CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 27, 2021	Mar. 28, 2020
Cash flows from operating activities:
Net income	$ 165,193	$ 117,524
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	55,363	58,562
Pension settlement charge	570	0
Loss on debt extinguishment	0	109
Compensation costs recognized under Restricted Unit Plans	4,953	4,822
Other, net	1,825	681
Changes in assets and liabilities:
Accounts receivable	(89,984)	(53,708)
Inventories	(10,015)	2,405
Other current and noncurrent assets	(12,800)	(20,802)
Accounts payable	30,929	16,675
Accrued employment and benefit costs	(2,382)	(7,934)
Customer deposits and advances	(49,934)	(40,298)
Contributions to defined benefit pension plan	(3,690)	(2,030)
Other current and noncurrent liabilities	11,801	15,313
Net cash provided by operating activities	101,829	91,319
Cash flows from investing activities:
Capital expenditures	(14,271)	(20,484)
Investment in and acquisition of businesses	(6,441)	(21,471)
Proceeds from sale of property, plant and equipment	1,407	1,849
Net cash (used in) investing activities	(19,305)	(40,106)
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facility	172,400	405,700
Repayments of borrowings under revolving credit facility	(210,800)	(374,100)
Issuance costs associated with long-term borrowings	0	(2,665)
Partnership distributions	(37,401)	(74,283)
Other, net	(3,134)	(3,111)
Net cash (used in) financing activities	(78,935)	(48,459)
Net increase in cash and cash equivalents	3,589	2,754
Cash and cash equivalents at beginning of period	3,140	2,441
Cash and cash equivalents at end of period	$ 6,729	$ 5,195