Goodwill and Intangible Assets - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | |||
---|---|---|---|---|---|
Jun. 28, 2014
|
Mar. 29, 2014
|
Jun. 29, 2013
|
Jun. 28, 2014
|
Jun. 29, 2013
|
|
Finite-Lived Intangible Assets [Line Items] | |||||
Impairment charges | $ 27.1 | ||||
Impairment of intangible assets | 0 | 1.7 | 26.6 | 1.7 | |
Developed Technology [Member]
|
|||||
Finite-Lived Intangible Assets [Line Items] | |||||
Impairment charges | 26.6 | ||||
Impairment of intangible assets | 1.7 | ||||
Trade Names [Member]
|
|||||
Finite-Lived Intangible Assets [Line Items] | |||||
Impairment charges | $ 0.5 |