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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands			6 Months Ended
	Jan. 20, 2022	Jan. 01, 2021	Jun. 30, 2022	Jun. 30, 2021
Equipment acquired and leasehold improvements			$ 60,800	$ 42,100
Investment in joint ventures			48,936
Contributions		$ 300
Property and equipment, net			$ 514,661
Simi Valley Imaging Group, LLC
Investment in joint ventures		400
Simi Adventist
Investment in joint ventures		$ 100
Aidence B.V
Shares issued (in shares)	1,141,234
Equity interest issued, value assigned	$ 30,600
Quantib B.V
Shares issued (in shares)	965,058
Equity interest issued, value assigned	$ 25,900

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