Significant Accounting Policies	12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	Significant Accounting Policies The Company’s significant accounting policies are summarized as follows: Principles of Consolidation. The accompanying Audited Consolidated Financial Statements include the accounts of Stagwell Inc. and its domestic and international controlled subsidiaries that are not considered variable interest entities, and variable interest entities for which the Company is the primary beneficiary. Intercompany balances and transactions have been eliminated in consolidation. Use of Estimates. The preparation of the Audited Consolidated Financial Statements in conformity with GAAP requires management to make judgments, estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities including goodwill, intangible assets, contingent deferred acquisition consideration, redeemable noncontrolling interests, deferred tax assets, right-of-use lease assets and the amounts of revenue and expenses reported during the period. These estimates are evaluated on an ongoing basis and are based on historical experience, current conditions and various other assumptions believed to be reasonable under the circumstances. These estimates require the use of assumptions about future performance, which are uncertain at the time of estimation. As of December 31, 2023, the effects of global macroeconomic and geopolitical uncertainty on the Company’s business, results of operations and financial condition continue to evolve. As a result, many of the Company’s estimates and assumptions continue to require increased judgment and carry a higher degree of variability and volatility. As events continue to evolve and additional information becomes available, the Company’s estimates may change materially in the future. Fair Value. The Company applies the fair value measurement guidance for financial assets and liabilities that are required to be measured at fair value and for non-financial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill, right-of-use lease assets and other identifiable intangible assets. See Note 18 of the Notes included herein for additional information regarding fair value measurements. Concentration of Credit Risk. Credit is granted to qualified clients in the ordinary course of business. Due to the diversified nature of the Company’s client base, the Company does not believe that it is exposed to a concentration of credit risk. No sales to an individual client accounted for more than 4% of revenue for the years ended December 31, 2023 and 2022. Cash and Cash Equivalents. The Company’s cash equivalents may comprise investments in overnight interest-bearing deposits, money market instruments and other short-term investments with original maturity dates of three months or less at the time of purchase. The Company has a concentration of credit risk in that there are cash deposits in excess of federally insured amounts and international cash balances that may not qualify for foreign government insurance programs. To date, the Company has not experienced any losses on cash and cash equivalents. Allowance for Doubtful Accounts. Trade receivables are stated at invoiced amounts less allowances for doubtful accounts. The allowances represent expected losses using a current expected credit loss model. The Allowance for doubtful accounts is based on expected future uncollectible accounts receivable and is estimated considering forecasts of future economic conditions in addition to information about past events and current conditions. Allowance for doubtful accounts was $7.1 million and $10.4 million at December 31, 2023 and December 31, 2022, respectively. Transfer of Accounts Receivable. The Company transfers certain of its trade receivable assets to third parties under certain agreements. Per the terms of these agreements, the Company surrenders control over its trade receivables upon transfer. Accordingly, the Company accounts for the transfers as sales of trade receivables by recognizing an increase to cash and a decrease to accounts receivable when the receivables are transferred, with the proceeds being included in cash flows from operating activities in the Consolidated Statements of Cash Flows. The trade receivables transferred to the third parties were $393.9 million, $176.5 million and $42.1 million, during the years ended December 31, 2023, 2022, and 2021, respectively. The amount collected and due to the third parties under these arrangements was $1.8 million as of December 31, 2023 and $5.7 million as of December 31, 2022. No amounts were collected and due to third parties as of December 31, 2021. Fees for these arrangements were recorded in Office and general expenses in the Consolidated Statements of Operations and totaled $5.4 million, $1.8 million, and $0.1 million for the years ended December 31, 2023, 2022, and 2021, respectively. Expenditures Billable to Clients. Expenditures billable to clients consist principally of outside vendor costs incurred on behalf of clients when providing services that have not yet been invoiced to clients. Such amounts are invoiced to clients at various times over the course of the period. Fixed Assets. Fixed assets are stated at cost, net of accumulated depreciation. Computers and furniture and fixtures are depreciated on a straight-line basis over periods of three to ten years. Leasehold improvements are depreciated on a straight-line basis over the lesser of the term of the related lease or the estimated useful life of the asset. Repairs and maintenance costs are expensed as incurred. Leases. The Company recognizes on the Consolidated Balance Sheets, at the time of lease commencement, a right-of-use lease asset and a lease liability, initially measured at the present value of the lease payments. All right-of-use lease assets are reviewed for impairment. See Note 10 of the Notes included herein for further information on leases. Impairment of Long-lived Assets. A long-lived asset or asset group is tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. When such events occur, the Company compares the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset or asset group to the carrying amount of such asset or asset group. If this comparison indicates that there is an impairment, the amount of the impairment is typically calculated using discounted expected future cash flows where observable fair values are not readily determinable. The discount rate applied to these cash flows is based on the Company’s weighted average cost of capital (“WACC”), risk adjusted where appropriate, or other appropriate discount rate. Goodwill. Goodwill (the excess of the acquisition cost over the fair value of the net assets acquired) acquired as a result of a business combination is not amortized but rather tested for impairment, at the reporting unit level, annually as of October 1st of each year, or more frequently if indicators of potential impairment exist. For the annual impairment test, the Company has the option of assessing qualitative factors to determine whether it is more likely than not that the carrying amount of a reporting unit exceeds its fair value or performing a quantitative goodwill impairment test. Qualitative factors considered in the assessment