CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net (loss) income	$ (49.5)	$ 10.5	$ (38.2)	$ (3.6)
Other comprehensive income (loss):
Currency translation adjustments	6.1	(46.0)	14.0	(54.9)
Cumulative currency translation (gain) loss realized	69.6		69.6
Total other comprehensive income (loss)	75.7	(46.0)	83.6	(54.9)
Comprehensive income (loss)	26.2	(35.5)	45.4	(58.5)
Less: comprehensive (loss) attributable to noncontrolling interests	0.0	(0.1)	(2.2)	(0.3)
Comprehensive income (loss) attributable to Stericycle, Inc. common shareholders	26.2	(35.4)	47.6	(58.2)
Republic of Korea Operations
Other comprehensive income (loss):
Cumulative currency translation (gain) loss realized	(2.7)	0.0	(2.7)	0.0
Australia and Singapore Operations
Other comprehensive income (loss):
Cumulative currency translation (gain) loss realized	2.2	0.0	2.2	0.0
Brazil Operations
Other comprehensive income (loss):
Cumulative currency translation (gain) loss realized	$ 70.1	$ 0.0	$ 70.1	$ 0.0