CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Detail) - Summary of consolidated statement of operations (USD $) In Thousands, unless otherwise specified	3 Months Ended									12 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Mar. 31, 2010	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Revenue	$ 447,436	$ 480,246	$ 482,431	$ 451,032	$ 484,989	$ 455,282	$ 476,129	$ 414,402		$ 1,861,145	$ 1,830,802	$ 1,293,996
Cost of goods and services										1,442,340	1,437,341	1,005,692
Gross profit	97,651	115,645	102,801	102,708	105,290	99,169	101,143	87,859		418,805	393,461	288,304
Selling, general and administrative expenses										341,696	330,369	261,403
Restructuring and other related charges										4,689	7,543	4,180
Total operating expenses										346,385	337,912	265,583
Income (loss) from operations										72,420	55,549	22,721
Other income (expense)
Interest income (expense), net										(51,715)	(47,448)	(11,913)
Loss from debt extinguishment, net									(16,813)	0	(26,164)	(1,117)
Other intercompany												0
Other, net										1,236	3,714	4,121
Total other income (expense)										(50,479)	(69,898)	(8,909)
Income (loss) before taxes										21,941	(14,349)	13,812
Provision (benefit) for income taxes										4,930	(6,918)	4,308
Income (loss) before equity in net income of subsidiaries										17,011	(7,431)	9,504
Equity in net income (loss) of subsidiaries										0	0	0
Income (loss) from operations										17,011	(7,431)	9,504
Income from discontinued operations										0	0	88
Net income (loss)	3,448	9,048	2,027	2,488	3,378	4,872	(14,001)	(1,680)		17,011	(7,431)	9,592
Parent Company [Member]
Revenue										0	0	0
Cost of goods and services										0	0	0
Gross profit										0	0	0
Selling, general and administrative expenses										18,982	16,292	26,491
Restructuring and other related charges										0	364	0
Total operating expenses										18,982	16,656	26,491
Income (loss) from operations										(18,982)	(16,656)	(26,491)
Other income (expense)
Interest income (expense), net										(14,541)	(12,607)	(8,607)
Loss from debt extinguishment, net											0	(6)
Other intercompany												0
Other, net										13	(648)	999
Total other income (expense)										(14,528)	(13,255)	(7,614)
Income (loss) before taxes										(33,510)	(29,911)	(34,105)
Provision (benefit) for income taxes										(20,363)	(14,943)	(14,853)
Income (loss) before equity in net income of subsidiaries										(13,147)	(14,968)	(19,252)
Equity in net income (loss) of subsidiaries										31,500	7,013	28,844
Income (loss) from operations											(7,955)	9,592
Income from discontinued operations											0	0
Net income (loss)										18,353	(7,955)	9,592
Guarantor Subsidiaries [Member]
Revenue										1,414,910	1,379,535	983,665
Cost of goods and services										1,060,183	1,055,520	740,622
Gross profit										354,727	324,015	243,043
Selling, general and administrative expenses										267,677	256,880	190,308
Restructuring and other related charges										4,674	7,018	4,180
Total operating expenses										272,351	263,898	194,488
Income (loss) from operations										82,376	60,117	48,555
Other income (expense)
Interest income (expense), net										(25,183)	(26,414)	6,010
Loss from debt extinguishment, net											(397)	(1,111)
Other intercompany												(5,217)
Other, net										10,826	6,882	6,917
Total other income (expense)										(14,357)	(19,929)	6,599
Income (loss) before taxes										68,019	40,188	55,154
Provision (benefit) for income taxes										25,366	17,977	18,017
Income (loss) before equity in net income of subsidiaries										42,653	22,211	37,137
Equity in net income (loss) of subsidiaries										(11,007)	1,139	1,115
Income (loss) from operations											23,350	38,252
Income from discontinued operations											0	0
Net income (loss)										31,646	23,350	38,252
Non-Guarantor Subsidiaries [Member]
Revenue										499,860	489,342	323,867
Cost of goods and services										428,760	421,261	279,632
Gross profit										71,100	68,081	44,235
Selling, general and administrative expenses										62,564	57,538	44,860
Restructuring and other related charges										15	161	0
Total operating expenses										62,579	57,699	44,860
Income (loss) from operations										8,521	10,382	(625)
Other income (expense)
Interest income (expense), net										(11,991)	(8,427)	(9,316)
Loss from debt extinguishment, net											(25,767)	0
Other intercompany												5,217
Other, net										(7,756)	(1,338)	(2,513)
Total other income (expense)										(19,747)	(35,532)	(6,612)
Income (loss) before taxes										(11,226)	(25,150)	(7,237)
Provision (benefit) for income taxes										(73)	(9,952)	1,144
Income (loss) before equity in net income of subsidiaries										(11,153)	(15,198)	(8,381)
Equity in net income (loss) of subsidiaries										42,653	22,211	37,137
Income (loss) from operations											7,013	28,756
Income from discontinued operations											0	88
Net income (loss)										31,500	7,013	28,844
Consolidation, Eliminations [Member]
Revenue										(53,625)	(38,075)	(13,536)
Cost of goods and services										(46,603)	(39,440)	(14,562)
Gross profit										(7,022)	1,365	1,026
Selling, general and administrative expenses										(7,527)	(341)	(256)
Restructuring and other related charges										0	0	0
Total operating expenses										(7,527)	(341)	(256)
Income (loss) from operations										505	1,706	1,282
Other income (expense)
Interest income (expense), net										0	0	0
Loss from debt extinguishment, net											0	0
Other intercompany												0
Other, net										(1,847)	(1,182)	(1,282)
Total other income (expense)										(1,847)	(1,182)	(1,282)
Income (loss) before taxes										(1,342)	524	0
Provision (benefit) for income taxes										0	0	0
Income (loss) before equity in net income of subsidiaries										(1,342)	524	0
Equity in net income (loss) of subsidiaries										(63,146)	(30,363)	(67,096)
Income (loss) from operations											(29,839)	(67,096)
Income from discontinued operations											0	0
Net income (loss)										$ (64,488)	$ (29,839)	$ (67,096)