Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 29, 2013
Net earnings	$ 108,812	$ 88,950	$ 51,152
Cash flow hedges, Net change in fair value of derivatives	(26,596)	(1,890)	(110)
Net change in fair value of derivatives	2,011	1,291	1,353
Cash flow hedges, Net change in fair value of derivatives	(24,585)	(599)	1,243
Tax effect	9,517	229	(476)
Cash flow hedges	(15,068)	(370)	767
Actuarial (losses) gains arising during the period	54,407	49,173	(98,764)
Actuarial losses and prior service cost reclassified to earnings	9,863	5,245	18,895
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	(44,544)	(43,928)	117,659
Tax effect	17,243	16,821	(45,079)
Unrecognized periodic benefit costs	(27,301)	(27,107)	72,580
Foreign currency translation adjustments	(45)	10	8
Tax effect	16	(3)	(4)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	(29)	7	4
Other comprehensive (loss) income, net of tax	(42,398)	(27,470)	73,351
Comprehensive income	$ 66,414	$ 61,480	$ 124,503