Organization and Summary of Accounting Policies (Policies)	12 Months Ended
Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The preparation of financial statements in conformity with generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and footnotes. Examples include, but are not limited to, estimates of revenue, accounts receivable allowances, professional and general liabilities and the estimate of deferred tax assets or liabilities. Actual results could differ from those estimates. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, as well as interests in partnerships and limited liability companies controlled by the Company through its ownership of a majority voting interest or other rights granted to the Company by contract to manage and control the affiliate's business. All significant intercompany balances and transactions are eliminated in consolidation
Revenues	Revenues The Company's revenues generally relate to contracts with patients in which the performance obligations are to provide health care services. The Company recognizes revenues in the period in which its obligations to provide health care services are satisfied and reports the amount that reflects the consideration the Company expects to be entitled to receive. The contractual relationships with patients, in most cases, also involve a third-party payor (e.g., Medicare, Medicaid and private insurance organizations, including plans offered through the health insurance exchanges) and the transaction prices for the services provided are dependent upon the terms provided by or negotiated with the third-party payors. The payment arrangements with third-party payors for the services provided to the related patients typically specify payments at amounts less than the Company's standard charges. The Company continually reviews the contractual estimation process to consider and incorporate updates to laws and regulations and the frequent changes in managed care contractual terms resulting from contract renegotiations and renewals. Patient service revenues. This revenue is related to charging facility fees in exchange for providing patient care. The fee charged for health care procedures performed in surgical facilities varies depending on the type of service provided, but usually includes all charges for usage of an operating room, a recovery room, special equipment, medical supplies, nursing staff and medications. The fee does not normally include professional fees charged by the patient’s surgeon, anesthesiologist or other attending physician, which are billed directly by such physicians to the patient or third-party payor. However, in several surgical facilities, the Company charges for anesthesia services. Ancillary service revenues include fees for patient visits to the Company's physician practices, pharmacy services and diagnostic tests ordered by physicians. Patient service revenues are recognized as performance obligations are satisfied. Performance obligations are based on the nature of services provided. Typically, the Company recognizes revenue at a point in time in which services are rendered and the Company has no obligation to provide further patient services. Because the Company primarily performs outpatient procedures, performance obligations are generally satisfied same day and revenue is recognized on the date of service. The Company determines the transaction price based on gross charges for services provided, net of estimated contractual adjustments and implicit price concessions. The Company estimates its contractual adjustments and implicit price concessions based on contractual agreements, its discount policies and historical experience of cash collections and historical write-offs. Contractual allowances are recorded at the time of payment and the time of billing for surgical hospitals and ASCs, respectively. Changes in estimated contractual adjustments and discounts are recorded in the period of change. Several states utilize supplemental Medicaid reimbursement programs for the purpose of providing reimbursement to providers to increase base rates to the levels that Medicare would have paid for the same service or for payments that offset a portion of the cost of providing care to Medicaid and indigent patients. These programs are designed with input from the Centers for Medicare & Medicaid Services (“CMS”) and are funded with a combination of state and federal resources, including, in certain instances, fees or taxes levied on the providers. We account for payments under these supplemental programs as variable consideration and estimate the amount using the most likely amount method. Reimbursement under these programs, including the recognition of variable consideration, is reflected in patient service revenues. Taxes or other program-related costs are reflected in other operating expenses. Other service revenues. Other service revenues include management and administrative service fees derived from the non-consolidated facilities that the Company accounts for under the equity method, management of surgical facilities in which it does not own an interest, and management services provided to physician practices for which the Company is not required to provide capital or additional assets and other non-patient services. The management agreements typically require the Company to provide recurring management services over a multi-year period, which are billed and collected on a monthly basis. The fees derived from these management arrangements are based on a predetermined percentage of the revenues of each facility or practice and are recognized in the period in which management services are rendered and billed.