include industry and market considerations, the competitive environment, overall financial performance, changing cost factors such as labor costs, and other factors specific to each reporting unit such as change in management or key personnel. If the Company elects to perform the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is more than its carrying amount, then goodwill is not considered impaired and the quantitative impairment test is not necessary. For reporting units for which the qualitative assessment concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, the Company will perform the quantitative impairment test, which compares the fair value of the reporting unit to its carrying amount. If the fair value of the reporting unit exceeds the carrying amount of the net assets assigned to that reporting unit, goodwill is not considered impaired. However, if the fair value of the reporting unit is lower than the carrying amount of the net assets assigned to the reporting unit, an impairment charge is recognized equal to the excess of the carrying amount over the fair value. Determining the fair value of a reporting unit involves the use of significant estimates and assumptions. The Company generally uses a combination of the income approach, which incorporates the use of the discounted cash flow (“DCF”) method, and the market approach, which incorporates the use of earnings multiples based on market data and comparable companies. The Company applies an equal weighting to the income and market approaches for the impairment test. The income approach and the market approach both require the exercise of significant judgment, including judgment about the amount and timing of expected future cash flows, assumed terminal value and appropriate discount rates. The DCF estimates incorporate expected cash flows that represent a spectrum of the amount and timing of possible cash flows of each reporting unit from a market participant perspective. The expected cash flows are developed from the Company’s long-range planning process using projections of operating results and related cash flows based on assumed revenue growth rates, EBITDA margin, long-term growth rates, and appropriate discount rates based on a reporting unit’s WACC as determined by considering the observable WACC of comparable companies and factors specific to the reporting unit. The terminal value is estimated using a constant growth method which requires an assumption about the expected long-term growth rate. The estimates are based on historical data and experience, industry projections, economic conditions, and the Company’s expectations. Definite Lived Intangible Assets. Definite lived intangible assets are subject to amortization over their useful lives. A straight-line amortization method is used over the estimated useful life which is representative of the pattern of how the economic benefits of the specific intangible asset is consumed. Intangible assets that are subject to amortization are reviewed for potential impairment whenever events or circumstances indicate that carrying amounts may not be recoverable. Recoverability is measured by a comparison of the carrying amount of an intangible asset to estimated undiscounted future cash flows expected to be generated from use of the asset and its eventual disposition. If the total of the undiscounted future cash flows is less than the carrying amount of those assets, a quantitative assessment is performed using an income approach, which incorporates the use of the DCF method. Business Combinations. Business combinations are accounted for using the acquisition method and accordingly, the assets acquired (including identified intangible assets), the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. For each acquisition, the Company undertakes a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. The Company uses several market participant measurements to determine the estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. A substantial portion of the intangible assets value that the Company acquires is the specialized know-how of the workforce, which is treated as part of goodwill and is not required to be valued separately. The majority of the value of the identifiable intangible assets acquired is derived from customer relationships, including the related customer contracts, as well as trademarks. Deferred Acquisition Consideration. Certain acquisitions include an initial payment at the time of closing and provide for future additional contingent purchase price payments. Contingent purchase price obligations for these transactions are recorded as deferred acquisition consideration liabilities on the balance sheet. Arrangements that are not contingent upon future employment are initially measured at the acquisition date fair value and are remeasured at each reporting period. Arrangements that are contingent upon future employment are expensed as earned over the respective vesting (employment) period. These liabilities are derived from the projected performance of the acquired entity. These arrangements may be dependent on future events, such as the growth rate of the earnings of the relevant subsidiary during the contractual period. At each reporting date, the Company models each business’ future performance, such as revenue and EBITDA growth, to estimate the value of each deferred acquisition consideration liability. The liability is adjusted quarterly based on changes in current information affecting each subsidiary’s current operating results and the impact this information will have on future results included in the calculation of the estimated liability. These adjustments are recorded in Office and general expenses in the Consolidated Statements of Operations. Redeemable Noncontrolling Interests. Certain of the Company’s acquisitions include contractual arrangements where the noncontrolling shareholders may require the Company to purchase such noncontrolling shareholders’ incremental ownership interests under certain circumstances. The Company sometimes has similar call options under the same contractual terms. The amount of consideration under these contractual arrangements is not a fixed amount, but rather is dependent upon various valuation formulas, such as the average earnings of the relevant subsidiary through the date of exercise or the growth rate of the earnings of the relevant subsidiary during that period. In the event that an incremental purchase may be required by the Company, the amounts are recorded in Redeemable Noncontrolling Interests in mezzanine equity on the Consolidated Balance Sheets at their acquisition date fair value and adjusted for changes to their estimated redemption value through Retained earnings or Paid-in capital (if at an accumulated deficit) in the Consolidated Balance Sheets (but not less than their initial redemption value), except for foreign currency translation adjustments. These adjustments will not impact the calculation of earnings (loss) per share if the redemption values are less than the estimated fair values. Control to Control Subsidiary Purchases. Transactions involving the purchase, sale or issuance of interests of a subsidiary where control is maintained are recorded as a reduction in the redeemable