REPORTABLE SEGMENTS (Tables)

12 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

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

Information on Griffon’s reportable segments is as follows:

	For the Years Ended September 30,
REVENUE	2013		2012		2011
Home & Building Products:
ATT	$	419,549	$	433,866	$	434,789
CBP		435,416		422,674		404,947
Home & Building Products		854,965		856,540		839,736
Telephonics		453,351		441,503		455,353
Plastics		563,011		563,102		535,713
Total consolidated net sales	$	1,871,327	$	1,861,145	$	1,830,802

	For the Years Ended September 30,
INCOME (LOSS) BEFORE TAXES	2013			2012			2011
Segment operating profit:
Home & Building Products	$	26,130		$	37,082		$	28,228
Telephonics		55,076			49,232			40,595
Plastics		16,589			13,688			13,308
Total segment operating profit		97,795			100,002			82,131
Net interest expense		(52,167	)		(51,715	)		(47,448	)
Unallocated amounts		(29,153	)		(26,346	)		(22,868	)
Loss from debt extinguishment, net		—			—			(26,164	)
Loss on pension settlement		(2,142	)		—			—
Income (loss) before taxes from continuing operations	$	14,333		$	21,941		$	(14,349	)

	For the Years Ended September 30,
	2013			2012			2011
Segment adjusted EBITDA:
Home & Building Products	$	70,064		$	70,467		$	77,119
Telephonics		63,199			60,565			50,875
Plastics		48,100			40,000			37,639
Total Segment adjusted EBITDA		181,363			171,032			165,633
Net interest expense		(52,167	)		(51,715	)		(47,448	)
Segment depreciation and amortization		(70,306	)		(65,864	)		(60,361	)
Unallocated amounts		(29,153	)		(26,346	)		(22,868	)
Loss from debt extinguishment, net		—			—			(26,164	)
Restructuring charges		(13,262	)		(4,689	)		(7,543	)
Fair value write-up of acquired inventory sold		—			—			(15,152	)
Acquisition costs		—			(477	)		(446	)
Loss on pension settlement		(2,142	)		—			—
Income (loss) before taxes from continuing operations	$	14,333		$	21,941		$	(14,349	)

	For the Years Ended September 30,
DEPRECIATION and AMORTIZATION	2013		2012		2011
Segment:
Home & Building Products	$	36,195	$	32,034	$	28,796
Telephonics		7,373		7,518		7,234
Plastics		26,738		26,312		24,331
Total segment depreciation and amortization		70,306		65,864		60,361
Corporate		442		400		351
Total consolidated depreciation and amortization	$	70,748	$	66,264	$	60,712
CAPITAL EXPENDITURES
Segment:
Home & Building Products	$	30,695	$	24,648	$	28,083
Telephonics		11,112		11,979		8,291
Plastics		22,509		32,069		50,824
Total segment		64,316		68,696		87,198
Corporate		125		155		419
Total consolidated capital expenditures	$	64,441	$	68,851	$	87,617

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

ASSETS	At September 30, 2013		At September 30, 2012		At September 30, 2011
Segment assets:
Home & Building Products	$	908,386	$	943,766	$	972,714
Telephonics		296,919		255,420		288,968
Plastics		422,730		430,395		450,452
Total segment assets		1,628,035		1,629,581		1,712,134
Corporate		156,455		173,088		148,064
Total continuing assets		1,784,490		1,802,669		1,860,198
Assets of discontinued operations		4,289		3,523		5,056
Consolidated total	$	1,788,779	$	1,806,192	$	1,865,254

Schedule Of Segment Information By Geographic Region [Table Text Block]

Segment information by geographic region was as follows:

	For the Years Ended September 30,
REVENUE BY GEOGRAPHIC AREA	2013		2012		2011
United States	$	1,319,740	$	1,317,911	$	1,265,977
Europe		255,733		255,323		262,518
Canada		114,984		120,457		125,330
South America		103,840		93,243		96,340
All other countries		77,030		74,211		80,637
Consolidated revenue	$	1,871,327	$	1,861,145	$	1,830,802

LONG-LIVED ASSETS BY GEOGRAPHIC AREA	At September 30, 2013		At September 30, 2012		At September 30, 2011
United States	$	421,604	$	422,647	$	394,313
Germany		82,314		84,480		94,800
Canada		46,792		50,894		50,093
All other countries		24,274		29,331		34,033
Consolidated property, plant and equipment, net	$	574,984	$	587,352	$	573,239