Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Jan. 01, 2017
Cash flows from operating activities:
Net income	$ 46,052	$ 26,589
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	9,983	11,191
Equity in income of unconsolidated joint ventures	(839)	(1,030)
Distributions of earnings from unconsolidated joint ventures	1,121	1,114
Non-cash stock compensation	3,970	3,217
Deferred income taxes	(10,100)	2,195
Provision for doubtful accounts	2,524	(1,128)
Gain on disposal of property and equipment	(411)	(118)
Changes in operating assets and liabilities, net of effects of business acquisitions:
Accounts receivable	(36,011)	(41,962)
Prepaid expenses and other assets	(16,321)	(7,392)
Accounts payable	(35,169)	(22,609)
Accrued compensation	(42,575)	(36,884)
Billings in excess of costs on uncompleted contracts	12,330	24,472
Other liabilities	(8,974)	(9,642)
Income taxes receivable/payable	7,926	(6,760)
Net cash used in operating activities	(66,494)	(58,747)
Cash flows from investing activities:
Payments for business acquisitions, net of cash acquired	(18,294)	0
Capital expenditures	(2,143)	(2,031)
Proceeds from sale of property and equipment	710	223
Net cash used in investing activities	(19,727)	(1,808)
Cash flows from financing activities:
Proceeds from borrowings	120,026	88,950
Payments on long-term debt	(25,026)	(47,265)
Repurchases of common stock	(25,000)	(10,000)
Dividends paid	(5,589)	(5,144)
Net proceeds from issuance of common stock	5,584	2,403
Net cash provided by financing activities	69,995	28,944
Effect of exchange rate changes on cash	(724)	(1,867)
Net decrease in cash and cash equivalents	(16,950)	(33,478)
Cash and cash equivalents at beginning of period	189,975	160,459
Cash and cash equivalents at end of period	173,025	126,981
Cash paid during the period for:
Interest	2,913	2,931
Income taxes	$ 1,794	$ 14,831