Capital Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jul. 01, 2017	Oct. 01, 2016
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	$ 295,486	$ 293,615
Accumulated Amortization	(37,692)	(26,826)
Intangible assets, net	$ 257,794	$ 266,789
Weighted Average Useful Life (in Years)	15 years	15 years 1 month 6 days
Software development costs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 25,348	$ 23,184
Accumulated Amortization	(15,607)	(14,938)
Net Carrying Value	$ 9,741	$ 8,246
Weighted Average Useful Life (in Years)	6 years	6 years
Technology and patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 46,500	$ 46,672
Accumulated Amortization	(8,508)	(6,360)
Net Carrying Value	$ 37,992	$ 40,312
Weighted Average Useful Life (in Years)	14 years 10 months 24 days	14 years 10 months 24 days
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6,807	$ 6,903
Accumulated Amortization	(2,305)	(1,911)
Net Carrying Value	$ 4,502	$ 4,992
Weighted Average Useful Life (in Years)	25 years 5 months 20 days	25 years 6 months
Customer lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 156,993	$ 156,987
Accumulated Amortization	(10,856)	(3,372)
Net Carrying Value	$ 146,137	$ 153,615
Weighted Average Useful Life (in Years)	15 years 9 months 18 days	15 years 9 months 18 days
Land-use rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,338	$ 2,369
Accumulated Amortization	(416)	(245)
Net Carrying Value	$ 1,922	$ 2,124
Weighted Average Useful Life (in Years)	26 years 2 months	26 years 3 months 18 days
Trade names
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 57,500	$ 57,500