Accounts Receivable	Accounts Receivable Accounts receivable from third-party payors are recorded net of contractual allowances and implicit price concessions, which are estimated based on established fee schedules, relationships with payors, procedure statistics and other objective information including the historical trend of cash collections and contractual write-offs. Contractual allowances are recorded at the time of payment and the time of billing for surgical hospitals and ASCs, respectively. While changes in estimated reimbursement from third-party payors remain a possibility, the Company expects that any such changes would be minimal and, therefore, would not have a material effect on its financial condition or results of operations. Accounts receivable consists of receivables from federal and state agencies (under the Medicare and Medicaid programs), private insurance organizations, employers and patients. Management recognizes that revenues and receivables from government agencies are significant to the Company's operations, but it does not believe that there is significant credit risk associated with these government agencies. Concentration of credit risk with respect to other payors is limited because of the large number of such payors. The Company recognizes that final reimbursement of accounts receivable is subject to final approval by each third-party payor. However, because the Company has contracts with its third-party payors and also verifies insurance coverage of the patient before medical services are rendered, the amounts that are pending approval from third-party payors are not considered significant. Amounts are classified outside of self-pay if the Company has an agreement with the third-party payor or has verified a patient’s coverage prior to services rendered. The Company's policy is to collect co-payments and deductibles prior to providing medical services. Patient services of the Company are primarily non-emergency, which allows the surgical facilities to control the procedures for which third-party reimbursement is sought and obtained. The Company does not require collateral from self-pay patients. The Company's collection policies and procedures are based on the type of payor, size of claim and estimated collection percentage for each patient account. The Company analyzes accounts receivable at each of its surgical facilities to ensure the proper collection and aged category. Collection efforts include direct contact with third-party payors or patients, written correspondence and the use of legal or collection agency assistance, as required.
Impairment of Long-Lived Assets, Goodwill and Intangible Assets	Impairment of Long-Lived Assets, Goodwill and Intangible Assets The Company evaluates the carrying value of long-lived assets when impairment indicators are present or when circumstances indicate that impairment may exist. The evaluation is performed at the lowest level of identifiable cash flow. The Company performs an impairment test by preparing an expected undiscounted cash flow projection. If the projection indicates that the recorded amount of the long-lived asset is not expected to be recovered, the carrying value is reduced to estimated fair value. The cash flow projection and fair value represents management’s best estimate, using appropriate and customary assumptions, projections and methodologies, at the date of evaluation.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities The Company records all derivatives on the balance sheet at fair value and any financing elements treated as debt instruments are recorded at amortized cost. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. The Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.
Non-Controlling Interests	Non-Controlling Interests The physician limited partners and physician minority members of the entities that the Company controls are responsible for the supervision and delivery of medical services. The governance rights of limited partners and minority members are restricted to those that protect their financial interests. Under certain partnership and operating agreements governing these partnerships and limited liability companies, the Company could be removed as the sole general partner or managing member for certain events such as material breach of the partnership or operating agreement, gross negligence or bankruptcy. These protective rights do not preclude consolidation of the respective partnerships and limited liability companies. Ownership interests in consolidated subsidiaries held by parties other than the Company are identified and generally presented in the consolidated financial statements within the equity section but separate from the Company's equity. However, in instances in which certain redemption features that are not solely within the control of the Company are present, classification of non-controlling interests outside of permanent equity is required. Consolidated net income attributable to the Company and to the non-controlling interests are identified and presented on the consolidated statements of operations; changes in ownership interests in which the Company retains a controlling interest are accounted for as equity transactions assuming the Company continues to consolidate related entities. Certain transactions with non-controlling interests are classified within financing activities in the consolidated statements of cash flows. The consolidated financial statements of the Company include all assets, liabilities, revenues and expenses of surgical facilities in which the Company has sufficient ownership and rights to allow the Company to consolidate the surgical facilities. Similar to its investments in non-consolidated affiliates, the Company regularly engages in the purchase and sale of ownership interests with respect to its consolidated subsidiaries that do not result in a change of control. The fair value of non-controlling interests upon acquisition are determined based on certain assumptions, including Level 3 unobservable inputs. Estimates and assumptions include the projected timing and amount of future cash flows as well as discount rates reflecting inherent risk due to lack of control and marketability, among others. Non-Controlling Interests — Redeemable. Each partnership and limited liability company through which the Company owns and operates its surgical facilities is governed by a partnership or operating agreement, respectively. In certain circumstances, the applicable partnership or operating agreements for the Company's surgical facilities provide that the facilities will purchase all of the physician limited partners’ or physician minority members’, as applicable, ownership if certain adverse regulatory events occur, such as it becoming illegal for the physician(s) to own an interest in a surgical facility, refer patients to a surgical facility or receive cash distributions from a surgical facility. Management believes the likelihood of an event occurring that would trigger such purchases was remote as of December 31, 2024. The non-controlling interests—redeemable are reported outside of stockholders' equity in the consolidated balance sheets.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all highly liquid investments with remaining stated maturities of three months or less when purchased to be cash equivalents. The Company maintains its cash and cash equivalent balances at high credit quality financial institutions.
