GOODWILL AND INTANGIBLE ASSETS

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in goodwill for the six months ended June 30, 2021 and for the year ended December 31, 2020 were as follows:


	June 30, 2021		December 31, 2020
Balance, beginning of period	$	6,873	$	6,619
Goodwill acquired during the period	174		247
Adjustments to goodwill	(2)		7



Balance, end of period	$	7,045	$	6,873

Principally all of the Company’s goodwill as of June 30, 2021 and December 31, 2020 was associated with its DIS business.

For the six months ended June 30, 2021, goodwill acquired was principally associated with the acquisition of the outreach laboratory services business of Mercy Health, and adjustments to goodwill primarily related to foreign currency translation. For the year ended December 31, 2020, goodwill acquired was principally associated with the acquisitions of Blueprint Genetics Oy; Memorial Hermann Diagnostic Laboratories, the outreach laboratory division of Memorial Hermann Health System; and the remaining 56% interest in Mid America Clinical Laboratories, LLC (see Note 6 to the audited

consolidated financial statements in the Company's 2020 Annual Report on Form 10-K). For the year ended December 31, 2020, adjustments to goodwill primarily related to foreign currency translation.

Intangible assets as of June 30, 2021 and December 31, 2020 consisted of the following:


	Weighted Average Amortization Period (in years)	June 30, 2021						December 31, 2020
		Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Amortizing intangible assets:
Customer-related	17	$	1,535	$	(682)	$	853	$	1,479	$	(638)	$	841
Non-compete agreements	9	3		(2)		1		3		(2)		1
Technology	14	143		(70)		73		141		(65)		76
Other	5	108		(99)		9		108		(95)		13
Total	17	1,789		(853)		936		1,731		(800)		931

Intangible assets not subject to amortization:
Trade names		235		—		235		235		—		235

Other		1		—		1		1		—		1
Total intangible assets		$	2,025	$	(853)	$	1,172	$	1,967	$	(800)	$	1,167

The estimated amortization expense related to amortizable intangible assets for each of the five succeeding fiscal years and thereafter as of June 30, 2021 is as follows:


Year Ending December 31,
Remainder of 2021	$	52
2022	102
2023	101
2024	98
2025	96
2026	91
Thereafter	396
Total	$	936