Commitments and Contingencies - Additional Information (Details)						3 Months Ended		12 Months Ended
	Mar. 13, 2019 USD ($)	Apr. 02, 2018 USD ($)	Mar. 28, 2018 USD ($)	Mar. 12, 2018 USD ($) Case	Oct. 27, 2016 USD ($)	Dec. 31, 2018 USD ($) Action Case	Jun. 30, 2018 USD ($) Action	Dec. 31, 2018 USD ($) Case	Dec. 31, 2017 USD ($)	Apr. 21, 2017 USD ($)	Jul. 17, 2015 USD ($)
Loss Contingencies [Line Items]
Litigation settlement amount				$ 5,200,000
Self-insured reserve						$ 1,435,000		$ 1,435,000	$ 5,077,000
Provision for doubtful accounts								4,132,000	886,000
Internal Revenue Service
Loss Contingencies [Line Items]
Employer shared responsibility payment liability		$ 2,900,000
HAH Note Paid Prior to Bankruptcy
Loss Contingencies [Line Items]
Secured debt						1,000,000		1,000,000
HAH Note Paid Prior to Bankruptcy | Subsequent Event
Loss Contingencies [Line Items]
Litigation settlement amount	$ 100,000
Variable Interest Entity, Not Primary Beneficiary | HAH Note Paid Prior to Bankruptcy
Loss Contingencies [Line Items]
Offer to settle claims			$ 4,700,000
Provision for doubtful accounts								300,000	600,000
Variable Interest Entity, Not Primary Beneficiary | Notes Receivable | Aria Health Consulting LLC
Loss Contingencies [Line Items]
Accounts and notes receivable											$ 1,000,000
Other Liabilities
Loss Contingencies [Line Items]
Self-insured reserve									200,000
Accounts Payable
Loss Contingencies [Line Items]
Self-insured reserve						$ 600,000		600,000	$ 500,000
Arkansas
Loss Contingencies [Line Items]
Original number of professional and general liability cases | Case				25
Litigation settlement amount								$ 2,400,000
Pending Litigation
Loss Contingencies [Line Items]
Pending litigation | Case						13		13
Pending Litigation | Arkansas
Loss Contingencies [Line Items]
Loss contingency claims after the company transitioned operations | Case								5
Pending Litigation | Ohio Attorney General Action | Ohio
Loss Contingencies [Line Items]
Offer to settle claims					$ 1,000,000
Pending Litigation | Ohio Attorney General Action | Ohio | Minimum
Loss Contingencies [Line Items]
Damages sought per claim or falsification					5,000
Pending Litigation | Ohio Attorney General Action | Ohio | Maximum
Loss Contingencies [Line Items]
Damages sought per claim or falsification					$ 10,000
Pending Litigation | Pending Actions Covered by Insurance | Arkansas
Loss Contingencies [Line Items]
Pending litigation | Case						2		2
Pending Litigation | Aria Bankruptcy Proceeding | Notes Receivable
Loss Contingencies [Line Items]
Amount moved for relief from automatic stay										$ 800,000
Cases Dismissed | Insurance Settlement
Loss Contingencies [Line Items]
Litigation settlement amount				$ 2,800,000
Other Settlements
Loss Contingencies [Line Items]
Litigation settlement amount								$ 52,500
Litigation settlement amount						$ 95,000	$ 50,000
Number of professional and general liability cases settled | Action						2	1
Debt instrument, frequency of periodic payment						3 monthly installments	10 monthly installments	6 monthly installments
Settled Litigation | Professional and General Liability Cases Dismissed without Prejudice | Arkansas
Loss Contingencies [Line Items]
Litigation settlement amount								$ 800,000