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Other Long-Term Liabilities
 12 Months Ended
Dec. 31, 2021
Other Liabilities Disclosure [Abstract]  
Other Long-Term Liabilities OTHER LONG-TERM LIABILITIES
December 31,
(in millions)20212020
Contingent consideration$5.4 $7.4 
Other0.2 7.3 
Total other long-term liabilities$5.6 $14.7 
The Company’s balance of other long-term liabilities as of December 31, 2021 consists primarily of the long-term portion of contingent consideration related to the Sividon acquisition. During the prior periods the Company's portion of social security taxes that had been deferred under the Coronavirus Aid, Relief and Economic Security Act ("CARES Act") that do not have to be deposited until December 2022 were also recorded as other long-term liabilities. As of December 31, 2021 that balance has been reclassified to a current liability as it will be deposited within the next year.