Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Amount of Goodwill

The following table shows changes in the carrying amount of Goodwill (in millions):

	Inpatient Rehabilitation		Home Health and Hospice		Consolidated
Goodwill as of December 31, 2018	$	1,189.2	$	911.6	$	2,100.8
Acquisitions	4.8		174.7		179.5
Consolidation of joint venture formerly accounted for under the equity method of accounting	24.9		—		24.9
Goodwill as of December 31, 2019	1,218.9		1,086.3		2,305.2
Acquisitions	9.2		1.0		10.2
Consolidation of joint venture formerly accounted for under the equity method of accounting	—		3.3		3.3
Goodwill as of December 31, 2020	1,228.1		1,090.6		2,318.7
Acquisitions	8.8		92.4		101.2
Consolidation of joint venture formerly accounted for under the equity method of accounting	—		8.0		8.0
Goodwill as of December 31, 2021	$	1,236.9	$	1,191.0	$	2,427.9

Schedule of Intangible Assets by Major Class

The range of estimated useful lives and the amortization basis for our intangible assets, excluding goodwill, are generally as follows:

	Estimated Useful Life and Amortization Basis
Certificates of need	10 to 30 years using straight-line basis
Licenses	10 to 20 years using straight-line basis
Noncompete agreements	1 to 18 years using straight-line basis
Trade names:
Encompass	indefinite-lived asset
All other	1 to 20 years using straight-line basis
Internal-use software	3 to 7 years using straight-line basis
Market access assets	20 years using accelerated basis

The following table provides information regarding our other intangible assets (in millions):

	Gross Carrying Amount		Accumulated Amortization		Net
Certificates of need:
2021	$	204.5	$	(68.8)	$	135.7
2020	197.3		(54.5)		142.8
Licenses:
2021	$	194.5	$	(121.0)	$	73.5
2020	187.9		(107.4)		80.5
Noncompete agreements:
2021	$	78.5	$	(69.0)	$	9.5
2020	75.2		(65.8)		9.4
Trade name - Encompass:
2021	$	135.2	$	—	$	135.2
2020	135.2		—		135.2
Trade names - all other:
2021	$	45.0	$	(27.0)	$	18.0
2020	44.3		(25.5)		18.8
Internal-use software:
2021	$	209.0	$	(164.9)	$	44.1
2020	184.2		(141.4)		42.8
Market access assets:
2021	$	13.2	$	(11.7)	$	1.5
2020	13.2		(11.4)		1.8
Total intangible assets:
2021	$	879.9	$	(462.4)	$	417.5
2020	837.3		(406.0)		431.3

Schedule of Amortization Expense, Intangible Assets

Amortization expense for other intangible assets is as follows (in millions):

	For the Year Ended December 31,
	2021		2020		2019
Amortization expense	$	56.4	$	59.8	$	58.4

Schedule of Future Estimated Amortization Expense, Intangible Assets

Total estimated amortization expense for our other intangible assets for the next five years is as follows (in millions):

Year Ending December 31,	Estimated Amortization Expense
2022	$	53.7
2023	45.9
2024	37.0
2025	24.9
2026	21.3