DISCONTINUED OPERATIONS - Narrative (Detail) $ in Thousands, £ in Millions	1 Months Ended					3 Months Ended	12 Months Ended
	Oct. 31, 2015 USD ($)	Jul. 31, 2015 USD ($)	May 31, 2015 USD ($)	Jan. 31, 2015 USD ($)	Jan. 31, 2015 GBP (£)	Dec. 31, 2015 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture							$ 6,973	$ 1,027	$ 31,344
Gain (loss) on divestiture							$ 875	845	(16,991)
Impairment of assets									40,813
Income tax benefit / (expense)								$ 2,053	$ (7,926)
Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Operating Segments | facility									5
Surface Technologies [Member] | Commercial/Industrial
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Facilities Sold | facility									2
Assets and liabilities sold (less than)	$ 1,000
Disposal Date	Oct. 31, 2015	Jul. 31, 2015
Engineered Packaging [Member] | Defense
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture		$ 14,000
Gain (loss) on divestiture		$ 2,300
Disposal Date		Jul. 31, 2015
Downstream [Member] | Previously reported within Energy segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture			$ 19,000
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, before Income Tax						$ 4,800
Gain (loss) on divestiture									$ (59,500)
Disposal Date			May 31, 2015
Aviation Ground Support [Member] | Defense
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture				$ 4,000	£ 3
Disposal Date				Jan. 31, 2015	Jan. 31, 2015