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Deferred Contract Costs (Tables)
3 Months Ended
Mar. 31, 2020
Revenue from Contract with Customer [Abstract]  
Summary of Deferred Contract Costs The following table summarizes the breakout of deferred contract costs (in millions):
March 31, 2020December 31, 2019
Prepaid expenses and other current assets$4.2  $4.0  
Other assets21.1  20.8  
Total deferred contract costs$25.3  $24.8