noncontrolling interests or noncontrolling interests, as applicable. Any difference between the purchase price and noncontrolling interest is recorded to Paid-in capital in the Consolidated Balance Sheets. In circumstances where the purchase of shares of an equity investment results in obtaining control, the existing carrying value of the investment is remeasured to the acquisition date fair value and any gain or loss is recognized in the Consolidated Statement of Operations. Revenue Recognition. The Company’s revenue is recognized when control of the promised services are transferred to our clients, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. See Note 5 of the Notes included herein for additional information. Cost of Services. Cost of services sold primarily consists of staff costs that are directly attributable to the Company’s client engagements, as well as third-party direct costs of production and delivery of services to its clients. Cost of services sold does not include depreciation, amortization, and other office and general expenses that are not directly attributable to the Company’s client engagements. Deferred Financing Costs. The Company uses the straight-line method, which approximates the effective interest method, to amortize deferred financing costs. Income Taxes. The Company accounts for income taxes using the asset and liability method. Under the asset and liability method, deferred tax assets and liabilities are recognized based on the differences between the financial statement carrying value of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates and laws expected to be in effect when the differences are expected to reverse. The Company records associated interest and penalties as a component of income tax expense. The Company records a valuation allowance against deferred income tax assets when management believes it is more likely than not that some portion or all of the deferred income tax assets will not be realized. Management evaluates on a quarterly basis all available positive and negative evidence considering factors such as the reversal of deferred income tax liabilities, taxable income in eligible carryback years, projected future taxable income, the character of the income tax asset, tax planning strategies, changes in tax laws and other factors. The periodic assessment of the net carrying value of the Company’s deferred tax assets under the applicable accounting rules requires significant management judgment. A change to any of these factors could impact the estimated valuation allowance and income tax expense. Stock-Based Compensation. Compensation cost is measured at fair value at the date of grant and is expensed over the service period, generally the award’s vesting period. Certain of our awards are settled in cash (stock appreciation awards) and are recorded at fair value on the date of grant and remeasured at each reporting period. The measurement of the compensation cost for these awards is based on using the Black-Scholes option pricing model and is recorded in Operating income over the service period, in this case the award’s vesting period. The assumption for expected volatility is based on a blended rate which includes historical volatility of a peer group of market participants and historical volatility of the Company as the Company has limited historical volatility. The Company has adopted the straight-line attribution method for determining the compensation cost to be recorded during each accounting period. Forfeitures for all awards are recognized as they occur. The Company commences recording compensation expense related to awards that are based on performance conditions under the straight-line attribution method when it is probable that such performance conditions will be met. Certain of the Company’s subsidiaries grant awards to their employees providing them with an equity interest in the respective subsidiary (the “profits interests awards”). The awards generally provide the employee the right, but not the obligation, to sell their profits interest in the subsidiary to the Company based on a performance-based formula and, in certain cases, receive a profit share distribution. The profits interests awards are primarily settled in cash, with certain awards having stock-settlement provisions at the Company’s discretion. The corresponding liability associated with these profits interests awards is included as a component of Accruals and other liabilities and Other liabilities on the Consolidated Balance Sheets. See Note 15 of the Notes included herein for further details on these awards. Share Buybacks. The Company may purchase shares of Class A Common Stock under its stock repurchase program (the “Repurchase Program”) as well as repurchases outside of the Repurchase Program. The Company accounts for these repurchases by reducing the value of our Class A Common Stock for the par value of the shares repurchased and account for the difference between the price paid for the Class A Common Stock, excluding fees, and the par value of such stock to Paid-in capital. See Note 15 of the Notes included herein for further details of our share buyback plan. Retirement Costs. Several of the Company’s subsidiaries offer employees access to certain defined contribution retirement programs. Under the defined contribution plans, these subsidiaries, in some cases, make annual contributions to participants’ accounts which are subject to vesting. The Company’s contribution expense pursuant to these plans was $20.5 million, $19.0 million, and $10.0 million for the years ended December 31, 2023, 2022, and 2021, respectively. The Company also has a defined benefit pension plan. See Note 12 of the Notes included herein for additional information on the defined benefit plan. Earnings (Loss) per Common Share. Basic earnings (loss) per common share is based upon the weighted average number of common shares outstanding during each period. Diluted earnings (loss) per common share is based on the above, in addition, if dilutive, common share equivalents, which include stock appreciation rights, and unvested restricted stock and restricted stock units as well as shares of Class C Common stock, par value $0.00001 per share (the “Class C Common Stock”). In periods of net loss, all potentially issuable common shares are excluded from diluted net loss per common share because they are anti-dilutive. Foreign Currency Translation. The functional and reporting currency of the Company is the U.S. dollar. Generally, the Company’s subsidiaries use their local currency as their functional currency. Assets and liabilities are translated at the exchange rates in effect at the balance sheet date, and revenues and expenses are translated at the average exchange rates during the period presented. The resulting translation adjustments are recorded as a component of Accumulated other comprehensive income (loss) in the Shareholders’ equity section of our Consolidated Balance Sheets. Foreign currency transaction unrealized and realized gains or losses are recognized as incurred in the Consolidated Statements of Operations in Foreign, exchange, net. Translation of intercompany transactions, which are not intended to be settled, are included in cumulative translation adjustments.

