SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)						3 Months Ended		6 Months Ended		24 Months Ended		40 Months Ended
	Apr. 30, 2023 shares	Nov. 01, 2022 USD ($)	Jan. 20, 2022 USD ($) loan shares	Nov. 05, 2019 USD ($)	Feb. 01, 2018 USD ($) shares	Jun. 30, 2023 USD ($) jointVenture incentivePlan security $ / shares	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) jointVenture incentivePlan security $ / shares	Jun. 30, 2022 USD ($)	Oct. 31, 2025 USD ($)	Mar. 31, 2022 USD ($)	Oct. 31, 2023 USD ($)	Jul. 07, 2023 USD ($) shares	Jun. 07, 2023 shares	Apr. 27, 2023 shares	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 01, 2022 USD ($)	Jul. 01, 2020 USD ($)	Dec. 21, 2019 shares	Jun. 30, 2019 USD ($) agreement	Jan. 01, 2019 USD ($)
Property, Plant and Equipment [Line Items]
Contracts receivable, factoring receivable						$ 15,000,000		$ 15,000,000									$ 15,400,000
Deferred financing costs, net of accumulated amortization						2,000,000		2,000,000									2,300,000
Goodwill						687,879,000		687,879,000									677,665,000
Intangible asset amortization expense								6,000,000	$ 4,800,000
Income tax expense (benefit)						$ 614,000	$ (3,403,000)	$ (521,000)	$ (4,900,000)
Effective tax rate						(4.40%)	19.70%	65.50%	18.10%
Number of plans | incentivePlan						1		1
Number of shares authorized (in shares) | shares														20,100,000
Amount of loss recognized in income on derivative (current period ineffective portion)						$ 593,159,000		$ 593,159,000									332,995,000
Share price (in dollars per share) | $ / shares						$ 32.62		$ 32.62
Credit facilities outstanding						$ 0		$ 0									0
Number of securities without readily determinable fair value | security						3		3
Number of unconsolidated joint ventures | jointVenture						13		13
Management service fees						$ 4,000,000	$ 5,600,000	$ 8,200,000	$ 11,100,000
Medic Vision
Property, Plant and Equipment [Line Items]
Total net assets						$ 1,200,000		$ 1,200,000
Ownership percentage						14.21%		14.21%
Turner Imaging Systems
Property, Plant and Equipment [Line Items]
Number of shares purchased (in shares) | shares					2,100,000
Payments to acquire equity method investments					$ 2,000,000
Preferred stock issued upon conversion (in shares) | shares																				80,000
Turner Imaging Systems | Promissory Note
Property, Plant and Equipment [Line Items]
Short-term debt																						$ 100,000
WhiteRabbit.ai Inc.
Property, Plant and Equipment [Line Items]
Payments to acquire equity method investments				$ 1,000,000
Payments to fund loan to related parties				$ 2,500,000
Revolving Credit Facility | Barclays
Property, Plant and Equipment [Line Items]
Deferred financing costs, net of accumulated amortization						$ 2,000,000		$ 2,000,000
Revolving Credit Facility | First Lien Credit Agreement | Barclays | Line of Credit
Property, Plant and Equipment [Line Items]
Credit facilities outstanding						0		0									0
Aidence
Property, Plant and Equipment [Line Items]
Range of outcomes (upto)			$ 10,000,000
Number of identified milestones | loan			2,000
Milestone contingent consideration						7,191,000		7,191,000								$ 11,316,000	11,158,000
Percent of FDA approval and payout, milestone one			80.00%
Percent of FDA approval and payout, milestone two			70.00%
Aidence | Contingent Milestone Consideration
Property, Plant and Equipment [Line Items]
Milestone contingent consideration						7,200,000		7,200,000
Aidence | General Holdback
Property, Plant and Equipment [Line Items]
Milestone contingent consideration						4,000,000		4,000,000
Quantib
Property, Plant and Equipment [Line Items]
Milestone contingent consideration						5,271,000		5,271,000								4,411,000	3,709,000
Shares issued (in shares) | shares			965,058
Contingent consideration, liability, period			18 months
Additional number of shares issued (in shares) | shares			113,303
Fair value of additional shares issued after execution			$ 3,000,000
Quantib | Contingent Milestone Consideration
Property, Plant and Equipment [Line Items]
Milestone contingent consideration						3,700,000		3,700,000
Quantib | General Holdback
Property, Plant and Equipment [Line Items]
Milestone contingent consideration						1,600,000		1,600,000
Quantib | Stock Holdback | Subsequent Event
Property, Plant and Equipment [Line Items]
