ACCUMULATED OTHER COMPREHENSIVE LOSS

12 Months Ended

Dec. 31, 2020

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

ACCUMULATED OTHER COMPREHENSIVE LOSS

ACCUMULATED OTHER COMPREHENSIVE LOSS

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

	Foreign Currency Translation		Actuarial (Loss) Gain on Post-retirement Benefits		Other		Accumulated Other Comprehensive Loss
Balance at January 1, 2019	$	(24.4)	$	(209.5)	$	(0.3)	$	(234.2)
Foreign currency translation adjustment, net of tax of $(1.8) million	(2.9)		—		—		(2.9)
Amortization of pension related costs, net of tax of $(1.1) million (a)	—		9.0		—		9.0
Pension re-measurement, net of tax of $5.2 million	—		(19.3)		—		(19.3)
Other comprehensive (loss) income	$	(2.9)	$	(10.3)	$	—	$	(13.2)
Balance at January 1, 2020	$	(27.3)	$	(219.8)	$	(0.3)	$	(247.4)
Foreign currency translation adjustment, net of tax of nil million	10.2		—		—		10.2
Amortization of pension related costs, net of tax of nil million (a)	—		11.4		—		11.4
Pension re-measurement, net of tax of $1.9 million	—		(52.1)		—		(52.1)
Other comprehensive (loss) gain	$	10.2	$	(40.7)	$	—	$	(30.5)
Balance at December 31, 2020	$	(17.1)	$	(260.5)	$	(0.3)	$	(277.9)

(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.

For the year ended December 31, 2020 and 2019, the Company did not have any activity related to derivative instruments.