CONDENSED CONSOLIDATED STATEMENT OF PARTNERS' CAPITAL (Unaudited) (USD $) In Thousands, unless otherwise specified	Common Unitholders [Member]	Accumulated Other Comprehensive (Loss) [Member]	Total	Comprehensive Income [Member]
Balance at Sep. 24, 2011	$ 418,134	$ (59,916)	$ 358,218
Balance (in units) at Sep. 24, 2011	35,429
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	23,232		23,232	23,232
Other comprehensive income:
Unrealized gains on cash flow hedges		317	317	317
Reclassification of realized losses on cash flow hedges into earnings		695	695	695
Amortization of net actuarial losses and prior service credits into earnings		1,196	1,196	1,196
Comprehensive income				25,440
Partnership distributions	(30,226)		(30,226)
Common Units issued under Restricted Unit Plans (in units)	68
Compensation cost recognized under Restricted Unit Plans, net of forfeitures	1,203		1,203
Balance at Dec. 24, 2011	$ 412,343	$ (57,708)	$ 354,635
Balance (in units) at Dec. 24, 2011	35,497