Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jul. 01, 2012	Jul. 03, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income including noncontrolling interests	$ 74,192	$ 65,583
Adjustments to reconcile net income including noncontrolling interests to net cash from operating activities:
Depreciation and amortization	42,203	41,562
Loss on settlement of foreign currency forward contract	286	293
Equity in earnings of unconsolidated joint ventures	(2,369)	(3,440)
Distributions of earnings from unconsolidated joint ventures	2,812	3,882
Stock-based compensation	8,193	7,807
Excess tax benefits from stock-based compensation	(283)	(104)
Deferred income taxes	(3,896)	(5,535)
Provision for doubtful accounts	2,115	2,557
Exchange gain	(64)	(425)
Gain on disposal of property and equipment	(157)	(310)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(34,037)	(28,211)
Prepaid expenses and other assets	27,561	(10,521)
Accounts payable	(2,584)	(12,741)
Accrued compensation	9,974	25,615
Billings in excess of costs on uncompleted contracts	6,032	(2,632)
Other liabilities	1,438	6,799
Income taxes receivable/payable	(3,215)	8,220
Net cash provided by operating activities	128,201	98,399
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(14,906)	(13,582)
Payments for business acquisitions, net of cash acquired	(52,226)	(206,066)
Payment in settlement of foreign currency forward contract	(4,192)	(4,216)
Receipt in settlement of foreign currency forward contract	3,906	3,923
Investments in unconsolidated joint ventures	(586)	(530)
Proceeds from sale of property and equipment	701	676
Net cash used in investing activities	(67,303)	(219,795)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on long-term debt	(60,222)	(42,641)
Proceeds from borrowings	52,849	34,063
Payments of earn-out liabilities	(18,055)
Distributions paid to noncontrolling interests		(1,507)
Excess tax benefits from stock-based compensation	283	104
Net proceeds from issuance of common stock	12,885	8,012
Net cash used in financing activities	(12,260)	(1,969)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	1,533	798
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	50,171	(122,567)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	90,494	220,933
CASH AND CASH EQUIVALENTS AT END OF PERIOD	140,665	98,366
Cash paid during the period for:
Interest	4,143	3,047
Income taxes, net of refunds received	$ 45,670	$ 29,158