Segment Information (Tables)

12 Months Ended

Dec. 31, 2022

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

	Year Ended December 31,
	2022		2021		2020
Revenue:
Integrated Agencies Network	$	1,479,802	$	770,056	$	221,595
Brand Performance Network	757,208		424,632		262,362
Communications Network	430,820		248,832		382,815
All Other	19,962		25,843		21,260
Total Revenue	$	2,687,792	$	1,469,363	$	888,032
Adjusted EBITDA:
Integrated Agencies Network	$	293,643	$	163,596	$	42,332
Brand Performance Network	115,835		65,942		27,697
Communications Network	85,684		45,527		78,562
All Other	(933)		(769)		(1,893)
Corporate	(43,111)		(20,644)		(3,530)
Total Adjusted EBITDA	$	451,118	$	253,652	$	143,168
Depreciation and amortization	$	(131,273)	$	(77,503)	$	(41,025)
Impairment and other losses	(122,179)		(16,240)		—
Stock-based compensation	(33,152)		(75,032)		—
Deferred acquisition consideration	13,405		(18,721)		(4,497)
Other items, net	(18,691)		(21,430)		(13,906)
Total Operating Income	$	159,228	$	44,726	$	83,740

	Year Ended December 31,
	2022		2021		2020
Other Income (expenses):
Interest expense, net	$	(76,062)	$	(31,894)	$	(6,223)
Foreign exchange, net	(2,606)		(3,332)		(721)
Other, net	(7,059)		50,058		544
Income before income taxes and equity in earnings of non-consolidated affiliates	73,501		59,558		77,340
Income tax expense	7,580		23,398		5,937
Income before equity in earnings of non-consolidated affiliates	65,921		36,160		71,403
Equity in income (loss) of non-consolidated affiliates	(79)		(240)		58
Net income	65,842		35,920		71,461
Net income attributable to noncontrolling and redeemable noncontrolling interests	(38,573)		(14,884)		(15,105)
Net income attributable to Stagwell Inc. common shareholders	$	27,269	$	21,036	$	56,356
Depreciation and amortization:
Integrated Agencies Network	$	74,609	$	37,646	$	9,360
Brand Performance Network	33,674		26,031		20,117
Communications Network	10,831		7,553		5,903
All Other	5,234		2,498		3,681
Corporate	6,925		3,775		1,964
Total depreciation and amortization	$	131,273	$	77,503	$	41,025
Stock-based compensation:
Integrated Agencies Network	$	13,774	$	47,190	$	—
Brand Performance Network	5,830		5,251		—
Communications Network	1,797		15,928		—
All Other	41		39		—
Corporate	11,710		6,624		—
Total stock-based compensation	$	33,152	$	75,032	$	—