Summary of Net Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2015
Finite Lived Intangible Assets [Line Items]
Net Intangible Assets	$ 83,657	$ 172,962
Tradename
Finite Lived Intangible Assets [Line Items]
Net Intangible Assets		74,903	$ 124,000
Medicare Licenses
Finite Lived Intangible Assets [Line Items]
Net Intangible Assets	57,226	57,226
Certificates of Need
Finite Lived Intangible Assets [Line Items]
Net Intangible Assets	8,267	21,101
Contract Relationships and Other
Finite Lived Intangible Assets [Line Items]
Net Intangible Assets	$ 18,164	$ 19,732