Revenue Recognition Disaggregation of Revenue (Details) $ in Thousands	3 Months Ended
	Nov. 30, 2018 USD ($)
Disaggregation of Revenue [Line Items]
Revenues	$ 292,531
Industrial Tools & Services [Member] [Domain]
Disaggregation of Revenue [Line Items]
Revenues	148,655
Products [Member]
Disaggregation of Revenue [Line Items]
Revenues	102,768
Service & Rental [Member]
Disaggregation of Revenue [Line Items]
Revenues	45,887
Engineered Components & Systems [Member] [Domain]
Disaggregation of Revenue [Line Items]
Revenues	143,876
On-Highway [Member]
Disaggregation of Revenue [Line Items]
Revenues	60,591
Agriculture, Off-Highway and Other
Disaggregation of Revenue [Line Items]
Revenues	53,884
Rope & Cable Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	16,166
Concrete Tensioning [Member]
Disaggregation of Revenue [Line Items]
Revenues	13,235
Revenue Recognized at a Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	240,622
Revenue Recognized Over Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 51,909