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Contract assets and deferred revenue (Tables)
12 Months Ended
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]  
Schedule of Net Contract Assets (Liabilities)
Net contract assets (liabilities) are as follows:
As of December 31,20212020
Contract assets - current$42.0 $44.3 
Contract assets - long-term(i)
17.4 20.7 
Deferred revenue - current(253.2)(257.1)
Deferred revenue - long-term(150.7)(137.9)
(i)Reported in other long-term assets on the company’s consolidated balance sheets