Almost Family Merger - Preliminary Valuation Analysis of Identifiable Assets and Liabilities Assumed for the Merger (Details) - USD ($) $ in Thousands	Apr. 01, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Recognized amounts of identifiable assets acquired and liabilities assumed:
Preliminary goodwill		$ 1,161,717	$ 392,601	$ 307,317
Almost Family
Business Acquisition [Line Items]
Stock	$ 795,412
Recognized amounts of identifiable assets acquired and liabilities assumed:
Cash and cash equivalents	16,547
Patient account receivable	91,095
Prepaid income taxes	2,262
Prepaid expenses and other current assets	11,490
Property and equipment	11,144
Customer relationships	13,970
Assets held for sale	2,850
Deferred income taxes	3,613
Accounts payable	(43,731)
Accrued other liabilities	(56,100)
Seller notes payable	(13,555)
NCI - Redeemable	(8,034)
Long term income taxes payable	(3,786)
Line of credit	(106,800)
NCI - Nonredeemable	(36,609)
Other assets and (liabilities), net	(2)
Total identifiable assets and liabilities	36,949
Preliminary goodwill	758,463
Trade name | Almost Family
Recognized amounts of identifiable assets acquired and liabilities assumed:
Indefinite-lived intangible assets	76,090
Certificates of need/licenses | Almost Family
Recognized amounts of identifiable assets acquired and liabilities assumed:
Indefinite-lived intangible assets	$ 76,505