AUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Comprehensive income (loss)
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	$ 41,642	$ 50,044	$ 35,920
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive (loss) - Foreign currency translation adjustment	7,996	(37,773)	(6,000)
Other comprehensive income - Benefit plan adjustment	338	4,088	722
Other Comprehensive Income (Loss), Net of Tax, Total	8,334	(33,685)	(5,278)
Comprehensive income for the period	49,976	16,359	30,642
Comprehensive (income) loss attributable to the noncontrolling and redeemable noncontrolling interests	(47,431)	(6,640)	(14,884)
Comprehensive income (loss) attributable to Stagwell Inc. common shareholders	$ 2,545	$ 9,719	$ 15,758