Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill allocated to the Company's reportable segments

The changes in the carrying value of goodwill of the Patient Care operating segment for the years ended December 31, 2021 and 2020 are as follows:

(in thousands)	Goodwill, Gross		Accumulated Impairment		Goodwill, Net
Balance at December 31, 2019	$	660,912	$	(428,668)	$	232,244
Additions from acquisitions	45,144		—		45,144
Measurement period adjustments (1)	(165)		—		(165)
Balance at December 31, 2020	705,891		(428,668)		277,223
Additions from acquisitions	86,124		—		86,124
Measurement period adjustments (2)	207		—		207
Balance at December 31, 2021	$	792,222	$	(428,668)	$	363,554

(1) 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.

(2) Measurement period adjustments relate to 2021 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

The balances related to other intangible assets as of December 31, 2021 and 2020 are as follows:

	As of December 31, 2021
(in thousands)	Gross Carrying Amount		Accumulated Amortization		Accumulated Impairment		Net Carrying Amount
Customer lists	$	28,624	$	(9,973)	$	—	$	18,651
Trade name	255		(202)		—		53
Patents and other intangibles	9,572		(6,501)		—		3,071
Definite-lived intangible assets	38,451		(16,676)		—		21,775
Indefinite-lived trade name	9,070		—		(4,953)		4,117
Total other intangible assets	$	47,521	$	(16,676)	$	(4,953)	$	25,892

	As of December 31, 2020
(in thousands)	Gross Carrying Amount		Accumulated Amortization		Accumulated Impairment		Net Carrying 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

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

Estimated aggregate amortization expense for definite-lived intangible assets for each of the next five years ended December 31, and thereafter is as follows:

(in thousands)
2022	$	6,307
2023	6,045
2024	4,554
2025	3,366
2026	1,500
Thereafter	3
Total	$	21,775