FACILITY ACQUISITIONS AND ASSETS HELD FOR SALE (Details Narrative) - USD ($) $ in Thousands	Apr. 01, 2019	Mar. 01, 2019	Feb. 02, 2019	Feb. 01, 2019	Jun. 30, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill acquired					$ 437,940	$ 418,093
Kern Radiology Imaging Systems, Inc.
Business Acquisition [Line Items]
Purchase consideration	$ 19,300
Fixed assets acquired	7,600
Right-of-use asset required	14,500
Other assets acquired	36
Intangible assets acquired	500
Operating lease liabilities acquired	14,500
Goodwill acquired	11,200
Zilkha Radiology
Business Acquisition [Line Items]
Purchase consideration	4,500
Fixed assets acquired	2,200
Right-of-use asset required	5,100
Intangible assets acquired	100
Operating lease liabilities acquired	5,100
Goodwill acquired	$ 2,200
West Valley Imaging Group, LLC
Business Acquisition [Line Items]
Purchase consideration				$ 3,000
Fixed assets acquired				300
Other assets acquired				7
Intangible assets acquired				200
Goodwill acquired				$ 2,500
Payments to acquire equity method investments			$ 750
Noncontrolling interest, ownership percentage				25.00%
Ventura County Imaging Group, LLC
Business Acquisition [Line Items]
Payments to acquire equity method investments		$ 10,400
Ownership percentage		60.00%
Dignity Health | Partnership | Ventura County Imaging Group, LLC
Business Acquisition [Line Items]
Payments to acquire equity method investments		$ 6,100
Ownership percentage		40.00%
Payments to acquire equity method investments, Assets		$ 800
Ownership percentage in exchange for assets		5.00%
Payments to acquire equity method investments, Cash		$ 5,300
Ownership percentage in exchange for cash		35.00%