Milestone contingent consideration													$ 3,200,000
Additional number of shares issued (in shares) | shares													113,303
Montclair
Property, Plant and Equipment [Line Items]
Milestone contingent consideration						0		0								1,200,000	1,200,000	$ 1,200,000
Contingent consideration settlement						1,200,000		1,200,000
Heart and Lung Limited
Property, Plant and Equipment [Line Items]
Milestone contingent consideration						14,358,000		14,358,000								$ 13,130,000	$ 11,656,000
Contingent consideration, liability, period		24 months
Business acquisition, percentage of voting interests acquired		75.00%
Heart and Lung Limited | Contingent Milestone Consideration
Property, Plant and Equipment [Line Items]
Milestone contingent consideration		$ 10,200,000				$ 14,400,000		$ 14,400,000
Heart and Lung Limited | Cash Holdback
Property, Plant and Equipment [Line Items]
Milestone contingent consideration		$ 600,000
Aidence
Property, Plant and Equipment [Line Items]
Shares issued (in shares) | shares			1,141,234
Aidence | General Holdback
Property, Plant and Equipment [Line Items]
Shares issued (in shares) | shares	144,227
Forecast
Property, Plant and Equipment [Line Items]
Monthly amortization of deferred hedge gains										$ 300,000		$ 400,000
Accumulated Other Comprehensive Loss, net of taxes
Property, Plant and Equipment [Line Items]
Amount of loss recognized in income on derivative (current period ineffective portion)																			$ 24,400,000
2019 SWAPS
Property, Plant and Equipment [Line Items]
Number of forward interest rate cap agreements | agreement																					4
Notional amounts																					$ 500,000,000
2019 SWAPS | 2019 Swaps - Interest Rate Contracts
Property, Plant and Equipment [Line Items]
Notional amounts																					$ 100,000,000
2019 SWAPS | 2019 Swaps - Interest Rate Contracts | Term SOFR Loans
Property, Plant and Equipment [Line Items]
Basis spread on variable rate																					1.89%
2019 SWAPS | October 2023
Property, Plant and Equipment [Line Items]
Number of forward interest rate cap agreements | agreement																					2
Notional amounts																					$ 50,000,000
2019 SWAPS | October 2025
Property, Plant and Equipment [Line Items]
Number of forward interest rate cap agreements | agreement																					2
Notional amounts																					$ 200,000,000
2019 SWAPS-1 | 2019 Swaps - Interest Rate Contracts
Property, Plant and Equipment [Line Items]
Notional amounts																					$ 400,000,000
2019 SWAPS-1 | 2019 Swaps - Interest Rate Contracts | Term SOFR Loans
Property, Plant and Equipment [Line Items]
Basis spread on variable rate																					1.98%
Restated Plan
Property, Plant and Equipment [Line Items]
Number of shares authorized (in shares) | shares															20,100,000
Management Service Contracts
Property, Plant and Equipment [Line Items]
Useful life						25 years		25 years
Minimum
Property, Plant and Equipment [Line Items]
Share-based payment award, award vesting period								3 years
Share-based payment award, expiration period								5 years
Minimum | Dignity Health | Joint Venture | Glendale Advanced Imaging
Property, Plant and Equipment [Line Items]
Variable interest entity, ownership percentage								35.00%
Minimum | Amounts Returned to Property and Equipment
Property, Plant and Equipment [Line Items]
PPE estimated useful lives						3 years		3 years
Minimum | Leasehold Improvements
Property, Plant and Equipment [Line Items]
PPE estimated useful lives						3 years		3 years
Maximum
Property, Plant and Equipment [Line Items]
Share-based payment award, award vesting period								5 years
Share-based payment award, expiration period								10 years
Maximum | Dignity Health | Joint Venture | Glendale Advanced Imaging
Property, Plant and Equipment [Line Items]
Variable interest entity, ownership percentage								55.00%
Maximum | Amounts Returned to Property and Equipment
Property, Plant and Equipment [Line Items]
PPE estimated useful lives						15 years		15 years
Maximum | Leasehold Improvements
Property, Plant and Equipment [Line Items]
PPE estimated useful lives						15 years		15 years
COVID-19 Pandemic
Property, Plant and Equipment [Line Items]
Advance medicare payments											$ 39,600,000
Repayment of advance medicare payments								$ 38,600,000