ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

12 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Loss

A roll-forward of the Company's accumulated other comprehensive loss as of December 31, 2021 is as follows:

	Foreign Currency Translation		Actuarial (Loss) Gain on Post-retirement Benefits		Other		Accumulated Other Comprehensive Loss
Balance at January 1, 2020	$	(27.3)	$	(219.8)	$	(0.3)	$	(247.4)
Foreign currency translation adjustment, net of tax (b)	10.2		—		—		10.2
Amortization of pension related costs, net of tax (a) (b)	—		11.4		—		11.4
Pension re-measurement, net of tax of $1.9 million	—		(52.1)		—		(52.1)
Other comprehensive (loss) income	$	10.2	$	(40.7)	$	—	$	(30.5)
Balance at January 1, 2021	$	(17.1)	$	(260.5)	$	(0.3)	$	(277.9)
Foreign currency translation adjustment, net of tax (b)	(8.7)		—		—		(8.7)
Amortization of pension related costs, net of tax (a) (b)	—		13.8		—		13.8
Pension re-measurement, net of tax of $0.3 million	—		38.1		—		38.1
Other comprehensive (loss) income	$	(8.7)	$	51.9	$	—	$	43.2
Balance at December 31, 2021	$	(25.8)	$	(208.6)	$	(0.3)	$	(234.7)

(a) Amounts represent the change in accumulated other comprehensive loss as a result of the amortization of actuarial losses (gains) arising during each year related to the Company’s pension and other post-retirement plans. See Note 11, "Pension and Post-retirement Benefits," for further information on the Company’s pension and other post-retirement plans.

(b) Amounts presented are net of tax expense of nil for each of the years ended December 31, 2021 and 2020.