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Financial Statement Details - Accrued Warranty (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Movement in Standard Product Warranty Accrual [Roll Forward]        
Beginning balance $ 5.7 $ 1.1 $ 3.3 $ 1.3
Charges to costs and expenses 7.3 1.8 13.5 3.0
Costs incurred (5.1) (1.7) (8.9) (3.1)
Ending balance $ 7.9 $ 1.2 $ 7.9 $ 1.2