Segment Information (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

	Year Ended December 31,
	2023		2022		2021
	(dollars in thousands)
Revenue:
Integrated Agencies Network	$	1,378,109	$	1,474,970	$	771,123
Brand Performance Network	768,776		757,208		424,632
Communications Network	333,707		435,652		247,766
All Other	46,585		19,962		25,842
Total Revenue	$	2,527,177	$	2,687,792	$	1,469,363
Adjusted EBITDA:
Integrated Agencies Network	$	271,322	$	292,293	$	165,385
Brand Performance Network	96,015		115,835		65,942
Communications Network	51,819		87,032		43,741
All Other	(10,607)		(931)		(772)
Corporate	(48,410)		(43,111)		(20,644)
Total Adjusted EBITDA	$	360,139	$	451,118	$	253,652
Depreciation and amortization	$	(142,831)	$	(131,273)	$	(77,503)
Impairment and other losses	(11,395)		(122,179)		(16,240)
Stock-based compensation	(57,179)		(33,152)		(75,032)
Deferred acquisition consideration	(13,060)		13,405		(18,721)
Other items, net	(45,147)		(18,691)		(21,430)
Total Operating Income	$	90,527	$	159,228	$	44,726
Other Income (expenses):
Interest expense, net	$	(90,644)	$	(76,062)	$	(31,894)
Foreign exchange, net	(2,960)		(2,606)		(3,332)
Gain on sale of business	94,505		—		43,038
Other, net	(359)		(4,975)		7,020
Income before income taxes and equity in earnings of non-consolidated affiliates	91,069		75,585		59,558
Income tax expense	40,557		25,462		23,398
Income before equity in earnings of non-consolidated affiliates	50,512		50,123		36,160
Equity in (loss) of non-consolidated affiliates	(8,870)		(79)		(240)
Net income	41,642		50,044		35,920
Net (income) loss attributable to noncontrolling and redeemable noncontrolling interests	(41,508)		(30,125)		(14,884)
Net income attributable to Stagwell Inc. common shareholders	$	134	$	19,919	$	21,036