CONDENSED CONSOLIDATED STATEMENT OF PARTNERS' CAPITAL (unaudited) - 6 months ended Mar. 25, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Unitholders [Member]	Accumulated Other Comprehensive (Loss) [Member]
Balance (in units) at Sep. 24, 2016		60,789
Balance at Sep. 24, 2016	$ 708,231	$ 754,063	$ (45,832)
Net income	118,301	118,301
Other comprehensive income	2,611		2,611
Partnership distributions	(108,140)	$ (108,140)
Common Units issued under Restricted Unit Plans (in units)		269
Compensation cost recognized under Restricted Unit Plans, net of forfeitures	4,101	$ 4,101
Balance (in units) at Mar. 25, 2017		61,058
Balance at Mar. 25, 2017	$ 725,104	$ 768,325	$ (43,221)