Acquisitions (Schedule of Fair Values of Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jul. 01, 2020	Dec. 31, 2019	Oct. 01, 2019	Aug. 01, 2019	Jun. 01, 2019
Business Acquisition [Line Items]
Goodwill	$ 286,552		$ 275,368
A Plus Health Care, Inc [Member]
Business Acquisition [Line Items]
Goodwill		$ 11,252
Identifiable intangible assets		1,523
Cash		2,819
Accounts receivable		1,075
Operating lease assets, net		180
Other assets		23
Accounts payable		(18)
Accrued expenses		(202)
Accrued payroll		(303)
Current portion of long-term debt		(577)
Long-term debt		(1,145)
Long-term operating lease liabilities		(100)
Total purchase price		$ 14,527
Hospice Partners [Member]
Business Acquisition [Line Items]
Goodwill				$ 111,674
Identifiable intangible assets				18,090
Cash				5,489
Property and equipment				164
Accounts receivable				6,411
Operating lease assets, net				2,425
Other assets				702
Accounts payable				(1,737)
Accrued expenses				(3,503)
Accrued payroll				(1,110)
Deferred tax liability				(1,422)
Long-term operating lease liabilities				(1,615)
Total purchase price				$ 135,568
Alliance Home Health Care [Member]
Business Acquisition [Line Items]
Goodwill					$ 17,062
Identifiable intangible assets					5,422
Cash					177
Accounts receivable					1,754
Accounts payable					(316)
Other liabilities					(641)
Total purchase price					$ 23,458
VIP Health Care Services [Member]
Business Acquisition [Line Items]
Goodwill						$ 11,936
Identifiable intangible assets						15,370
Cash						130
Property and equipment						27
Accounts receivable						4,730
Operating lease assets, net						2,278
Other assets						30
Accounts payable						(540)
Accrued expenses						(770)
Accrued payroll						(1,742)
Long-term operating lease liabilities						(1,531)
Total purchase price						$ 29,918