Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

As of December 31, goodwill was as follows:



Goodwill	Global Integrated Agencies			Domestic Creative Agencies			Specialist Communications			Media Services			All Other			Total
Balance at December 31, 2017	$	359,071		$	36,980		$	78,706		$	160,057		$	201,121		$	835,935
Acquired goodwill	—			—			4,816			—			32,776			37,592
Impairment loss recognized	(17,828		)	—			—			(52,041		)	(4,691		)	(74,560		)
Transfer of goodwill between segments	17,081			2,066			—			3,773			(22,920		)	—
Transfer of goodwill to asset held for sale ⁽¹⁾	—			—			—			—			(45,224		)	(45,224		)
Foreign currency translation	(5,169		)	(266		)	(19		)	(443		)	(6,891		)	(12,788		)
Balance at December 31, 2018	$	353,155		$	38,780		$	83,503		$	111,346		$	154,171		$	740,955
Acquired goodwill	—			—			—			—			1,025			1,025
Impairment loss recognized	—			—			—			—			(4,099		)	(4,099		)
Transfer of goodwill between segments ⁽²⁾	(85,766		)	119,097			(5,006		)	(24,119		)	(4,206		)	—
Transfer of goodwill to asset held for sale	—			—			—			—			—			—
Foreign currency translation	775			402			176			—			1,440			2,793
Balance at December 31, 2019	$	268,164		$	158,279		$	78,673		$	87,227		$	148,331		$	740,674

⁽¹⁾ See Note 4 of the Notes to the Consolidated Financial Statements included herein for additional information.

⁽²⁾ Transfers of goodwill relate to changes in segments.

As of December 31, the gross and net amounts of acquired intangible assets other than goodwill were as follows:



	Years Ended December 31,
Intangible Assets	2019			2018
Trademark (indefinite life)	$	14,600		$	14,600
Customer relationships – gross	$	58,211		$	76,365
Less accumulated amortization	(32,671		)	(42,180		)
Customer relationships – net	$	25,540		$	34,185
Other intangibles – gross	$	28,695		$	31,421
Less accumulated amortization	(13,942		)	(12,441		)
Other intangibles – net	$	14,753		$	18,980
Total intangible assets	$	101,506		$	122,386
Less accumulated amortization	(46,613		)	(54,621		)
Total intangible assets – net	$	54,893		$	67,765

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