Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jul. 02, 2017	Jun. 26, 2016
Cash flows from operating activities:
Net income including noncontrolling interests	$ 83,431	$ 52,669
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	34,377	33,835
Equity in income of unconsolidated joint ventures	(3,504)	(1,557)
Distributions of earnings from unconsolidated joint ventures	2,747	2,305
Stock-based compensation	10,037	9,299
Excess tax benefits from stock-based compensation		(576)
Deferred income taxes	27,886	7,313
Provision for doubtful accounts	(1,891)	9,488
Fair value adjustments to contingent consideration	(7,149)	2,823
Gain on disposal of property and equipment	(369)	(777)
Lease termination costs and related asset impairment		2,946
Changes in operating assets and liabilities, net of effects of business acquisitions:
Accounts receivable	(9,485)	19,107
Prepaid expenses and other assets	(14,806)	(4,791)
Accounts payable	(2,484)	(2,566)
Accrued compensation	(13,390)	(2,035)
Billings in excess of costs on uncompleted contracts	36,401	(8,370)
Other liabilities	(5,523)	(14,976)
Income taxes receivable/payable	(64,705)	(14,335)
Net cash provided by operating activities	71,573	89,802
Cash flows from investing activities:
Capital expenditures	(7,018)	(10,107)
Payments for business acquisitions, net of cash acquired	(8,039)	(81,256)
Changes in restricted cash		(3,384)
Proceeds from sale of property and equipment	507	3,291
Investments in unconsolidated joint ventures		(768)
Net cash used in investing activities	(14,550)	(92,224)
Cash flows from financing activities:
Payments on long-term debt	(220,845)	(102,213)
Proceeds from borrowings	199,574	200,000
Payments of earn-out liabilities		(1,001)
Debt pre-payment costs		(1,935)
Excess tax benefits from stock-based compensation		576
Repurchases of common stock	(60,000)	(75,000)
Dividends paid	(16,039)	(14,578)
Net proceeds from issuance of common stock	17,992	12,679
Net cash (used in) provided by financing activities	(79,318)	18,528
Effect of foreign exchange rate changes on cash	608	2,486
Net (decrease) increase in cash and cash equivalents	(21,687)	18,592
Cash and cash equivalents at beginning of period	160,459	135,326
Cash and cash equivalents at end of period	138,772	153,918
Cash paid during the period for:
Interest	8,770	9,089
Income taxes, net of refunds received of $1.6 million and $3.0 million	$ 70,146	$ 29,405