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Other Financial Statement Information - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Other Financial Information [Abstract]          
Contract with customer liability $ 153.9   $ 153.9   $ 130.1
Contract with customer liability revenue recognized $ 77.5 $ 57.7 $ 102.3 $ 83.1