FACILITY ACQUISITIONS, ASSETS HELD FOR SALE AND DISPOSITIONS (Details - Schedule of Assets and Liabilities Assumed) - USD ($) $ in Thousands	Dec. 31, 2020	Nov. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018
Business Acquisition [Line Items]
Property and Equipment					$ 15,000
Goodwill	$ 472,879		$ 441,973	$ 418,093
ZP Atlantic
Business Acquisition [Line Items]
Property and Equipment		$ 7,931
Right of Use Assets		6,181
Other Assets		62
Intangible Assets		50
Right of Use Liabilities		(6,181)
Goodwill		828
TOTAL		8,871
ZP Elmhurst
Business Acquisition [Line Items]
Property and Equipment		10,681
Right of Use Assets		12,571
Other Assets		75
Intangible Assets		50
Right of Use Liabilities		(12,571)
Goodwill		1,463
TOTAL		$ 12,269