Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 29, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income (loss) including noncontrolling interests	$ 85,946	$ (26,847)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation and amortization	42,147	47,148
Loss on settlement of foreign currency forward contract		270
Equity in earnings of unconsolidated joint ventures	(1,929)	(2,495)
Distributions of earnings from unconsolidated joint ventures	2,145	2,868
Stock-based compensation	8,329	7,628
Excess tax benefits from stock-based compensation	(692)	(875)
Deferred income taxes	2,040	(27,005)
Provision for doubtful accounts	384	12,125
Fair value adjustments to contingent consideration	(34,878)	(8,662)
Loss (gain) on disposal of property and equipment	66	(142)
Lease termination costs and related asset impairment		6,463
Impairment of goodwill		56,600
Changes in operating assets and liabilities, net of effects of business acquisitions:
Accounts receivable	(9,166)	117,687
Prepaid expenses and other assets	(3,738)	7,435
Accounts payable	28,944	(43,911)
Accrued compensation	817	(12,458)
Billings in excess of costs on uncompleted contracts	(351)	(10,986)
Other liabilities	(16,437)	5,569
Income taxes receivable/payable	10,670	(15,144)
Net cash provided by operating activities	114,297	115,268
Cash flows from investing activities:
Capital expenditures	(14,879)	(20,533)
Payments for business acquisitions, net of cash acquired	(10,695)	(168,660)
Payment in settlement of foreign currency forward contract		(4,177)
Receipt in settlement of foreign currency forward contract		3,907
Changes in restricted cash		470
Payment received on note for sale of operation	3,900
Proceeds from sale of property and equipment	3,740	1,763
Net cash used in investing activities	(17,934)	(187,230)
Cash flows from financing activities:
Payments on long-term debt	(3,641)	(167,185)
Proceeds from borrowings		296,098
Payments of earn-out liabilities	(18,662)	(24,015)
Payment of debt issuance cost		(1,938)
Net change in overdrafts	(915)	291
Excess tax benefits from stock-based compensation	692	875
Repurchases of common stock	(26,088)	(4,147)
Dividends paid	(4,506)
Net proceeds from exercise of stock options	18,310	15,697
Net cash (used in) provided by financing activities	(34,810)	115,676
Effect of foreign exchange rate changes on cash	(1,986)	(2,227)
Net increase in cash and cash equivalents	59,567	41,487
Cash and cash equivalents at beginning of period	129,305	104,848
Cash and cash equivalents at end of period	188,872	146,335
Cash paid during the period for:
Interest	6,181	3,801
Income taxes, net of refunds of $12,122 and $4,646	$ 22,109	$ 34,913