Acquisitions (Schedule of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Aug. 01, 2019	Jun. 01, 2019	Dec. 31, 2018	May 01, 2018	Apr. 01, 2018	Jan. 01, 2018
Business Acquisition [Line Items]
Goodwill	$ 162,016			$ 135,442
Alliance Home Health Care [Member]
Business Acquisition [Line Items]
Goodwill		$ 15,973
Identifiable intangible assets		5,422
Cash		1,172
Accounts receivable		1,936
Other assets		95
Accounts payable		(296)
Other liabilities		(844)
Total purchase price allocation		$ 23,458
VIP Health Care Services [Member]
Business Acquisition [Line Items]
Goodwill			$ 10,374
Identifiable intangible assets			15,370
Cash			110
Accounts receivable			5,986
Other assets			2,308
Property and equipment			27
Accounts payable			(385)
Accrued expenses			(747)
Accrued payroll			(1,571)
Other liabilities			(1,554)
Total purchase price allocation			$ 29,918
Ambercare Corporation [Member]
Business Acquisition [Line Items]
Goodwill					$ 28,831
Identifiable intangible assets					9,944
Cash					12,028
Accounts receivable					6,512
Other assets					442
Property and equipment					154
Accounts payable					(3)
Accrued expenses					(4,073)
Deferred tax liability					(2,138)
Financing lease					(75)
Total purchase price allocation					$ 51,622
Arcadia Home Care And Staffing [Member]
Business Acquisition [Line Items]
Goodwill						$ 13,072
Identifiable intangible assets						2,264
Accounts receivable						5,317
Other assets						92
Property and equipment						155
Accounts payable						(508)
Accrued expenses						(1,540)
Total purchase price allocation						$ 18,852
Lifestyle Options, Inc. [Member]
Business Acquisition [Line Items]
Goodwill							$ 2,751
Identifiable intangible assets							1,152
Accounts receivable							573
Other assets							32
Property and equipment							18
Accounts payable							(105)
Accrued expenses							(291)
Total purchase price allocation							$ 4,130