Significant Customers (Details) - Customers - customer	3 Months Ended		12 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Jun. 30, 2015
Significant customers
Number of significant customers	5	3
Sales
Significant customers
Concentration percentage, disclosure threshold	5.00%
Concentration percentage	39.40%	25.30%
Sales | Customer 1
Significant customers
Concentration percentage	9.60%	8.90%
Sales | Customer 2
Significant customers
Concentration percentage	9.10%	8.80%
Sales | Customer 3
Significant customers
Concentration percentage	8.00%	7.60%
Sales | Customer 4
Significant customers
Concentration percentage	7.40%
Sales | Customer 5
Significant customers
Concentration percentage	5.30%
Receivables
Significant customers
Concentration percentage, disclosure threshold	5.00%
Concentration percentage	28.80%	23.20%
Receivables | Customer 1
Significant customers
Concentration percentage			7.00%
Receivables | Customer 2
Significant customers
Concentration percentage	9.50%		9.00%
Receivables | Customer 3
Significant customers
Concentration percentage	8.10%
Receivables | Customer 4
Significant customers
Concentration percentage	5.70%		6.20%
Receivables | Customer 5
Significant customers
Concentration percentage	5.50%