Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 143,149	$ 101,879	$ 383,233	$ 381,939
Revenue Recognized at a Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	107,316	73,412	284,823	275,413
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 35,833	$ 28,467	$ 98,410	$ 106,526