Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Remaining Performance Obligations

The Company expects to recognize the remaining performance obligations as revenue in future periods as follows:

	Remaining Performance
(millions)	Obligations
2022	$	66.9
2023		46.8
2024		29.8
2025		12.2
2026		5.8
2027 and thereafter		5.2
Total	$	166.7

Schedule of Contract with Customer, Asset and Liabilities

The following table provides information about accounts receivable, contract assets and contract liabilities with customers and clients as of December 31, 2021 and 2020:

(millions)	2021			2020
Accounts receivable	$	137.3		$	102.7
Contract asset		2.3			8.6
Contract liability		(15.7	)		(12.5	)

The following table provides information about changes to contract asset balances during the years ended December 31, 2021 and 2020:

(millions)	2021			2020
Balance, beginning of year	$	8.6		$	11.0
Additional contract assets		2.3			8.6
Reclassification to accounts receivable		(8.6	)		(11.0	)
Balance, end of year	$	2.3		$	8.6

The following table provides information about changes to contract liabilities during the years ended December 31, 2021 and 2020:

(millions)	2021			2020
Balance, beginning of year	$	(12.5	)	$	(19.4	)
Additional contract liabilities		(15.7	)		(12.5	)
Recognition of revenue from contract liabilities		12.5			19.4
Balance, end of year	$	(15.7	)	$	(12.5	)