GOODWILL AND INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in goodwill for the nine months ended September 30, 2020 and for the year ended December 31, 2019 were as follows:


	September 30, 2020		December 31, 2019
Balance, beginning of period	$	6,619	$	6,563
Goodwill acquired during the period	258		43
Adjustments to goodwill	3		13



Balance, end of period	$	6,880	$	6,619

Principally all of the Company’s goodwill as of September 30, 2020 and December 31, 2019 was associated with its DIS business.

For the nine months ended September 30, 2020, goodwill acquired during the period was primarily associated with the acquisitions of Blueprint Genetics, Memorial Hermann and MACL (see Note 5) and adjustments to goodwill primarily related to foreign currency translation. For the year ended December 31, 2019, goodwill acquired was principally associated with the acquisitions of certain assets of the clinical laboratory services business of Boyce & Bynum Pathology Laboratories, P.C. and adjustments to goodwill primarily related to the finalization of the purchase price allocation for the acquisition of the U.S. laboratory services business of Oxford Immunotec, Inc. (see Note 6 to the audited consolidated financial statements in the Company's 2019 Annual Report on Form 10-K).

Intangible assets at September 30, 2020 and December 31, 2019 consisted of the following:


	Weighted Average Amortization Period (in years)	September 30, 2020															December 31, 2019
				Cost			Accumulated Amortization			Net			Cost			Accumulated Amortization			Net
Amortizing intangible assets:
Customer-related	17	$	1,479		$	(617)		$	862		$	1,367		$	(556)		$	811
Non-compete agreements	9	3			(2)			1			3			(2)			1
Technology	15	140			(63)			77			104			(56)			48
Other	9	110			(94)			16			110			(85)			25
Total	17	1,732			(776)			956			1,584			(699)			885

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

Other		1			—			1			1			—			1
Total intangible assets		$	1,968		$	(776)		$	1,192		$	1,820		$	(699)		$	1,121

The estimated amortization expense related to amortizable intangible assets for each of the five succeeding fiscal years and thereafter as of September 30, 2020 is as follows:


Year Ending December 31,
Remainder of 2020	$	27
2021	101
2022	98
2023	96
2024	93
2025	91
Thereafter	450
Total	$	956