Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 28, 2015	Jun. 29, 2014
Cash flows from operating activities:
Net income including noncontrolling interests	$ 70,909	$ 85,946
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	34,300	42,147
Equity in earnings of unconsolidated joint ventures	(3,097)	(1,929)
Distributions of earnings from unconsolidated joint ventures	3,045	2,145
Stock-based compensation	8,093	8,329
Excess tax benefits from stock-based compensation	(170)	(692)
Deferred income taxes	(9,826)	2,040
Provision for doubtful accounts	(1,866)	384
Fair value adjustments to contingent consideration	(3,113)	(34,878)
(Gain) loss on disposal of property and equipment	(5,295)	66
Foreign exchange loss (gain)	244	(184)
Changes in operating assets and liabilities, net of effects of business acquisitions:
Accounts receivable	78,110	(9,166)
Prepaid expenses and other assets	6,023	(3,738)
Accounts payable	(36,733)	28,944
Accrued compensation	1,448	817
Billings in excess of costs on uncompleted contracts	(11,363)	(351)
Other liabilities	(21,741)	(16,437)
Income taxes receivable/payable	25,130	10,854
Net cash provided by operating activities	134,098	114,297
Cash flows from investing activities:
Capital expenditures	(20,262)	(14,879)
Payments for business acquisitions, net of cash acquired	(11,750)	(10,695)
Proceeds from sale of property and equipment	10,039	3,740
Payment received on note for sale of operation		3,900
Net cash used in investing activities	(21,973)	(17,934)
Cash flows from financing activities:
Payments on long-term debt	(32,631)	(3,641)
Proceeds from long-term debt	64,794
Payments of earn-out liabilities	(3,199)	(18,662)
Payment of debt issuance cost	(1,457)
Excess tax benefits from stock-based compensation	170	692
Repurchases of common stock	(75,500)	(26,088)
Net change in overdrafts		(915)
Dividends paid	(13,440)	(4,506)
Net proceeds from issuance of common stock	5,621	18,310
Net cash used in financing activities	(55,642)	(34,810)
Effect of foreign exchange rate changes on cash	(3,679)	(1,986)
Net increase in cash and cash equivalents	52,804	59,567
Cash and cash equivalents at beginning of period	122,379	129,305
Cash and cash equivalents at end of period	175,183	188,872
Cash paid during the year for:
Interest	5,084	6,181
Income taxes, net of refunds received of $4.4 million and $12.1 million	$ 15,679	$ 22,109