reverse recapitalization, equity consideration (in shares) | shares										51,300,000
Reverse recapitalization, equity consideration (in dollars per share) | $ / shares										$ 10.00
Cash acquired through reverse recapitalization										$ 166,584
Proceeds from recapitalization transaction										333,946				$ 0	$ 333,946
Payments as a result of recapitalization transaction										167,510				$ 0	167,510
Reverse recapitalization expenses										39,914
Accrued reverse recapitalization costs										$ 6,769
Number of common stock, vote per share | vote										1				1
Recapitalization exchange ratio										591
Adjustments to additional paid in capital, reverse recapitalization										$ 142,557
Payment of deferred consideration liability for acquisition														$ 509	50
Acquisition and integration expenses paid														790	$ 476
Common Stock
Business Acquisition [Line Items]
Sale of stock issued (in shares) | shares											17,500,000
Preferred Stock
Business Acquisition [Line Items]
Sale of stock issued (in shares) | shares											100,000
Public Warrants
Business Acquisition [Line Items]
Number of securities called by each warrant (in shares) | shares										1						1
Private Warrant Liability
Business Acquisition [Line Items]
Class of warrant forfeited (in warrants) | shares										555,791
Legacy TOI Earnout Shares
Business Acquisition [Line Items]
Contingent consideration, liability (in shares) | shares										12,500,000
Oncology Association PA
Business Acquisition [Line Items]
Weighted average useful life									2 years			10 years
Fair value of total consideration transferred												$ 500
Cash consideration												200
Asset acquisition, deferred cash consideration					$ 100							$ 300
Number of installments | installment												3
Sapra
Business Acquisition [Line Items]
Cash consideration				$ 1
Hashimi
Business Acquisition [Line Items]
Number of installments | installment		3
Payment of deferred consideration liability for acquisition	$ 150
Weighted average useful life	5 years
Raiker
Business Acquisition [Line Items]
Total consideration transferred													$ 1,710
Cash													892
Deferred consideration													$ 818
Number of installments | installment													2
Payment of deferred consideration liability for acquisition							$ 409
Cumulative revenue														12,981
Cumulative net income (loss)														$ 5
Grant
Business Acquisition [Line Items]
Total consideration transferred										$ 849
Cash										849
Deferred consideration										$ 0
Number of installments | installment										2
Payment of deferred consideration liability for acquisition										$ 200
Weighted average useful life										5 years
Orr
Business Acquisition [Line Items]
Total consideration transferred										$ 816
Cash										816
Deferred consideration										$ 0
Number of installments | installment										2
Payment of deferred consideration liability for acquisition										$ 200
Weighted average useful life										5 years
Dave
Business Acquisition [Line Items]
Total consideration transferred									$ 2,000
Cash									2,000
Deferred consideration									$ 0
Number of installments | installment									3
Payment of deferred consideration liability for acquisition									$ 750
Contingent consideration, number of installments paid | installment														2
Yang
Business Acquisition [Line Items]
Total consideration transferred								$ 4,615
Cash								4,615
Deferred consideration								$ 0
Number of installments | installment								2
Payment of deferred consideration liability for acquisition								$ 2,500
Weighted average useful life								5 years
Perkins
Business Acquisition [Line Items]
Total consideration transferred						$ 8,920
Cash						8,920
Deferred consideration						$ 0
Number of installments | installment						2
Payment of deferred consideration liability for acquisition						$ 2,000
Perkins | Trade names
Business Acquisition [Line Items]
Intangibles assets acquired						$ 2,480
Weighted average useful life						10 years
Perkins | Clinical contracts and noncompetes
Business Acquisition [Line Items]
Intangibles assets acquired						$ 70
Weighted average useful life						5 years
Parikh
Business Acquisition [Line Items]
Total consideration transferred			$ 1,908
Cash			1,908
Deferred consideration			$ 0
Number of installments | installment			2
Payment of deferred consideration liability for acquisition			$ 400
Weighted average useful life			3 years
Barreras
Business Acquisition [Line Items]
Total consideration transferred		$ 929
Cash		929
Deferred consideration		$ 0
Number of installments | installment		2
Payment of deferred consideration liability for acquisition		$ 250
Weighted average useful life		5 years