DISCONTINUED OPERATIONS (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain on divestiture									$ 0	$ 18,512	$ 0
Earnings from discontinued operations	0	0	0	0	324	(144)	(95)	21,470	0	21,555	7,769
Heat Treating [Member] | Surface Technologies [Member]
Income Statement Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net sales									0	10,785	36,510
Earnings from discontinued operations before income taxes									0	4,929	12,521
Provision for income taxes									0	(1,886)	(4,752)
Gain on divestiture									0	18,512	0
Earnings from discontinued operations									0	21,555	7,769
Year to date taxes										$ 11,400