CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Net earnings (loss)	$ 279,503	$ 198,093	$ 138,506
Foreign currency translation adjustment:
Foreign currency translation adjustment	33,559	(29,718)	(13,938)
Reclassification for translation loss realized upon liquidation of investment in foreign entity	6	857	2,079
Foreign currency translation adjustment	33,565	(28,861)	(11,859)
Net unrealized gain (loss) on derivatives:
Unrealized holding gain (loss)	(12,136)	(6)	48
Reclassification for gain included in net earnings	(304)	(244)	(279)
Net unrealized loss on derivatives	(12,440)	(250)	(231)
Defined benefit obligation:
Net loss	(796)	(2,629)	(138)
Amortization of net loss	86	0	126
Amortization of prior services	(53)	(25)	(62)
Reclassification for settlement losses	0	1,316	0
Defined benefit obligation	(763)	(1,338)	(74)
Other comprehensive income (loss)	20,362	(30,449)	(12,164)
Comprehensive income	$ 299,865	$ 167,644	$ 126,342