CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Detail) - Summary of consolidated statement of operations (USD $) In Thousands, unless otherwise specified	3 Months Ended						9 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Jun. 30, 2012	Jun. 30, 2011
Revenue	$ 480,246			$ 455,282			$ 1,413,709	$ 1,345,813
Cost of goods and services	364,601			356,113			1,092,555	1,057,642
Gross profit	115,645			99,169			321,154	288,171
Selling, general and administrative expenses	87,443			82,045			256,661	246,853
Total operating expenses	87,443			84,163			258,456	251,576
Income (loss) from operations	28,202			15,006			62,698	36,595
Restructuring and other related charges	0	0	1,795	2,118	1,212	1,393	1,795	4,723
Other income (expense)
Interest income (expense), net	(12,855)			(12,463)			(38,775)	(34,839)
Loss from debt extinguishment, net	0			0	(26,164)		0	(26,164)
Other, net	(354)			145			723	3,407
Total other income (expense)	(13,209)			(12,318)			(38,052)	(57,596)
Income (loss) before taxes	14,993			2,688			24,646	(21,001)
Provision (benefit) for income taxes	5,945			(2,184)			11,083	(10,192)
Income (loss) before equity in net income (loss) of subsidiaries	9,048			4,872			13,563	(10,809)
Equity in net income (loss) of subsidiaries	0			0			0	0
Net income (loss)	9,048			4,872			13,563	(10,809)
Parent Company [Member]
Revenue	0			0			0	0
Cost of goods and services	0			0			0	0
Gross profit	0			0			0	0
Selling, general and administrative expenses	5,420			6,285			14,665	16,848
Total operating expenses	5,420			6,285			14,665	16,848
Income (loss) from operations	(5,420)			(6,285)			(14,665)	(16,848)
Restructuring and other related charges				0			0	0
Other income (expense)
Interest income (expense), net	(3,801)			(3,600)			(10,545)	(8,997)
Loss from debt extinguishment, net								0
Other, net	(40)			(1,349)			135	(42)
Total other income (expense)	(3,841)			(4,949)			(10,410)	(9,039)
Income (loss) before taxes	(9,261)			(11,234)			(25,075)	(25,887)
Provision (benefit) for income taxes	(4,824)			(8,708)			(12,583)	(14,594)
Income (loss) before equity in net income (loss) of subsidiaries	(4,437)			(2,526)			(12,492)	(11,293)
Equity in net income (loss) of subsidiaries	14,231			6,875			27,053	(39)
Net income (loss)	9,794			4,349			14,561	(11,332)
Guarantor Subsidiaries [Member]
Revenue	375,836			344,229			1,077,454	1,013,130
Cost of goods and services	270,653			255,237			804,521	778,650
Gross profit	105,183			88,992			272,933	234,480
Selling, general and administrative expenses	72,300			62,190			200,474	187,151
Total operating expenses	72,300			64,206			202,253	191,649
Income (loss) from operations	32,883			24,786			70,680	42,831
Restructuring and other related charges				2,016			1,779	4,498
Other income (expense)
Interest income (expense), net	(6,094)			2,667			(18,156)	4,366
Loss from debt extinguishment, net								(397)
Other, net	2,761			7,139			8,350	4,908
Total other income (expense)	(3,333)			9,806			(9,806)	8,877
Income (loss) before taxes	29,550			34,592			60,874	51,708
Provision (benefit) for income taxes	10,604			10,254			23,401	21,471
Income (loss) before equity in net income (loss) of subsidiaries	18,946			24,338			37,473	30,237
Equity in net income (loss) of subsidiaries	(4,694)			(12,237)			(10,296)	2,122
Net income (loss)	14,252			12,101			27,177	32,359
Non-Guarantor Subsidiaries [Member]
Revenue	120,457			121,993			379,617	361,365
Cost of goods and services	104,030			112,185			325,917	308,669
Gross profit	16,427			9,808			53,700	52,696
Selling, general and administrative expenses	15,405			13,663			47,389	43,103
Total operating expenses	15,405			13,765			47,405	43,328
Income (loss) from operations	1,022			(3,957)			6,295	9,368
Restructuring and other related charges				102			16	225
Other income (expense)
Interest income (expense), net	(2,960)			(11,530)			(10,074)	(30,208)
Loss from debt extinguishment, net								(25,767)
Other, net	(2,613)			(5,706)			(6,376)	(738)
Total other income (expense)	(5,573)			(17,236)			(16,450)	(56,713)
Income (loss) before taxes	(4,551)			(21,193)			(10,155)	(47,345)
Provision (benefit) for income taxes	165			(3,730)			265	(17,069)
Income (loss) before equity in net income (loss) of subsidiaries	(4,716)			(17,463)			(10,420)	(30,276)
Equity in net income (loss) of subsidiaries	18,947			24,338			37,473	30,237
Net income (loss)	14,231			6,875			27,053	(39)
Consolidation, Eliminations [Member]
Revenue	(16,047)			(10,940)			(43,362)	(28,682)
Cost of goods and services	(10,082)			(11,309)			(37,883)	(29,677)
Gross profit	(5,965)			369			(5,479)	995
Selling, general and administrative expenses	(5,682)			(93)			(5,867)	(249)
Total operating expenses	(5,682)			(93)			(5,867)	(249)
Income (loss) from operations	(283)			462			388	1,244
Restructuring and other related charges				0			0	0
Other income (expense)
Interest income (expense), net	0			0			0	0
Loss from debt extinguishment, net								0
Other, net	(462)			61			(1,386)	(721)
Total other income (expense)	(462)			61			(1,386)	(721)
Income (loss) before taxes	(745)			523			(998)	523
Provision (benefit) for income taxes	0			0			0	0
Income (loss) before equity in net income (loss) of subsidiaries	(745)			523			(998)	523
Equity in net income (loss) of subsidiaries	(28,484)			(18,976)			(54,230)	(32,320)
Net income (loss)	$ (29,229)			$ (18,453)			$ (55,228)	$ (31,797)