Segment Information (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

	Year Ended December 31, 2024
	Integrated Agencies Network		Brand Performance Network		Communications Network		Total
	(dollars in thousands)
Revenue (1)	$	1,535,445	$	751,884	$	515,140	$	2,802,469
Billable costs	262,692		100,654		181,345		544,691
Staff costs	792,041		397,301		177,629		1,366,971
Administrative costs	128,954		93,155		37,057		259,166
Unbillable and other costs *	72,756		65,901		2,235		140,892
Adjusted EBITDA	279,002		94,873		116,874		490,749
Adjusted EBITDA - All Other							(15,824)
Adjusted EBITDA - Corporate							(64,138)
Total Consolidated Adjusted EBITDA							410,787
Stock-based compensation							52,161
Depreciation and amortization							151,652
Deferred acquisition consideration							22,995
Impairment and other losses							1,715
Other items, net							49,196
Operating Income							133,068
Interest expense, net							(92,317)
Foreign exchange, net							(1,656)
Other, net							(1,372)
							(95,345)
Income before income taxes and equity in earnings of non-consolidated affiliates							37,723
Income tax expense							13,182
Income before equity in earnings of non-consolidated affiliates							24,541
Equity in income of non-consolidated affiliates							503
Net income							25,044
Net income attributable to noncontrolling and redeemable noncontrolling interests							(22,785)
Net income attributable to Stagwell Inc. common shareholders							$	2,259

(1) Total consolidated revenue of $2,841,216 also includes revenue associated with operating segments that do not meet the aggregation criteria and elimination of certain intercompany service and revenue, which amounted to $38,747.

*For each reportable segment, Unbillable and other costs includes costs to fulfill customer contract requirements such as research and subscription related costs, audience measurement, data and analytics, and panels and survey costs; and also includes travel related expenses associated with contract fulfillment.

	Year Ended December 31, 2023
	Integrated Agencies Network		Brand Performance Network		Communications Network		Total
	(dollars in thousands)
Revenue (1)	$	1,418,711	$	728,174	$	333,707	$	2,480,592
Billable costs	185,913		100,364		88,446		374,723
Staff costs	768,846		386,803		159,165		1,314,814
Administrative costs	122,618		87,337		33,664		243,619
Unbillable and other costs *	71,776		55,891		613		128,280
Adjusted EBITDA	269,558		97,779		51,819		419,156
Adjusted EBITDA - All Other							(10,607)
Adjusted EBITDA - Corporate							(48,410)
Total Consolidated Adjusted EBITDA							360,139
Stock-based compensation							57,179
Depreciation and amortization							142,831
Deferred acquisition consideration							13,060
Impairment and other losses							11,395
Other items, net							45,147
Operating Income							90,527
Interest expense, net							(90,644)
Foreign exchange, net							(2,960)
Gain on sale of business							94,505
Other, net							(359)
							542
Income before income taxes and equity in earnings of non-consolidated affiliates							91,069
Income tax expense							40,557
Income before equity in earnings of non-consolidated affiliates							50,512
Equity in loss of non-consolidated affiliates							(8,870)
Net income							41,642
Net income attributable to noncontrolling and redeemable noncontrolling interests							(41,508)
Net income attributable to Stagwell Inc. common shareholders							$	134

(1) Total consolidated revenue of $2,527,177 also includes revenue associated with operating segments that do not meet the aggregation criteria and elimination of certain intercompany service and revenue, which amounted to $46,585.

*For each reportable segment, Unbillable and other costs includes costs to fulfill customer contract requirements such as research and subscription related costs, audience measurement, data and analytics, and panels and survey costs; and also includes travel related expenses associated with contract fulfillment.

	Year Ended December 31, 2022
	Integrated Agencies Network		Brand Performance Network		Communications		All Other		Corporate		Total
	(dollars in thousands)
Revenue	$	1,474,970	$	757,208	$	435,652	$	19,962	$	—	$	2,687,792
Adjusted EBITDA	$	292,293	$	115,835	$	87,032	$	(931)	$	(43,111)	$	451,118
Stock-based compensation											33,152
Depreciation and amortization											131,273
Deferred acquisition consideration											(13,405)
Impairment and other losses											122,179
Other items, net											18,691
Operating Income											159,228
Interest expense, net											(76,062)
Foreign exchange, net											(2,606)
Other, net											(4,975)
											(83,643)
Income before income taxes and equity in earnings of non-consolidated affiliates											75,585
Income tax expense											25,462
Income before equity in earnings of non-consolidated affiliates											50,123
Equity in loss of non-consolidated affiliates											(79)
Net income											50,044
Net income attributable to noncontrolling and redeemable noncontrolling interests											(30,125)
Net income attributable to Stagwell Inc. common shareholders											$	19,919