Supplemental Disclosures

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Disclosures

Supplemental Disclosures

Analysis of Allowances for Doubtful Accounts:

($ in millions)

	For the Years Ended December 31,
	2019			2018			2017
Allowance for Doubtful Accounts
Beginning balance	$	1.7		$	1.0		$	0.8
Bad debt expense	0.4			1.2			0.8
Recoveries	(0.3		)	(0.2		)	—
Write-offs and discounts	(0.3		)	(0.3		)	(0.6		)
Ending balance	$	1.5		$	1.7		$	1.0

Supplemental Cash Flow Information

($ in millions)

	For the Years Ended December 31,
	2019		2018		2017
Interest paid	$	29.1	$	24.0	$	22.7
Income taxes paid	20.8		23.2		38.1
Capital spending in accounts payable and accrued liabilities	5.9		5.0		7.7
Deferred contingent business acquisition consideration	—		—		8.6