Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands			9 Months Ended
	Sep. 29, 2014	Jun. 30, 2014	Jun. 28, 2015	Jun. 28, 2015	Sep. 28, 2014
Goodwill information
Goodwill	$ 714,190		$ 714,190	$ 684,909	$ 714,190
Goodwill
Balance at beginning of the period	714,190		714,190
Goodwill additions			6,272
Foreign exchange translation			(35,553)
Balance at end of the period			684,909
Impairment of goodwill	$ 0	$ 0
GMP | Maximum
Goodwill
Percentage of excess of fair value over carrying value	20.00%
WEI
Goodwill information
Goodwill	$ 238,086		238,086	225,323	238,086
Goodwill
Balance at beginning of the period	238,086		238,086
Foreign exchange translation			(12,763)
Balance at end of the period			225,323
Gross amounts of goodwill				256,400	269,200
Accumulated impairment				31,100	31,100
RME
Goodwill information
Goodwill	476,104		476,104	459,586	476,104
Goodwill
Balance at beginning of the period	$ 476,104		476,104
Goodwill additions			6,272
Foreign exchange translation			(22,790)
Balance at end of the period			$ 459,586
Gross amounts of goodwill				486,000	502,500
Accumulated impairment				$ 26,400	$ 26,400