OPERATING SEGMENTS (Details 1) - USD ($) $ in Thousands	Apr. 30, 2018	Oct. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 2,627,881	$ 2,512,431
Other Primarily Corporate and Intersegment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	174,669	130,143
Flight Support Group [Member] | Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,061,310	1,042,925
Electronic Technologies Group [Member] | Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,391,902	$ 1,339,363