v3.23.1

BUSINESS COMBINATIONS, GOODWILL AND INTANGIBLE ASSETS - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Business Combination And Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	$ 158.0		$ 158.0
Gross intangible assets	12.5		12.5
Accumulated amortization	3.8		$ 3.4
Amortization of intangible assets	$ 0.4	$ 0.4
Weighted average useful life of finite-lived intangible assets acquired	5 years 3 months 18 days

Business Combination And Goodwill And Intangible Assets Disclosure

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Oak Street Health, Inc. 10-Q