GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2011	Apr. 30, 2011	Jul. 31, 2011
Goodwill and Other Intangible Assets [Line Items]
Balances as of October 31, 2010			$ 385,016,000
Goodwill acquired			3,898,000
Adjustments to Goodwill	1,300,000	4,100,000	1,278,000
Accrued additional purchase consideration from a prior acquisition	1,200,000		1,198,000
Foreign currency translation adjustments			1,049,000
Balances as of July 31, 2011	392,439,000		392,439,000
Flight Support Group [Member]
Goodwill and Other Intangible Assets [Line Items]
Balances as of October 31, 2010			188,459,000
Goodwill acquired			3,898,000
Adjustments to Goodwill			0
Accrued additional purchase consideration from a prior acquisition			0
Foreign currency translation adjustments			0
Balances as of July 31, 2011	192,357,000		192,357,000
Electronic Technologies Group [Member]
Goodwill and Other Intangible Assets [Line Items]
Balances as of October 31, 2010			196,557,000
Goodwill acquired			0
Adjustments to Goodwill			1,278,000
Accrued additional purchase consideration from a prior acquisition			1,198,000
Foreign currency translation adjustments			1,049,000
Balances as of July 31, 2011	$ 200,082,000		$ 200,082,000