Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of carrying amount of goodwill

The following table shows changes in the carrying amounts of goodwill by reporting unit for the nine months ended September 30, 2021:

	Critical Illness Recovery Hospital		Rehabilitation Hospital		Outpatient Rehabilitation		Concentra		Total
	(in thousands)
Balance as of December 31, 2020	$	1,084,761	$	432,753	$	646,433	$	1,215,067	$	3,379,014
Acquisition of businesses	—		9,402		3,621		7,757		20,780
Balance as of September 30, 2021	$	1,084,761	$	442,155	$	650,054	$	1,222,824	$	3,399,794

Schedule of carrying value and amortization of identifiable intangible assets

The following table provides the gross carrying amounts, accumulated amortization, and net carrying amounts for the Company’s identifiable intangible assets:

	December 31, 2020						September 30, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(in thousands)
Indefinite-lived intangible assets:
Trademarks	$	166,698	$	—	$	166,698	$	166,698	$	—	$	166,698
Certificates of need	18,392		—		18,392		18,544		—		18,544
Accreditations	1,874		—		1,874		1,874		—		1,874
Finite-lived intangible assets:
Trademarks	5,000		(5,000)		—		5,000		(5,000)		—
Customer relationships	291,923		(113,346)		178,577		303,424		(133,859)		169,565
Non-compete agreements	33,771		(11,771)		22,000		35,959		(14,207)		21,752
Total identifiable intangible assets	$	517,658	$	(130,117)	$	387,541	$	531,499	$	(153,066)	$	378,433