Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

As of December 31, goodwill was as follows:

	Integrated Agencies Network		Media Network		Communication Network		All Other		Corporate		Total
Balance at December 31, 2019	$	88,094	$	177,073	$	33,258	$	26,760	$	—	$	325,185
Acquired goodwill	7,070		235		16,275		195				23,775
Foreign currency translation	—		3,331		—		(566)		—		2,765
Balance at December 31, 2020	$	95,164	$	180,639	$	49,533	$	26,389	$	—	$	351,725
Acquired goodwill	1,058,411		178,994		66,244		—		—		1,303,649
Disposition	—		—		—		(935)		—		(935)
Foreign currency translation	(502)		(1,020)		—		(194)		—		(1,716)
Balance at December 31, 2021	$	1,153,073	$	358,613	$	115,777	$	25,260	$	—	$	1,652,723

Schedule of Intangible Assets and Goodwill

The gross and net amounts of intangible assets other than goodwill as of December 31,

Intangible Assets	2021		2020
Customer relationships – gross	$	875,541	$	154,510
Less accumulated amortization	(92,746)		(56,299)
Customer relationships – net	$	782,795	$	98,211
Trademarks – gross	$	190,162	$	118,647
Less accumulated amortization	(36,775)		(32,431)
Trademarks – net	$	153,387	$	86,216
Noncompete – gross	$	3,989	$	4,005
Less accumulated amortization	(3,386)		(2,980)
Noncompete – net	$	603	$	1,025
Other intangible assets – gross	$	3,717	$	2,893
Less accumulated amortization	(2,807)		(2,310)
Other intangible assets – net	$	910	$	583
Total intangible assets	$	1,073,409	$	280,055
Less accumulated amortization	(135,714)		(94,020)
Total intangible assets – net	$	937,695	$	186,035

Finite-lived Intangible Assets Amortization Expense

The estimated amortization expense for the five succeeding years is as follows:

Year	Amortization
2022	$	92,616
2023	88,118
2024	84,880
2025	82,722
2026	80,466
Thereafter	508,893