Business Acquisitions (Narrative) (Details) - Business Acquisition, Acquiree - Duarte Business [Member] - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Dec. 28, 2012
Purchase agreement contract price		$ 200,000
Cash paid at closing		$ 198,900
Retrospective adjustments primarily related to long-term performance obligations and other accrued liabilities	$ 12,800
Current portion of contractual commitment acquired that is expected to result in future losses						$ 4,758
Long-term portion of contractual commitment acquired that is expected to result in future losses						17,939
Long-term portion of performance obligation acquired						23,215
Current portion of performance obligation acquired						12,985
Long-term receivable from Seller for services to be provided to the Seller						18,097
Current receivable from Seller for services to be provided to the Seller						$ 8,103
Transaction costs			$ 0	$ 0	$ 1,944
Net Sales				$ 145,998	$ 111,261