CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 32,711	$ 43,143	$ 42,014
Other comprehensive (loss) income:
Net unrealized gain on restricted investments, net of tax	28	5	67
Change in funded status of pension plans, net of tax	(475)	385	1,155
Foreign currency translation adjustment	(1,541)	743	788
Total other comprehensive (loss) income	(1,988)	1,133	2,010
Comprehensive income	$ 30,723	$ 44,276	$ 44,024