Consolidated Statements of Cash Flows (USD $) In Thousands	12 Months Ended
	Oct. 02, 2011	Oct. 03, 2010	Sep. 27, 2009
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income including noncontrolling interests	$ 92,982	$ 76,819	$ 87,028
Adjustments to reconcile net income including noncontrolling interests to net cash from operating activities:
Depreciation and amortization	55,684	33,491	27,256
Loss on settlement of foreign currency forward contract	293	28
Equity in earnings of unconsolidated joint ventures	(4,877)	(1,184)	(1,613)
Distributions of earnings from unconsolidated joint ventures	4,802	1,689	1,136
Stock-based compensation	10,582	10,178	9,392
Excess tax benefits from stock-based compensation	(104)	(754)	(2,025)
Deferred income taxes	1,720	11,641	(3,772)
Provision for doubtful accounts	3,733	7,179	24,207
Exchange (gain) and loss	1,288	(205)	(20)
Lease contract termination costs	1,281
Gain on disposal of property and equipment	(231)	(1,480)	(296)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	2,046	(23,161)	156,174
Prepaid expenses and other assets	(28,324)	5,770	(10,292)
Accounts payable	(34,013)	(10,002)	(104,268)
Accrued compensation	11,157	4,582	(12,935)
Billings in excess of costs on uncompleted contracts	(1,669)	(19,957)	(5,102)
Other liabilities	4,720	9,590	(3,180)
Income taxes receivable/payable	10,553	2,618	36,558
Net cash provided by operating activities	131,623	106,842	198,248
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(18,901)	(21,584)	(19,803)
Payments for business acquisitions, net of cash acquired	(269,996)	(78,905)	(114,743)
Payment in settlement of foreign currency forward contract	(4,216)	(3,960)
Receipt in settlement of foreign currency forward contract	3,923	3,932
Restricted cash	(5,000)
Investments in unconsolidated joint ventures	(530)
Proceeds from sale of discontinued operation			192
Proceeds from sale of property and equipment	879	3,128	1,055
Net cash used in investing activities	(293,841)	(97,389)	(133,299)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on long-term debt	(43,047)	(2,673)	(168,711)
Proceeds from borrowings	66,892	120,000	118,290
Net change overdrafts	726
Distributions paid to noncontrolling interests	(1,702)
Excess tax benefits from stock-based compensation	104	754	2,025
Net proceeds from issuance of common stock	8,378	3,353	20,336
Net cash provided by (used in) financing activities	31,351	121,434	(28,060)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	428	861	1,394
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(130,439)	131,748	38,283
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	220,933	89,185	50,902
CASH AND CASH EQUIVALENTS AT END OF PERIOD	90,494	220,933	89,185
Cash paid (received) during the year for:
Interest	4,226	1,287	2,475
Income taxes, net of refunds received	$ 33,715	$ 32,407	$ (152)