Principles of Consolidation. The accompanying Audited Consolidated Financial Statements include the accounts of Stagwell Inc. and its domestic and international controlled subsidiaries that are not considered variable interest entities, and variable interest entities for which the Company is the primary beneficiary. Intercompany balances and transactions have been eliminated in consolidation.

Use of Estimates. The preparation of the Audited Consolidated Financial Statements in conformity with GAAP requires management to make judgments, estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities including goodwill, intangible assets, contingent deferred acquisition consideration, redeemable noncontrolling interests, deferred tax assets, right-of-use lease assets and the amounts of revenue and expenses reported during the period. These estimates are evaluated on an ongoing basis and are based on historical experience, current conditions and various other assumptions believed to be reasonable under the circumstances. These estimates require the use of assumptions about future performance, which are uncertain at the time of estimation. As of December 31, 2023, the effects of global macroeconomic and geopolitical uncertainty on the Company’s business, results of operations and financial condition continue to evolve. As a result, many of the Company’s estimates and assumptions continue to require increased judgment and carry a higher degree of variability and volatility. As events continue to evolve and additional information becomes available, the Company’s estimates may change materially in the future.

Fair Value. The Company applies the fair value measurement guidance for financial assets and liabilities that are required to be measured at fair value and for non-financial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill, right-of-use lease assets and other identifiable intangible assets. See Note 18 of the Notes included herein for additional information regarding fair value measurements.

Concentration of Credit Risk. Credit is granted to qualified clients in the ordinary course of business. Due to the diversified nature of the Company’s client base, the Company does not believe that it is exposed to a concentration of credit risk. No sales to an individual client accounted for more than 4% of revenue for the years ended December 31, 2023 and 2022.