Inventories	Inventories Inventories, which consist primarily of medical and drug supplies, are stated at the lower of cost or market value. Cost is determined using the first-in, first-out method.
Investments in Unconsolidated Affiliates	Investments in Unconsolidated Affiliates Investments in unconsolidated affiliates in which the Company exerts significant influence but does not control or otherwise consolidate are accounted for using the equity method. Equity method investments are initially recorded at cost, unless there is a deconsolidation where the investments are a result of the Company no longer having control of a previously controlled entity but still retaining a non-controlling interest. These investments are included as investments in and advances to affiliates in the accompanying consolidated balance sheets. The Company’s share of the profits and losses from these investments is reported in income from equity investments in the accompanying consolidated statements of operations. The Company monitors its investments for other-than-temporary impairment by considering factors such as current economic and market conditions and the operating performance of the investees and records reductions in carrying values when necessary.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The fair value of a financial instrument is the amount at which the instrument could be exchanged in an orderly transaction between market participants to sell the asset or transfer the liability. The Company uses fair value measurements based on inputs classified into the following hierarchy: •Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities. •Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These may include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. •Level 3: Unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions, depending on the nature of the item being valued. The fair values in the table above were based on Level 2 inputs using quoted prices for identical liabilities in inactive markets. The carrying amounts related to the Company's other long-term debt obligations, including finance lease obligations, approximate their fair values.
Variable Interest Entities	Variable Interest Entities The consolidated financial statements include the accounts of variable interest entities ("VIE") in which the Company is the primary beneficiary under the provisions of the Financial Accounting Standards Board's ("FASB") Accounting Standards Codification 810, "Consolidation". The Company has the power to direct the activities that most significantly impact a VIE's economic performance. Additionally, the Company would absorb the majority of the expected losses from any of these entities should such expected losses occur.
Professional and General and Workers' Compensation Insurance	Professional and General and Workers' Compensation Insurance The Company maintains general liability and professional liability insurance in excess of self-insured retentions through third party commercial insurance carriers in amounts that management believes is sufficient for the Company's operations, although, potentially, some claims may exceed the scope of coverage in effect. The professional liability insurance coverage is on a claims-made basis and the general liability insurance is on an occurrence basis. The Company also maintains workers' compensation insurance, subject to a self-insured retention. The Company expenses the costs under the self-insured retention exposure for general and professional liability and workers' compensation claims which relate to (i) claims made during the policy period, which are offset by insurance recoveries and (ii) an estimate of claims incurred but not yet reported that are expected to be reported after the policy period expires. Reserves and provisions are based upon actuarially determined estimates using individual case-basis valuations and actuarial analysis. Reserves for professional, general and workers' compensation claim liabilities are determined with no regard for expected insurance recoveries and are presented gross on the consolidated balance sheets.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In November 2023, the FASB issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280), Improvements to Reportable Segment Disclosures, which requires enhanced disclosures of significant segment expenses. The ASU is effective for annual periods beginning after December 15, 2023 and interim periods beginning after December 15, 2024. The Company adopted the amendments in this ASU during the year ended December 31, 2024 on a retrospective basis. The adoption of this ASU did not have a material impact on the consolidated financial statements and accompanying notes. For comparative purposes, the Company has reclassified segment disclosures previously reported to conform to current year presentation. See note 14 for additional information related to the Company's reportable segments. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740), Improvements to Income Tax Disclosures, which establishes new requirements for the categorization and disaggregation of information in the rate reconciliation as well as for disaggregation of income taxes paid. The ASU is effective for annual periods beginning after December 15, 2024 and interim periods beginning after December 15, 2025. The amendments in this ASU may be applied prospectively or retrospectively to all periods presented and early adoption is permitted. The Company is planning to adopt in 2025 and there will be no material effect on Note 9. "Income Taxes." In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40), which requires disaggregated disclosure of certain income statement line items that contain specified expense categories, such as purchases of inventory, employee compensation, depreciation, amortization, and depletion. This ASU is effective for fiscal years beginning after December 15, 2026 and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments may be applied either prospectively to financial statements issued for reporting periods after the effective date of this ASU or retrospectively to all prior periods presented in the financial statements. The Company is currently evaluating the impact this ASU will have on our disclosures.
