BUSINESS SEGMENTS (Tables)

6 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Information on Griffon’s business segments is as follows:

	For the Three Months Ended March 31,				For the Six Months Ended March 31,
REVENUE	2014		2013		2014		2013
Home & Building Products:
Ames	$	160,705	$	136,237	$	257,313	$	213,546
CBP		90,838		89,499		212,680		202,366
Home & Building Products		251,543		225,736		469,993		415,912
Telephonics		104,185		121,631		200,210		217,681
Plastics		151,959		141,376		290,942		278,899
Total consolidated net sales	$	507,687	$	488,743	$	961,145	$	912,492

	For the Three Months Ended March 31,						For the Six Months Ended March 31,
LOSS BEFORE TAXES	2014			2013			2014			2013
Segment operating profit:
Home & Building Products	$	8,818		$	3,835		$	18,211		$	11,106
Telephonics		10,677			13,753			21,329			28,398
Plastics		9,352			916			15,177			3,558
Total segment operating profit		28,847			18,504			54,717			43,062
Net interest expense		(12,361	)		(12,909	)		(25,462	)		(25,988	)
Unallocated amounts		(8,391	)		(7,980	)		(16,374	)		(15,567	)
Loss from debt extinguishment, net		(38,890	)		—			(38,890	)		—
Loss on pension settlement		—			—			—			(2,142	)
Loss before taxes	$	(30,795	)	$	(2,385	)	$	(26,009	)	$	(635	)

	For the Three Months Ended March 31,						For the Six Months Ended March 31,
	2014			2013			2014			2013
Segment adjusted EBITDA:
Home & Building Products	$	17,124		$	17,555		$	36,191		$	34,794
Telephonics		12,535			15,505			24,931			31,869
Plastics		16,216			12,352			28,959			21,671
Total Segment adjusted EBITDA		45,875			45,412			90,081			88,334
Net interest expense		(12,361	)		(12,909	)		(25,462	)		(25,988	)
Segment depreciation and amortization		(16,336	)		(17,572	)		(33,032	)		(34,828	)
Unallocated amounts		(8,391	)		(7,980	)		(16,374	)		(15,567	)
Loss from debt extinguishment, net		(38,890	)		—			(38,890	)		—
Restructuring charges		(692	)		(9,336	)		(1,534	)		(10,444	)
Acquisition costs		—			—			(798	)		—
Loss on pension settlement		—			—			—			(2,142	)
Loss before taxes	$	(30,795	)	$	(2,385	)	$	(26,009	)	$	(635	)

	For the Three Months Ended March 31,				For the Six Months Ended March 31,
DEPRECIATION and AMORTIZATION	2014		2013		2014		2013
Segment:
Home & Building Products	$	7,614	$	9,157	$	15,648	$	18,017
Telephonics		1,858		1,752		3,602		3,471
Plastics		6,864		6,663		13,782		13,340
Total segment depreciation and amortization		16,336		17,572		33,032		34,828
Corporate		103		109		200		210
Total consolidated depreciation and amortization	$	16,439	$	17,681	$	33,232	$	35,038
CAPITAL EXPENDITURES
Segment:
Home & Building Products	$	6,722	$	6,711	$	15,190	$	15,804
Telephonics		5,520		2,630		8,887		3,452
Plastics		4,390		4,333		10,150		11,701
Total segment		16,632		13,674		34,227		30,957
Corporate		297		33		618		38
Total consolidated capital expenditures	$	16,929	$	13,707	$	34,845	$	30,995

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

ASSETS	At March 31, 2014		At September 30, 2013
Segment assets:
Home & Building Products	$	995,765	$	908,386
Telephonics		299,820		296,919
Plastics		426,563		422,730
Total segment assets		1,722,148		1,628,035
Corporate		55,728		156,455
Total continuing assets		1,777,876		1,784,490
Assets of discontinued operations		4,324		4,289
Consolidated total	$	1,782,200	$	1,788,779