Cash and Cash Equivalents. The Company’s cash equivalents may comprise investments in overnight interest-bearing deposits, money market instruments and other short-term investments with original maturity dates of three months or less at the time of purchase. The Company has a concentration of credit risk in that there are cash deposits in excess of federally insured amounts and international cash balances that may not qualify for foreign government insurance programs. To date, the Company has not experienced any losses on cash and cash equivalents.

Allowance for Doubtful Accounts. Trade receivables are stated at invoiced amounts less allowances for doubtful accounts. The allowances represent expected losses using a current expected credit loss model. The Allowance for doubtful accounts is based on expected future uncollectible accounts receivable and is estimated considering forecasts of future economic conditions in addition to information about past events and current conditions. Allowance for doubtful accounts was $7.1 million and $10.4 million at December 31, 2023 and December 31, 2022, respectively.

Transfer of Accounts Receivable. The Company transfers certain of its trade receivable assets to third parties under certain agreements. Per the terms of these agreements, the Company surrenders control over its trade receivables upon transfer. Accordingly, the Company accounts for the transfers as sales of trade receivables by recognizing an increase to cash and a decrease to accounts receivable when the receivables are transferred, with the proceeds being included in cash flows from operating activities in the Consolidated Statements of Cash Flows.

The trade receivables transferred to the third parties were $393.9 million, $176.5 million and $42.1 million, during the years ended December 31, 2023, 2022, and 2021, respectively. The amount collected and due to the third parties under these arrangements was $1.8 million as of December 31, 2023 and $5.7 million as of December 31, 2022. No amounts were collected and due to third parties as of December 31, 2021. Fees for these arrangements were recorded in Office and general expenses in the Consolidated Statements of Operations and totaled $5.4 million, $1.8 million, and $0.1 million for the years ended December 31, 2023, 2022, and 2021, respectively.

Expenditures Billable to Clients. Expenditures billable to clients consist principally of outside vendor costs incurred on behalf of clients when providing services that have not yet been invoiced to clients. Such amounts are invoiced to clients at various times over the course of the period.

Fixed Assets. Fixed assets are stated at cost, net of accumulated depreciation. Computers and furniture and fixtures are depreciated on a straight-line basis over periods of three to ten years. Leasehold improvements are depreciated on a straight-line basis over the lesser of the term of the related lease or the estimated useful life of the asset. Repairs and maintenance costs are expensed as incurred.

Leases. The Company recognizes on the Consolidated Balance Sheets, at the time of lease commencement, a right-of-use lease asset and a lease liability, initially measured at the present value of the lease payments. All right-of-use lease assets are reviewed for impairment. See Note 10 of the Notes included herein for further information on leases.

Impairment of Long-lived Assets. A long-lived asset or asset group is tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. When such events occur, the Company compares the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset or asset group to the carrying amount of such asset or asset group. If this comparison indicates that there is an impairment, the amount of the impairment is typically calculated using discounted expected future cash flows where observable fair values are not readily determinable. The discount rate applied to these cash flows is based on the Company’s weighted average cost of capital (“WACC”), risk adjusted where appropriate, or other appropriate discount rate.

Goodwill. Goodwill (the excess of the acquisition cost over the fair value of the net assets acquired) acquired as a result of a business combination is not amortized but rather tested for impairment, at the reporting unit level, annually as of October 1st of each year, or more frequently if indicators of potential impairment exist.

For the annual impairment test, the Company has the option of assessing qualitative factors to determine whether it is more likely than not that the carrying amount of a reporting unit exceeds its fair value or performing a quantitative goodwill impairment test. Qualitative factors considered in the assessment include industry and market considerations, the competitive environment, overall financial performance, changing cost factors such as labor costs, and other factors specific to each reporting unit such as change in management or key personnel.

If the Company elects to perform the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is more than its carrying amount, then goodwill is not considered impaired and the quantitative impairment test is not necessary. For reporting units for which the qualitative assessment concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, the Company will perform the quantitative impairment test, which compares the fair value of the reporting unit to its carrying amount. If the fair value of the reporting unit exceeds the carrying amount of the net assets assigned to that reporting unit, goodwill is not considered impaired. However, if the fair value of the reporting unit is lower than the carrying amount of the net assets assigned to the reporting unit, an impairment charge is recognized equal to the excess of the carrying amount over the fair value.

