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Customer Contracts (Tables)
 12 Months Ended
Dec. 31, 2022
Revenue from Contract with Customer [Abstract]  
Schedule of Balances Related to Customer Contracts
The following table presents the balances related to customer contracts:
(In millions)Consolidated Balance Sheets AccountDecember 31, 2020December 31, 2021December 31, 2022
Accounts receivable, net
Accounts receivable, net (1)
$483.0 $554.3 $622.2 
Current portion of contract assetsOther current assets$12.2 $15.2 $16.0 
Non-current portion of contract assetsOther non-current assets$13.9 $13.1 $10.4 
Current portion of deferred revenueDeferred revenue$76.7 $98.6 $80.9 
Non-current portion of deferred revenueOther non-current liabilities$14.2 $13.6 $8.6 
(1)    Allowance for credit losses and accrued customer credits was $28.3 million, $18.4 million and $24.6 million as of December 31, 2020, 2021 and 2022, respectively.
Schedule of Changes in Allowance for Doubtful Accounts
The following table sets forth the changes in the allowance for credit losses during the years ended December 31, 2020, 2021 and 2022:
(In millions)Beginning Balance
Additions (1)
Write-offs of Accounts Receivables, Net of RecoveriesEnding Balance
For the years ending December 31,
2020$9.5 $20.1 $(13.4)$16.2 
2021$16.2 $5.4 $(7.9)$13.7 
2022$13.7 $11.0 $(6.3)$18.4 
(1)    Additions to the allowance for credit losses are charged to bad debt within "Selling, general and administrative expenses."
Schedule of Capitalized Contract Cost
Amortization of capitalized sales commissions and implementation costs was as follows:
Year Ended December 31,
(In millions)202020212022
Amortization of capitalized sales commissions$44.2 $43.7 $43.7 
Amortization of capitalized implementation costs$17.4 $18.1 $16.4