GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill consist of the following activity for the years ended December 31, 2022, 2021 and 2020 (in thousands):

Balance at December 31, 2019	$	1,425,542
Purchase accounting adjustments	3,068
Balance at December 31, 2020	$	1,428,610
Acquisitions	48,954
Balance at December 31, 2021	$	1,477,564
Acquisitions	54,543
Purchase accounting adjustments	1,317
Balance at December 31, 2022	$	1,533,424

Schedule of Carrying Amount and Accumulated Amortization of Intangible Assets

The carrying amount and accumulated amortization of intangible assets consists of the following as of December 31, 2022 and 2021 (in thousands):

	December 31, 2022		December 31, 2021
Gross intangible assets:
Referral sources	$	509,646	$	482,200
Trademarks/names	38,508		47,718
Other amortizable intangible assets	912		1,037
Total gross intangible assets	549,066		530,955
Accumulated amortization:
Referral sources	(167,902)		(137,613)
Trademarks/names	(16,901)		(26,936)
Other amortizable intangible assets	(148)		(386)
Total accumulated amortization	(184,951)		(164,935)
Total intangible assets, net	$	364,115	$	366,020

Schedule of Future Amortization Expense for Intangible Assets

Expected future amortization expense for intangible assets recorded at December 31, 2022, is as follows (in thousands):

	Amount
2023	$	33,747
2024	33,738
2025	33,737
2026	33,737
2027	33,597
2028 and beyond	195,559
Total	$	364,115