CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Cash flows from operating activities:
Net income	$ 37,977	$ 40,163
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	28,017	29,274
Compensation costs recognized under Restricted Unit Plans	2,358	2,562
Other, net	724	(261)
Changes in assets and liabilities:
Accounts receivable	(51,472)	(63,999)
Inventories	(9,514)	(7,355)
Other current and noncurrent assets	(14,889)	(4,094)
Accounts payable	23,831	41,585
Accrued employment and benefit costs	(12,261)	(10,713)
Customer deposits and advances	(11,005)	(13,801)
Contributions to defined benefit pension plan	0	(1,015)
Other current and noncurrent liabilities	10,468	3,266
Net cash provided by operating activities	4,234	15,612
Cash flows from investing activities:
Capital expenditures	(5,812)	(13,039)
Investment in and acquisition of businesses	(6,078)	(21,049)
Proceeds from sale of property, plant and equipment	676	862
Net cash (used in) investing activities	(11,214)	(33,226)
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facility	93,900	129,700
Repayments of borrowings under revolving credit facility	(63,700)	(68,700)
Partnership distributions	(18,644)	(37,041)
Other, net	(2,403)	(2,869)
Net cash provided by financing activities	9,153	21,090
Net increase in cash and cash equivalents	2,173	3,476
Cash and cash equivalents at beginning of period	3,140	2,441
Cash and cash equivalents at end of period	$ 5,313	$ 5,917