Determining the fair value of a reporting unit involves the use of significant estimates and assumptions. The Company generally uses a combination of the income approach, which incorporates the use of the discounted cash flow (“DCF”) method, and the market approach, which incorporates the use of earnings multiples based on market data and comparable companies. The Company applies an equal weighting to the income and market approaches for the impairment test. The income approach

The DCF estimates incorporate expected cash flows that represent a spectrum of the amount and timing of possible cash flows of each reporting unit from a market participant perspective. The expected cash flows are developed from the Company’s long-range planning process using projections of operating results and related cash flows based on assumed revenue growth rates, EBITDA margin, long-term growth rates, and appropriate discount rates based on a reporting unit’s WACC as determined by considering the observable WACC of comparable companies and factors specific to the reporting unit. The terminal value is estimated using a constant growth method which requires an assumption about the expected long-term growth rate. The estimates are based on historical data and experience, industry projections, economic conditions, and the Company’s expectations.

Definite Lived Intangible Assets. Definite lived intangible assets are subject to amortization over their useful lives. A straight-line amortization method is used over the estimated useful life which is representative of the pattern of how the economic benefits of the specific intangible asset is consumed. Intangible assets that are subject to amortization are reviewed for potential impairment whenever events or circumstances indicate that carrying amounts may not be recoverable. Recoverability is measured by a comparison of the carrying amount of an intangible asset to estimated undiscounted future cash flows expected to be generated from use of the asset and its eventual disposition. If the total of the undiscounted future cash flows is less than the carrying amount of those assets, a quantitative assessment is performed using an income approach, which incorporates the use of the DCF method.

Business Combinations. Business combinations are accounted for using the acquisition method and accordingly, the assets acquired (including identified intangible assets), the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values.

For each acquisition, the Company undertakes a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. The Company uses several market participant measurements to determine the estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. A substantial portion of the intangible assets value that the Company acquires is the specialized know-how of the workforce, which is treated as part of goodwill and is not required to be valued separately. The majority of the value of the identifiable intangible assets acquired is derived from customer relationships, including the related customer contracts, as well as trademarks.

Deferred Acquisition Consideration. Certain acquisitions include an initial payment at the time of closing and provide for future additional contingent purchase price payments. Contingent purchase price obligations for these transactions are recorded as deferred acquisition consideration liabilities on the balance sheet. Arrangements that are not contingent upon future employment are initially measured at the acquisition date fair value and are remeasured at each reporting period. Arrangements that are contingent upon future employment are expensed as earned over the respective vesting (employment) period. These liabilities are derived from the projected performance of the acquired entity. These arrangements may be dependent on future events, such as the growth rate of the earnings of the relevant subsidiary during the contractual period. At each reporting date, the Company models each business’ future performance, such as revenue and EBITDA growth, to estimate the value of each deferred acquisition consideration liability. The liability is adjusted quarterly based on changes in current information affecting each subsidiary’s current operating results and the impact this information will have on future results included in the calculation of the estimated liability. These adjustments are recorded in Office and general expenses in the Consolidated Statements of Operations.

Redeemable Noncontrolling Interests. Certain of the Company’s acquisitions include contractual arrangements where the noncontrolling shareholders may require the Company to purchase such noncontrolling shareholders’ incremental ownership interests under certain circumstances. The Company sometimes has similar call options under the same contractual terms. The amount of consideration under these contractual arrangements is not a fixed amount, but rather is dependent upon various valuation formulas, such as the average earnings of the relevant subsidiary through the date of exercise or the growth rate of the earnings of the relevant subsidiary during that period. In the event that an incremental purchase may be required by the Company, the amounts are recorded in Redeemable Noncontrolling Interests in mezzanine equity on the Consolidated Balance Sheets at their acquisition date fair value and adjusted for changes to their estimated redemption value through Retained earnings or Paid-in capital (if at an accumulated deficit) in the Consolidated Balance Sheets (but not less than their initial redemption value), except for foreign currency translation adjustments. These adjustments will not impact the calculation of earnings (loss) per share if the redemption values are less than the estimated fair values.

Control to Control Subsidiary Purchases. Transactions involving the purchase, sale or issuance of interests of a subsidiary where control is maintained are recorded as a reduction in the redeemable noncontrolling interests or noncontrolling interests, as applicable. Any difference between the purchase price and noncontrolling interest is recorded to Paid-in capital in the Consolidated Balance Sheets. In circumstances where the purchase of shares of an equity investment results in obtaining

Revenue Recognition. The Company’s revenue is recognized when control of the promised services are transferred to our clients, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. See Note 5 of the Notes included herein for additional information.

