Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Other Intangible Assets

Schedule of goodwill allocated to the Company's reportable segments

	Patient Care						Products & Services						Consolidated
	Goodwill,		Accum.		Goodwill,		Goodwill,		Accum.		Goodwill,		Goodwill,		Accum.		Goodwill,
(in thousands)	Gross		Impairment		Net		Gross		Impairment		Net		Gross		Impairment		Net
Balance at December 31, 2018	$	627,410	$	(428,668)	$	198,742	$	139,299	$	(139,299)	$	—	$	766,709	$	(567,967)	$	198,742
Additions from acquisitions		35,926		—		35,926		—		—		—		35,926		—		35,926
Measurement period adjustments (1)		(2,424)		—		(2,424)		—		—		—		(2,424)		—		(2,424)
Balance at December 31, 2019		660,912		(428,668)		232,244		139,299		(139,299)		—		800,211		(567,967)		232,244
Additions from acquisitions		45,144		—		45,144		—		—		—		45,144		—		45,144
Measurement period adjustments(2)		(165)		—		(165)		—		—		—		(165)		—		(165)
Balance at December 31, 2020	$	705,891	$	(428,668)	$	277,223	$	139,299	$	(139,299)	$	—	$	845,190	$	(567,967)	$	277,223

(1) Measurement period adjustments relate to 2019 and 2018 acquisitions of approximately $2.1 million and $0.3 million, respectively, and are primarily attributable to adjustments to the preliminary allocations of customer relationship intangibles.

(2) Measurement period adjustments relate to 2020 and prior years acquisitions of approximately $0.2 million and are primarily attributable to adjustments to the preliminary allocations of acquired assets.

Schedule of balances related to indefinite-lived intangible assets

	As of December 31, 2020
	Gross
	Carrying		Accumulated		Accumulated		Net Carrying
(in thousands)	Amount		Amortization		Impairment		Amount
Customer lists	$	16,879	$	(5,845)	$	—	$	11,034
Trade name		255		(176)		—		79
Patents and other intangibles		9,011		(5,810)		—		3,201
Definite-lived intangible assets		26,145		(11,831)		—		14,314
Indefinite-lived trade name		9,070		—		(4,953)		4,117
Total other intangible assets	$	35,215	$	(11,831)	$	(4,953)	$	18,431

	As of December 31, 2019
	Gross
	Carrying		Accumulated		Accumulated		Net Carrying
(in thousands)	Amount		Amortization		Impairment		Amount
Customer lists	$	32,772	$	(22,726)	$	—	$	10,046
Trade name		255		(151)		—		104
Patents and other intangibles		9,188		(5,503)		—		3,685
Definite-lived intangible assets		42,215		(28,380)		—		13,835
Indefinite-lived trade name		9,070		—		(4,953)		4,117
Total other intangible assets	$	51,285	$	(28,380)	$	(4,953)	$	17,952

Schedule of estimated aggregate amortization expense for definite-lived intangible assets

(in thousands)
2021	$	3,895
2022		3,827
2023		3,584
2024		2,094
2025		906
Thereafter		8
Total	$	14,314