Property and Equipment	Property and Equipment Property and equipment are stated at cost or, if obtained through acquisition, at fair value determined on the date of acquisition. Depreciation is recognized using the straight-line method over the estimated useful lives of the assets, generally 20 to 40 years for buildings and building improvements, three to five years for computers and software and five to seven years for furniture and equipment. Leasehold improvements are depreciated on a straight-line basis over the shorter of the lease term or the estimated useful life of the assets. Routine maintenance and repairs are expensed as incurred, while expenditures that increase capacities or extend useful lives are capitalized. The Company also leases certain facilities and equipment under finance leases. Assets held under finance leases are stated at the present value of lease payments at the inception of the related lease. Such assets are amortized on a straight-line basis over the lesser of the lease term or the remaining useful life of the leased asset.
Goodwill and Intangible Assets	Goodwill Goodwill represents the fair value of the consideration provided in an acquisition over the fair value of net assets acquired and is not amortized. The Company tests its goodwill for impairment in the fourth quarter of each year, or more frequently if certain indicators arise. The Company tests for goodwill impairment at the reporting unit level. During 2024, the Company identified two reporting units, American Group and National Group. The Company compares the carrying value of the net assets of the reporting units to the estimated fair values. To determine the fair value of the reporting units, the Company obtained valuations at the reporting unit level prepared by third-party valuation specialists which typically utilizes a combination of the income and market approaches. Intangible Assets The Company has indefinite-lived intangible assets related to the certificates of need held in jurisdictions where certain of its surgical facilities are located and Medicare licenses. The Company tests these intangible assets for impairment in the fourth quarter of each year, or more frequently if certain indicators arise. The Company also has finite-lived intangible assets related to physician guarantee agreements, non-compete agreements and management rights agreements. Physician guarantees are amortized into salaries and benefits costs in the consolidated statements of operations over the commitment period of the contract, generally two to four years. Non-compete agreements and management rights agreements are amortized into depreciation and amortization expense in the consolidated statements of operations over the service lives of the agreements, typically ranging from two to five years for non-compete agreements and 15 years for the management rights agreements.
Leases	Leases The Company determines if an arrangement is a lease at inception. Right-of-use assets represent the right to use the underlying assets for the lease term and the lease liabilities represent the obligation to make lease payments arising from the leases. Right-of-use assets and liabilities are recognized at commencement date based on the present value of future lease payments over the lease term, which includes only payments that are fixed and determinable at the time of commencement. When readily determinable, the Company uses the interest rate implicit in a lease to determine the present value of future lease payments. For leases where the implicit rate is not readily determinable, the Company's incremental borrowing rate is used. The Company calculates its incremental borrowing rate on a periodic basis using a third-party financial model that estimates the rate of interest the Company would have to pay to borrow an amount equal to the total lease payments on a collateralized basis over a term similar to the lease. The Company applies its incremental borrowing rate using a portfolio approach. The right-of-use asset also includes any lease payments made prior to commencement and is recorded net of any lease incentives received. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options. The Company's operating leases are primarily for real estate, including medical office buildings, and corporate and other administrative offices. The Company's finance leases are primarily for medical equipment and information technology and telecommunications assets. The Company's finance leases also include certain land, buildings and improvements as discussed in Note 3. "Property and Equipment." Real estate lease agreements typically have initial terms of ten years and may include one or more options to renew. Certain leases also include options to purchase the leased property. The useful life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. The majority of the Company's medical equipment leases have a bargain purchase option that is reasonably certain of exercise, so these assets are depreciated over their useful life. The Company's lease agreements do not contain any material residual value guarantees, restrictions or covenants. Certain of the Company's lease agreements require the Company to pay common area maintenance, repairs, property taxes and insurance costs, which are variable amounts based on actual costs incurred during each applicable period. Certain lease agreements also include escalating rent payments that are not fixed at commencement but are based on an index that is determined in future periods over the lease term based on changes in the Consumer Price Index or other measure of cost inflation. These variable components of lease payments are expensed as incurred and are not included in the determination of the right-of-use asset or lease liability.
Earnings Per Share	Earnings Per ShareBasic and diluted earnings (loss) per share is calculated based on the weighted-average number of shares outstanding in each period and dilutive stock options, unvested shares and warrants, to the extent such securities exist and have a dilutive effect on earnings (loss) per share.

