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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - Supplemental (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Supplemental cash flow information:
Interest paid	$ 29,071	$ 35,280
Non-cash investing activities:
Capitalized interest	827	306
Five Star
Non-cash investing activities:
Restructuring Transaction additional consideration	0	(75,000)
Five Star
Non-cash investing activities:
Five Star Senior Living Inc. common stock	0	97,896
Non-cash financing activities:
Distribution to common shareholders of the right to receive Five Star Senior Living Inc. common stock	$ 0	$ (59,801)

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