CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Cash flows from (used by) operating activities:
Net earnings	$ 232,889	$ 64,093
Adjustments to reconcile net earnings to cash flows from (used by) operating activities:
Depreciation and amortization	41,226	41,799
Stock-based compensation	9,619	9,062
Deferred income taxes and other long-term taxes	(5,099)	11,720
Other	(583)	(39)
Asset impairments	0	3,594
Amortization of acquired unfavorable contract backlog	0	(1,523)
Changes in operating assets and liabilities	(252,273)	(140,794)
Net cash flows from (used by) operating activities	25,779	(12,088)
Cash flows from (used by) investing activities:
Capital expenditures	(70,150)	(37,201)
Proceeds from the sale of property, plant and equipment and other	1,418	743
Net cash flows used by investing activities	(68,732)	(36,458)
Cash flows from (used by) financing activities:
Proceeds from accounts receivable facilities	150,664	4,487
Repayments under accounts receivable facilities	(144,706)	(4,487)
Dividends	(17,025)	(14,406)
Stock issued under incentive and purchase plans, net of forfeitures	(16,371)	(10,341)
Repayments of long-term debt	(6,556)	(3,823)
Treasury stock acquired	(5,311)	0
Net cash flows used by financing activities	(39,305)	(28,570)
Effect of exchange rate changes on cash	(550)	(365)
Decrease in cash, restricted cash and cash equivalents	(82,808)	(77,481)
Cash, restricted cash and cash equivalents at beginning of period	418,321	467,483
Cash, restricted cash and cash equivalents at end of period	$ 418,321	$ 467,483