Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 136,599	$ 120,654	$ 267,502	$ 240,084
Revenue Recognized at a Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	104,919	90,726	205,092	177,506
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 31,680	$ 29,928	$ 62,410	$ 62,578