Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

The changes in the carrying amount of goodwill were as follows (in thousands):


	Full service center-based child care		Back-up care		Educational advisory services		Total
Balance at January 1, 2019	$	1,155,705	$	168,105	$	23,801	$	1,347,611
Additions from acquisitions	15,228		25,350		14,000		54,578
Adjustments to prior year acquisitions	(83)		—		—		(83)
Effect of foreign currency translation	10,380		387		—		10,767
Balance at December 31, 2019	1,181,230		193,842		37,801		1,412,873
Additions from acquisitions	2,118		—		—		2,118
Adjustments to prior year acquisitions	(340)		—		(125)		(465)
Effect of foreign currency translation	(21,135)		(1,741)		—		(22,876)
Balance at June 30, 2020	$	1,161,873	$	192,101	$	37,676	$	1,391,650

The Company also has intangible assets, which consisted of the following at June 30, 2020 and December 31, 2019 (in thousands):


June 30, 2020	Weighted average amortization period	Cost		Accumulated amortization		Net carrying amount
Definite-lived intangible assets:
Customer relationships	14 years	$	402,243	$	(297,036)	$	105,207
Trade names	6 years	10,154		(8,490)		1,664
		412,397		(305,526)		106,871
Indefinite-lived intangible assets:
Trade names	N/A	180,618		—		180,618
		$	593,015	$	(305,526)	$	287,489


December 31, 2019	Weighted average amortization period	Cost		Accumulated amortization		Net carrying amount
Definite-lived intangible assets:
Customer relationships	14 years	$	404,667	$	(283,597)	$	121,070
Trade names	6 years	10,656		(8,144)		2,512
		415,323		(291,741)		123,582
Indefinite-lived intangible assets:
Trade names	N/A	181,091		—		181,091
		$	596,414	$	(291,741)	$	304,673

The Company estimates that it will record amortization expense related to intangible assets existing as of June 30, 2020 as follows (in thousands):


	Estimated amortization expense
Remainder of 2020	$	15,332
2021	$	28,083
2022	$	25,774
2023	$	24,905
2024	$	11,051