Cost of Services. Cost of services sold primarily consists of staff costs that are directly attributable to the Company’s client engagements, as well as third-party direct costs of production and delivery of services to its clients. Cost of services sold does not include depreciation, amortization, and other office and general expenses that are not directly attributable to the Company’s client engagements.

Income Taxes. The Company accounts for income taxes using the asset and liability method. Under the asset and liability method, deferred tax assets and liabilities are recognized based on the differences between the financial statement carrying value of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates and laws expected to be in effect when the differences are expected to reverse. The Company records associated interest and penalties as a component of income tax expense. The Company records a valuation allowance against deferred income tax assets when management believes it is more likely than not that some portion or all of the deferred income tax assets will not be realized. Management evaluates on a quarterly basis all available positive and negative evidence considering factors such as the reversal of deferred income tax liabilities, taxable income in eligible carryback years, projected future taxable income, the character of the income tax asset, tax planning strategies, changes in tax laws and other factors. The periodic assessment of the net carrying value of the Company’s deferred tax assets under the applicable accounting rules requires significant management judgment. A change to any of these factors could impact the estimated valuation allowance and income tax expense.

Certain of our awards are settled in cash (stock appreciation awards) and are recorded at fair value on the date of grant and remeasured at each reporting period. The measurement of the compensation cost for these awards is based on using the Black-Scholes option pricing model and is recorded in Operating income over the service period, in this case the award’s vesting period. The assumption for expected volatility is based on a blended rate which includes historical volatility of a peer group of market participants and historical volatility of the Company as the Company has limited historical volatility.

The Company has adopted the straight-line attribution method for determining the compensation cost to be recorded during each accounting period. Forfeitures for all awards are recognized as they occur. The Company commences recording compensation expense related to awards that are based on performance conditions under the straight-line attribution method when it is probable that such performance conditions will be met.

Certain of the Company’s subsidiaries grant awards to their employees providing them with an equity interest in the respective subsidiary (the “profits interests awards”). The awards generally provide the employee the right, but not the obligation, to sell their profits interest in the subsidiary to the Company based on a performance-based formula and, in certain cases, receive a profit share distribution. The profits interests awards are primarily settled in cash, with certain awards having stock-settlement provisions at the Company’s discretion. The corresponding liability associated with these profits interests awards is included as a component of Accruals and other liabilities and Other liabilities on the Consolidated Balance Sheets. See Note 15 of the Notes included herein for further details on these awards.

Share Buybacks. The Company may purchase shares of Class A Common Stock under its stock repurchase program (the “Repurchase Program”) as well as repurchases outside of the Repurchase Program. The Company accounts for these repurchases by reducing the value of our Class A Common Stock for the par value of the shares repurchased and account for the difference between the price paid for the Class A Common Stock, excluding fees, and the par value of such stock to Paid-in capital. See Note 15 of the Notes included herein for further details of our share buyback plan.

Retirement Costs. Several of the Company’s subsidiaries offer employees access to certain defined contribution retirement programs. Under the defined contribution plans, these subsidiaries, in some cases, make annual contributions to participants’ accounts which are subject to vesting. The Company’s contribution expense pursuant to these plans was $20.5 million, $19.0 million, and $10.0 million for the years ended December 31, 2023, 2022, and 2021, respectively. The Company also has a defined benefit pension plan. See Note 12 of the Notes included herein for additional information on the defined benefit plan.

if dilutive, common share equivalents, which include stock appreciation rights, and unvested restricted stock and restricted stock units as well as shares of Class C Common stock, par value $0.00001 per share (the “Class C Common Stock”). In periods of net loss, all potentially issuable common shares are excluded from diluted net loss per common share because they are anti-dilutive.

Foreign Currency Translation. The functional and reporting currency of the Company is the U.S. dollar. Generally, the Company’s subsidiaries use their local currency as their functional currency. Assets and liabilities are translated at the exchange rates in effect at the balance sheet date, and revenues and expenses are translated at the average exchange rates during the period presented. The resulting translation adjustments are recorded as a component of Accumulated other comprehensive income (loss) in the Shareholders’ equity section of our Consolidated Balance Sheets. Foreign currency transaction unrealized and realized gains or losses are recognized as incurred in the Consolidated Statements of Operations in Foreign, exchange, net. Translation of intercompany transactions, which are not intended to be settled, are included in cumulative translation adjustments.