Business Segments and Geographic Information - Additional Information (Detail) |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Mar. 31, 2018
USD ($)
Customer
|
Apr. 01, 2017
USD ($)
|
Mar. 31, 2018
USD ($)
Segment
Customer
|
Apr. 01, 2017
USD ($)
|
|
Segment Reporting Disclosure [Line Items] | ||||
Number of operating segments | Segment | 5 | |||
Number of reportable segments | Segment | 5 | |||
Revenues | $ | $ 789,300,000 | $ 715,400,000 | $ 1,580,400,000 | $ 1,449,800,000 |
Customer represented greater than 10% of consolidated revenues | 0 | 0 | 0 | |
Countries with greater than 10% of consolidated revenue | Customer | 0 | 0 | ||
Intersegment | ||||
Segment Reporting Disclosure [Line Items] | ||||
Revenues | $ | $ 0 | $ 0 |