Goodwill and Intangible Assets (Details) (USD $)	3 Months Ended
	Dec. 28, 2014	Sep. 28, 2014
Goodwill information
Number Of Renamed Reportable Segments	2
Goodwill	$ 698,833,000
Goodwill
Balance at beginning of the period	714,190,000
Foreign exchange impact	(15,357,000)
Balance at end of the period	698,833,000
Impairment of goodwill	0
GMP
Goodwill information
Goodwill	65,600,000
Goodwill
Balance at end of the period	65,600,000
WEI
Goodwill information
Goodwill	232,634,000
Goodwill
Balance at beginning of the period	238,086,000
Foreign exchange impact	(5,452,000)
Balance at end of the period	232,634,000
Gross amounts of goodwill	263,700,000	269,200,000
Accumulated impairment	31,100,000	31,100,000
RME
Goodwill information
Goodwill	466,199,000
Goodwill
Balance at beginning of the period	476,104,000
Foreign exchange impact	(9,905,000)
Balance at end of the period	466,199,000
Gross amounts of goodwill	492,600,000	502,500,000
Accumulated impairment	$ 26,400,000	$ 26,400,000