Organization and Summary of Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The preparation of financial statements in conformity with generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and footnotes. Examples include, but are not limited to, estimates of revenue, accounts receivable allowances, professional and general liabilities and the estimate of deferred tax assets or liabilities. Actual results could differ from those estimates.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, as well as interests in partnerships and limited liability companies controlled by the Company through its ownership of a majority voting interest or other rights granted to the Company by contract to manage and control the affiliate's business. All significant intercompany balances and transactions are eliminated in consolidation

Revenues

The Company's revenues generally relate to contracts with patients in which the performance obligations are to provide health care services. The Company recognizes revenues in the period in which its obligations to provide health care services are satisfied and reports the amount that reflects the consideration the Company expects to be entitled to receive. The contractual relationships with patients, in most cases, also involve a third-party payor (e.g., Medicare, Medicaid and private insurance organizations, including plans offered through the health insurance exchanges) and the transaction prices for the services provided are dependent upon the terms provided by or negotiated with the third-party payors. The payment arrangements with third-party payors for the services provided to the related patients typically specify payments at amounts less than the Company's standard charges. The Company continually reviews the contractual estimation process to consider and incorporate updates to laws and regulations and the frequent changes in managed care contractual terms resulting from contract renegotiations and renewals.

Patient service revenues. This revenue is related to charging facility fees in exchange for providing patient care. The fee charged for health care procedures performed in surgical facilities varies depending on the type of service provided, but usually includes all charges for usage of an operating room, a recovery room, special equipment, medical supplies, nursing staff and medications. The fee does not normally include professional fees charged by the patient’s surgeon, anesthesiologist or other attending physician, which are billed directly by such physicians to the patient or third-party payor. However, in several surgical facilities, the Company charges for anesthesia services. Ancillary service revenues include fees for patient visits to the Company's physician practices, pharmacy services and diagnostic tests ordered by physicians.

Patient service revenues are recognized as performance obligations are satisfied. Performance obligations are based on the nature of services provided. Typically, the Company recognizes revenue at a point in time in which services are rendered and the Company has no obligation to provide further patient services. Because the Company primarily performs outpatient procedures, performance obligations are generally satisfied same day and revenue is recognized on the date of service.

The Company determines the transaction price based on gross charges for services provided, net of estimated contractual adjustments and implicit price concessions. The Company estimates its contractual adjustments and implicit price concessions based on contractual agreements, its discount policies and historical experience of cash collections and historical write-offs. Contractual allowances are recorded at the time of payment and the time of billing for surgical hospitals and ASCs, respectively. Changes in estimated contractual adjustments and discounts are recorded in the period of change.

Several states utilize supplemental Medicaid reimbursement programs for the purpose of providing reimbursement to providers to increase base rates to the levels that Medicare would have paid for the same service or for payments that offset a portion of the cost of providing care to Medicaid and indigent patients. These programs are designed with input from the Centers for Medicare & Medicaid Services (“CMS”) and are funded with a combination of state and federal resources, including, in certain instances, fees or taxes levied on the providers. We account for payments under these supplemental programs as variable consideration and estimate the amount using the most likely amount method. Reimbursement under these programs, including the recognition of variable consideration, is reflected in patient service revenues. Taxes or other program-related costs are reflected in other operating expenses.

Other service revenues. Other service revenues include management and administrative service fees derived from the non-consolidated facilities that the Company accounts for under the equity method, management of surgical facilities in which it does not own an interest, and management services provided to physician practices for which the Company is not required to provide capital or additional assets and other non-patient services. The management agreements typically require the Company to provide recurring management services over a multi-year period, which are billed and collected on a monthly basis. The fees derived from these management arrangements are based on a predetermined percentage of the revenues of each facility or practice and are recognized in the period in which management services are rendered and billed.

Accounts Receivable

Accounts receivable from third-party payors are recorded net of contractual allowances and implicit price concessions, which are estimated based on established fee schedules, relationships with payors, procedure statistics and other objective information including the historical trend of cash collections and contractual write-offs. Contractual allowances are recorded at the time of payment and the time of billing for surgical hospitals and ASCs, respectively. While changes in estimated reimbursement from third-party payors remain a possibility, the Company expects that any such changes would be minimal and, therefore, would not have a material effect on its financial condition or results of operations.

