Selected Balance Sheet Information - Property Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 24, 2022	Sep. 25, 2021
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 1,438,521	$ 1,406,915
Less: accumulated depreciation	(874,737)	(837,785)
Property, plant and equipment, net	563,784	569,130
Land and improvements [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	189,882	187,106
Buildings and improvements [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	116,870	114,309
Transportation equipment [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	23,521	27,848
Storage facilities [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	115,149	114,328
Equipment, primarily tanks and cylinders [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	928,802	901,945
Computer software [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	52,958	52,752
Construction in progress [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 11,339	$ 8,627