Fair Value Measurements (Details) (USD $)	6 Months Ended
	Mar. 29, 2014	Sep. 28, 2013
Fair Value Measurements
Total fair value of derivatives	$ 19,492,000	$ (11,194,000)
Carrying value of long-term debt	166,900,000	173,200,000
Period of reset of debt variable interest rates	30 days
Long-term investment carried at cost	10,000,000
Recurring basis | Level 2
Fair Value Measurements
Total fair value of derivatives	19,492,000	(11,194,000)
Recurring basis | Level 2 | Interest rate swaps
Fair Value Measurements
Total fair value of derivatives	(4,799,000)	(6,004,000)
Recurring basis | Level 2 | Cross currency swap
Fair Value Measurements
Total fair value of derivatives	5,105,000	(1,253,000)
Recurring basis | Level 2 | Coffee futures
Fair Value Measurements
Total fair value of derivatives	19,186,000	(3,809,000)
Recurring basis | Level 2 | Foreign currency forward contracts
Fair Value Measurements
Total fair value of derivatives		$ (128,000)