Accounts receivable consists of receivables from federal and state agencies (under the Medicare and Medicaid programs), private insurance organizations, employers and patients. Management recognizes that revenues and receivables from government agencies are significant to the Company's operations, but it does not believe that there is significant credit risk associated with these government agencies. Concentration of credit risk with respect to other payors is limited because of the large number of such payors.

The Company recognizes that final reimbursement of accounts receivable is subject to final approval by each third-party payor. However, because the Company has contracts with its third-party payors and also verifies insurance coverage of the patient before medical services are rendered, the amounts that are pending approval from third-party payors are not considered significant. Amounts are classified outside of self-pay if the Company has an agreement with the third-party payor or has verified a patient’s coverage prior to services rendered. The Company's policy is to collect co-payments and deductibles prior to providing medical services. Patient services of the Company are primarily non-emergency, which allows the surgical facilities to control the procedures for which third-party reimbursement is sought and obtained. The Company does not require collateral from self-pay patients.

The Company's collection policies and procedures are based on the type of payor, size of claim and estimated collection percentage for each patient account. The Company analyzes accounts receivable at each of its surgical facilities to ensure the proper collection and aged category. Collection efforts include direct contact with third-party payors or patients, written correspondence and the use of legal or collection agency assistance, as required.

Impairment of Long-Lived Assets, Goodwill and Intangible Assets

The Company evaluates the carrying value of long-lived assets when impairment indicators are present or when circumstances indicate that impairment may exist. The evaluation is performed at the lowest level of identifiable cash flow. The Company performs an impairment test by preparing an expected undiscounted cash flow projection. If the projection indicates that the recorded amount of the long-lived asset is not expected to be recovered, the carrying value is reduced to estimated fair value. The cash flow projection and fair value represents management’s best estimate, using appropriate and customary assumptions, projections and methodologies, at the date of evaluation.

Derivative Instruments and Hedging Activities

The Company records all derivatives on the balance sheet at fair value and any financing elements treated as debt instruments are recorded at amortized cost. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting.

The Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

Non-Controlling Interests

The physician limited partners and physician minority members of the entities that the Company controls are responsible for the supervision and delivery of medical services. The governance rights of limited partners and minority members are restricted to those that protect their financial interests. Under certain partnership and operating agreements governing these partnerships and limited liability companies, the Company could be removed as the sole general partner or managing member for certain events such as material breach of the partnership or operating agreement, gross negligence or bankruptcy. These protective rights do not preclude consolidation of the respective partnerships and limited liability companies.

Ownership interests in consolidated subsidiaries held by parties other than the Company are identified and generally presented in the consolidated financial statements within the equity section but separate from the Company's equity. However, in instances in which certain redemption features that are not solely within the control of the Company are present, classification of non-controlling interests outside of permanent equity is required. Consolidated net income attributable to the Company and to the non-controlling interests are identified and presented on the consolidated statements of operations; changes in ownership interests in which the Company retains a controlling interest are accounted for as equity transactions assuming the Company continues to consolidate related entities. Certain transactions with non-controlling interests are classified within financing activities in the consolidated statements of cash flows.

The consolidated financial statements of the Company include all assets, liabilities, revenues and expenses of surgical facilities in which the Company has sufficient ownership and rights to allow the Company to consolidate the surgical facilities. Similar to its investments in non-consolidated affiliates, the Company regularly engages in the purchase and sale of ownership interests with respect to its consolidated subsidiaries that do not result in a change of control. The fair value of non-controlling interests upon acquisition are determined based on certain assumptions, including Level 3 unobservable inputs. Estimates and assumptions include the projected timing and amount of future cash flows as well as discount rates reflecting inherent risk due to lack of control and marketability, among others.

Non-Controlling Interests — Redeemable. Each partnership and limited liability company through which the Company owns and operates its surgical facilities is governed by a partnership or operating agreement, respectively. In certain circumstances, the applicable partnership or operating agreements for the Company's surgical facilities provide that the facilities will purchase all of the physician limited partners’ or physician minority members’, as applicable, ownership if certain adverse regulatory events occur, such as it becoming illegal for the physician(s) to own an interest in a surgical facility, refer patients to a surgical facility or receive cash distributions from a surgical facility. Management believes the likelihood of an event occurring that would trigger such purchases was remote as of December 31, 2024. The non-controlling interests—redeemable are reported outside of stockholders' equity in the consolidated balance sheets.

