Schedule II - Valuation and Qualifying Accounts and Reserves

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts and Reserves

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

FOR YEARS ENDED DECEMBER 31, 2021, 2020, and 2019

			Provision/ (Benefit)
In millions	Balance, Beginning of Year		Charged to Costs and Expenses	Charged to Other Comprehensive Income	Charged to Retained Earnings	Write-offs (1)	Balance, End of Year
December 31, 2021
Accounts receivable credit loss allowance (2)	$	1.9	0.1	—	—	—	$	2.0
Held-to-maturity debt securities credit loss allowance (3)	$	0.9	(0.4)	—	—	—	$	0.5
Deferred tax valuation allowance	$	8.4	0.8	(0.4)	—	—	$	8.8
December 31, 2020
Accounts receivable credit loss allowance (2)	$	0.5	1.4	—	—	—	$	1.9
Held-to-maturity debt securities credit loss allowance (3)	$	—	0.3	—	0.6	—	$	0.9
Deferred tax valuation allowance	$	13.0	(1.9)	(2.7)	—	—	$	8.4
December 31, 2019
Accounts receivable credit loss allowance (2)	$	0.4	0.1	—	—	—	$	0.5
Deferred tax valuation allowance	$	15.5	(1.9)	(0.6)	—	—	$	13.0

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(1) Write-offs are net of recoveries.

(2) Allowance for credit losses on accounts receivable is included within Accounts receivable, net on the consolidated balance sheet.

(3) Allowance for credit losses on held-to-maturity debt securities is included within Restricted investment on the consolidated balance sheet.