Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Goodwill impairment		$ 233,170		$ 1,367,500
Accumulated impairment losses	$ 2,252,700	2,252,700	$ 2,019,500	2,019,523
Intangible asset impairment charge			43,500
Amortization expense		177,300	186,800	189,100
Trade Names [Member]
Goodwill [Line Items]
Intangible asset impairment charge			$ 43,500	$ 205,000
Branded Agencies [Member]
Goodwill [Line Items]
Goodwill impairment		99,700
Branded Services [Member]
Goodwill [Line Items]
Goodwill impairment		133,500
Accumulated impairment losses	955,800	$ 955,800
Intangible asset impairment charge	$ 42,000