Cash and Cash Equivalents

The Company considers all highly liquid investments with remaining stated maturities of three months or less when purchased to be cash equivalents. The Company maintains its cash and cash equivalent balances at high credit quality financial institutions.

Inventories

Inventories, which consist primarily of medical and drug supplies, are stated at the lower of cost or market value. Cost is determined using the first-in, first-out method.

Investments in Unconsolidated Affiliates

Investments in unconsolidated affiliates in which the Company exerts significant influence but does not control or otherwise consolidate are accounted for using the equity method. Equity method investments are initially recorded at cost, unless there is a deconsolidation where the investments are a result of the Company no longer having control of a previously controlled entity but still retaining a non-controlling interest. These investments are included as investments in and advances to affiliates in the accompanying consolidated balance sheets. The Company’s share of the profits and losses from these investments is reported in income from equity investments in the accompanying consolidated statements of operations. The Company monitors its investments for other-than-temporary impairment by considering factors such as current economic and market conditions and the operating performance of the investees and records reductions in carrying values when necessary.

Fair Value of Financial Instruments

The fair value of a financial instrument is the amount at which the instrument could be exchanged in an orderly transaction between market participants to sell the asset or transfer the liability. The Company uses fair value measurements based on inputs classified into the following hierarchy:

•Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These may include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

•Level 3: Unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions, depending on the nature of the item being valued.

The fair values in the table above were based on Level 2 inputs using quoted prices for identical liabilities in inactive markets. The carrying amounts related to the Company's other long-term debt obligations, including finance lease obligations, approximate their fair values.

Variable Interest Entities

The consolidated financial statements include the accounts of variable interest entities ("VIE") in which the Company is the primary beneficiary under the provisions of the Financial Accounting Standards Board's ("FASB") Accounting Standards Codification 810, "Consolidation". The Company has the power to direct the activities that most significantly impact a VIE's economic performance. Additionally, the Company would absorb the majority of the expected losses from any of these entities should such expected losses occur.

Professional and General and Workers' Compensation Insurance

The Company maintains general liability and professional liability insurance in excess of self-insured retentions through third party commercial insurance carriers in amounts that management believes is sufficient for the Company's operations, although, potentially, some claims may exceed the scope of coverage in effect. The professional liability insurance coverage is on a claims-made basis and the general liability insurance is on an occurrence basis. The Company also maintains workers' compensation insurance, subject to a self-insured retention.

The Company expenses the costs under the self-insured retention exposure for general and professional liability and workers' compensation claims which relate to (i) claims made during the policy period, which are offset by insurance recoveries and (ii) an estimate of claims incurred but not yet reported that are expected to be reported after the policy period expires. Reserves and provisions are based upon actuarially determined estimates using individual case-basis valuations and actuarial analysis. Reserves for professional, general and workers' compensation claim liabilities are determined with no regard for expected insurance recoveries and are presented gross on the consolidated balance sheets.

Recent Accounting Pronouncements

In November 2023, the FASB issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280), Improvements to Reportable Segment Disclosures, which requires enhanced disclosures of significant segment expenses. The ASU is effective for annual periods beginning after December 15, 2023 and interim periods beginning after December 15, 2024. The Company adopted the amendments in this ASU during the year ended December 31, 2024 on a retrospective basis. The adoption of this ASU did not have a material impact on the consolidated financial statements and accompanying notes. For comparative purposes, the Company has reclassified segment disclosures previously reported to conform to current year presentation. See note 14 for additional information related to the Company's reportable segments.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740), Improvements to Income Tax Disclosures, which establishes new requirements for the categorization and disaggregation of information in the rate reconciliation as well as for disaggregation of income taxes paid. The ASU is effective for annual periods beginning after December 15, 2024 and interim periods beginning after December 15, 2025. The amendments in this ASU may be applied prospectively or retrospectively to all periods presented and early adoption is permitted. The Company is planning to adopt in 2025 and there will be no material effect on Note 9. "Income Taxes."

In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40), which requires disaggregated disclosure of certain income statement line items that contain specified expense categories, such as purchases of inventory, employee compensation, depreciation, amortization, and depletion. This ASU is effective for fiscal years beginning after December 15, 2026 and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments may be applied either prospectively to financial statements issued for reporting periods after the effective date of this ASU or retrospectively to all prior periods presented in the financial statements. The Company is currently evaluating the impact this ASU will have on our disclosures.

