Goodwill and Intangibles - Summary of Changes in Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets:	$ 298,690	$ 293,188
Gross carrying amount, definite-lived intangible assets	28,928	28,799
Accumulated amortization	(17,070)	(16,431)
Net total	11,858	12,368
Gross carrying amount, intangible assets	327,618	321,987
Net total	310,548	305,556
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	10,209	10,182
Accumulated amortization	(9,378)	(9,229)
Net total	831	953
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	6,897	6,795
Accumulated amortization	(6,191)	(5,991)
Net total	706	804
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	11,822	11,822
Accumulated amortization	(1,501)	(1,211)
Net total	10,321	10,611
Trade Names
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets:	165,417	163,499
Certificates of Need/Licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets:	$ 133,273	$ 129,689