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FACILITY ACQUISITIONS AND ASSETS HELD FOR SALE (Details Narrative) - USD ($) $ in Thousands |  |  |  |  |  |  |  | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 01, 2019 | Apr. 01, 2019 | Mar. 01, 2019 | Feb. 28, 2019 | Feb. 02, 2019 | Feb. 01, 2019 | Apr. 12, 2018 | Nov. 06, 2014 | Sep. 30, 2019 | Dec. 31, 2018 | Oct. 06, 2014
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity method investment realized gain (loss) |  |  |  |  |  |  |  |  | $ 134 |  |
Goodwill acquired |  |  |  |  |  |  |  |  | $ 439,867 | $ 418,093 |
Kern Radiology Imaging Systems, Inc. |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fixed assets acquired |  | $ 10,100 |  |  |  |  |  |  |  |  |
Operating lease liabilities acquired |  | 14,500 |  |  |  |  |  |  |  |  |
Other assets acquired |  | 36 |  |  |  |  |  |  |  |  |
Right-of-use asset required |  | 9,700 |  |  |  |  |  |  |  |  |
Goodwill acquired |  | 10,500 |  |  |  |  |  |  |  |  |
Intangible assets acquired |  | 3,400 |  |  |  |  |  |  |  |  |
Purchase consideration |  | 19,300 |  |  |  |  |  |  |  |  |
Zilkha Radiology |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fixed assets acquired |  | 2,200 |  |  |  |  |  |  |  |  |
Operating lease liabilities acquired |  | 5,100 |  |  |  |  |  |  |  |  |
Right-of-use asset required |  | 5,100 |  |  |  |  |  |  |  |  |
Goodwill acquired |  | 2,600 |  |  |  |  |  |  |  |  |
Intangible assets acquired |  | 100 |  |  |  |  |  |  |  |  |
Purchase consideration |  | 4,500 |  |  |  |  |  |  |  |  |
Equipment indebtedness retired |  | $ 332 |  |  |  |  |  |  |  |  |
Hudson Valley Radiology Associates |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill acquired |  |  |  | $ 3,100 |  |  |  |  |  |  |
Intangible assets acquired |  |  |  | 340 |  |  |  |  |  |  |
Purchase consideration |  |  |  | 680 |  |  |  |  |  |  |
Equity interest issued, value assigned |  |  |  | 6,000 |  |  |  |  |  |  |
Equipment |  |  |  | 10 |  |  |  |  |  |  |
West Valley Imaging Group, LLC |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fixed assets acquired |  |  |  |  |  | $ 300 |  |  |  |  |
Other assets acquired |  |  |  |  |  | 7 |  |  |  |  |
Goodwill acquired |  |  |  |  |  | 2,500 |  |  |  |  |
Payments to acquire equity method investments |  |  |  |  | $ 750 |  |  |  |  |  |
Intangible assets acquired |  |  |  |  |  | 200 |  |  |  |  |
Purchase consideration |  |  |  |  |  | $ 3,000 |  |  |  |  |
Ventura County Imaging Group, LLC |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  | 60.00% |  |  |  |  |  |  |  |
Payments to acquire equity method investments |  |  | $ 10,400 |  |  |  |  |  |  |  |
Dignity Health | Partnership | Ventura County Imaging Group, LLC |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  | 40.00% |  |  |  |  |  |  |  |
Payments to acquire equity method investments |  |  | $ 6,100 |  |  |  |  |  |  |  |
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% |  |  |  |  |  |  |  |
West Valley Imaging Group, LLC | West Valley Imaging Group, LLC |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage |  |  |  |  |  | 25.00% |  |  |  |  |
Jefferson Health |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  | 51.00%
Garden State Radiology Network, LLC. |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  | 49.00%
Equity method investment realized gain (loss) | $ (114) |  |  |  |  |  |  |  |  |  |
Fixed assets acquired | 599 |  |  |  |  |  |  |  |  |  |
Operating lease liabilities acquired | 426 |  |  |  |  |  |  |  |  |  |
Other assets acquired | 1 |  |  |  |  |  |  |  |  |  |
Right-of-use asset required | 426 |  |  |  |  |  |  |  |  |  |
Goodwill acquired | 888 |  |  |  |  |  |  |  |  |  |
Payments to acquire equity method investments |  |  |  |  |  |  |  | $ 2,200 |  |  |
New Jersey Imaging Networks |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fixed assets acquired | $ 1,900 |  |  |  |  |  |  |  |  |  |
Nulogix, Inc. |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage | 75.00% |  |  |  |  |  | 25.00% |  |  |  |
Equity method investment realized gain (loss) | $ (504) |  |  |  |  |  |  |  |  |  |
Fixed assets acquired | 189 |  |  |  |  |  |  |  |  |  |
Goodwill acquired | 1,400 |  |  |  |  |  |  |  |  |  |
Payments to acquire equity method investments | 1,500 |  |  |  |  |  | $ 2,000 |  |  |  |
Intangible assets acquired | 732 |  |  |  |  |  |  |  |  |  |
Deferred tax liability | $ 278 |  |  |  |  |  |  |  |  |  |
Ventura County Imaging Group, LLC |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fixed assets acquired |  |  | $ 4,300 |  |  |  |  |  |  |  |
Noncompete Agreements | Hudson Valley Radiology Associates |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intangible assets acquired |  |  |  | 50 |  |  |  |  |  |  |
Trade Names | Hudson Valley Radiology Associates |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intangible assets acquired |  |  |  | 380 |  |  |  |  |  |  |
Primedex Health Systems, Inc. and Radiologix | Hudson Valley Radiology Associates |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Unfavorable lease contracts |  |  |  | $ 2,800 |  |  |  |  |  |  |

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