Property and Equipment

Property and equipment are stated at cost or, if obtained through acquisition, at fair value determined on the date of acquisition. Depreciation is recognized using the straight-line method over the estimated useful lives of the assets, generally 20 to 40 years for buildings and building improvements, three to five years for computers and software and five to seven years for furniture and equipment. Leasehold improvements are depreciated on a straight-line basis over the shorter of the lease term or the estimated useful life of the assets. Routine maintenance and repairs are expensed as incurred, while expenditures that increase capacities or extend useful lives are capitalized.

The Company also leases certain facilities and equipment under finance leases. Assets held under finance leases are stated at the present value of lease payments at the inception of the related lease. Such assets are amortized on a straight-line basis over the lesser of the lease term or the remaining useful life of the leased asset.

Goodwill and Intangible Assets

Goodwill

Goodwill represents the fair value of the consideration provided in an acquisition over the fair value of net assets acquired and is not amortized.

The Company tests its goodwill for impairment in the fourth quarter of each year, or more frequently if certain indicators arise. The Company tests for goodwill impairment at the reporting unit level. During 2024, the Company identified two reporting units, American Group and National Group.

The Company compares the carrying value of the net assets of the reporting units to the estimated fair values. To determine the fair value of the reporting units, the Company obtained valuations at the reporting unit level prepared by third-party valuation specialists which typically utilizes a combination of the income and market approaches.

Intangible Assets

The Company has indefinite-lived intangible assets related to the certificates of need held in jurisdictions where certain of its surgical facilities are located and Medicare licenses. The Company tests these intangible assets for impairment in the fourth quarter of each year, or more frequently if certain indicators arise. The Company also has finite-lived intangible assets related to physician guarantee agreements, non-compete agreements and management rights agreements. Physician guarantees are amortized into salaries and benefits costs in the consolidated statements of operations over the commitment period of the contract, generally two to four years. Non-compete agreements and management rights agreements are amortized into depreciation and amortization expense in the consolidated statements of operations over the service lives of the agreements, typically ranging from two to five years for non-compete agreements and 15 years for the management rights agreements.

Leases

The Company determines if an arrangement is a lease at inception. Right-of-use assets represent the right to use the underlying assets for the lease term and the lease liabilities represent the obligation to make lease payments arising from the leases. Right-of-use assets and liabilities are recognized at commencement date based on the present value of future lease payments over the lease term, which includes only payments that are fixed and determinable at the time of commencement. When readily determinable, the Company uses the interest rate implicit in a lease to determine the present value of future lease payments. For leases where the implicit rate is not readily determinable, the Company's incremental borrowing rate is used. The Company calculates its incremental borrowing rate on a periodic basis using a third-party financial model that estimates the rate of interest the Company would have to pay to borrow an amount equal to the total lease payments on a collateralized basis over a term similar to the lease. The Company applies its incremental borrowing rate using a portfolio approach. The right-of-use asset also includes any lease payments made prior to commencement and is recorded net of any lease incentives received. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options.

The Company's operating leases are primarily for real estate, including medical office buildings, and corporate and other administrative offices. The Company's finance leases are primarily for medical equipment and information technology and telecommunications assets. The Company's finance leases also include certain land, buildings and improvements as discussed in Note 3. "Property and Equipment." Real estate lease agreements typically have initial terms of ten years and may include one or more options to renew. Certain leases also include options to purchase the leased property. The useful life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. The majority of the

Company's medical equipment leases have a bargain purchase option that is reasonably certain of exercise, so these assets are depreciated over their useful life. The Company's lease agreements do not contain any material residual value guarantees, restrictions or covenants.

Certain of the Company's lease agreements require the Company to pay common area maintenance, repairs, property taxes and insurance costs, which are variable amounts based on actual costs incurred during each applicable period. Certain lease agreements also include escalating rent payments that are not fixed at commencement but are based on an index that is determined in future periods over the lease term based on changes in the Consumer Price Index or other measure of cost inflation. These variable components of lease payments are expensed as incurred and are not included in the determination of the right-of-use asset or lease liability.

Earnings Per Share

Earnings Per ShareBasic and diluted earnings (loss) per share is calculated based on the weighted-average number of shares outstanding in each period and dilutive stock options, unvested shares and warrants, to the extent such securities exist and have a dilutive effect on earnings (loss) per share.