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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands		3 Months Ended
	Mar. 27, 2024	Mar. 31, 2024	Mar. 31, 2023
Equipment acquired and leasehold improvements		$ 44,100	$ 40,800
Accounts payable, accrued expenses and other		324,578
Property and equipment, net		618,926
Goodwill		$ 694,292
Ventura County Imaging Group, LLC
Additional noncontrolling interest issued in joint venture		12.50%
Accounts payable, accrued expenses and other		$ 5,100
Grossman Imaging Center of CMH, LLC* | Plan
Total consideration		$ 10,500
Heart & Lung Imaging Limited | Stock Holdback
Shares issued (in shares)	95,019
Equity interest issued, value assigned	$ 4,600

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