Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jan. 01, 2017	Dec. 27, 2015
Cash flows from operating activities:
Net income including noncontrolling interests	$ 26,589	$ 23,240
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	11,191	9,805
Equity in income of unconsolidated joint ventures	(1,030)	(202)
Distributions of earnings from unconsolidated joint ventures	1,114	205
Stock-based compensation	3,217	2,792
Excess tax benefits from stock-based compensation		(118)
Deferred income taxes	2,195	928
Provision for doubtful accounts	(1,128)	7,019
Fair value adjustments to contingent consideration		1,001
Gain on disposal of property and equipment	(118)	(176)
Changes in operating assets and liabilities, net of effects of business acquisitions:
Accounts receivable	(41,962)	30,415
Prepaid expenses and other assets	(7,392)	(8,648)
Accounts payable	(22,609)	(30,361)
Accrued compensation	(36,884)	(12,233)
Billings in excess of costs on uncompleted contracts	24,472	2,199
Other liabilities	(9,642)	(1,309)
Income taxes receivable/payable	(6,760)	(942)
Net cash (used in) provided by operating activities	(58,747)	23,615
Cash flows from investing activities:
Capital expenditures	(2,031)	(3,250)
Proceeds from sale of property and equipment	223	704
Net cash used in investing activities	(1,808)	(2,546)
Cash flows from financing activities:
Payments on long-term debt	(47,265)	(2,802)
Proceeds from borrowings	88,950
Payments of earn-out liabilities		(1,001)
Excess tax benefits from stock-based compensation		118
Repurchases of common stock	(10,000)	(25,000)
Dividends paid	(5,144)	(4,713)
Net proceeds from issuance of common stock	2,403	4,085
Net cash provided by (used in) financing activities	28,944	(29,313)
Effect of foreign exchange rate changes on cash	(1,867)	(1,994)
Net decrease in cash and cash equivalents	(33,478)	(10,238)
Cash and cash equivalents at beginning of period	160,459	135,326
Cash and cash equivalents at end of period	126,981	125,088
Cash paid during the period for:
Interest	2,931	1,743
Income taxes, net of refunds received of $0.0 million and $0.4 million	$ 14,831	$ 8,793