Condensed Consolidating Financial Statements of Guarantors (Details 4) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended								12 Months Ended
	Mar. 21, 2013	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income		$ (141,140)	$ 33,267	$ 9,900	$ 53,821					$ (44,152)	$ 129,480	$ 146,471
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Impairments and disposals of assets										214,813	5,269	764
Loss from discontinued operations						(43,461)	(51,250)	10,401	(45,171)			23,048
Depreciation of property, plant and equipment										60,530	64,883	58,311
Amortization of intangible assets										46,027	45,753	43,960
Foreign currency transaction loss (gain)										1,702	(946)	(289)
Amortization and write-off of deferred financing fees										19,033	22,504	23,700
Write-off of financing fees	4,232
Stock-based compensation										4,088	2,043	2,680
Allowance for doubtful accounts										988	(2,587)	297
Amortization of incremental inventory fair value											2,417
Inventory reserves										6,006	2,042	(2,652)
Deferred income taxes										(48,881)	5,293	(17,057)
Call premium on term loan											(15,075)
Changes in operating assets and liabilities:
Accounts receivable										(6,700)	(4,696)	(22,380)
Inventories										(123,071)	(14,350)	(44,790)
Other assets										372	(3,733)	(2,147)
Accounts payable										(30,932)	45,753	16,097
Accrued expenses and other liabilities										2,921	27,526	5,491
Net cash provided by operating activities										102,744	311,576	231,504
Cash provided by operating activities of discontinued operations												2,546
Net cash provided by operating activities										102,744	311,576	234,050
Cash flows from investing activities:
Purchases of property, plant and equipment										(105,207)	(129,220)	(86,314)
Proceeds from sale of buildings and equipment										7,188	7,548
Cash paid for acquisitions, net of cash acquired											(82,473)
Net proceeds from sale of discontinued operations												515
Cash used in investing activities of continuing operations										(98,019)	(204,145)	(85,799)
Cash flows from financing activities:
Principal payments										(378)	(603)	(229,375)
Payments for financing fees											(7,387)
Proceeds from borrowings under the revolver											80,000
Paydowns of borrowings under the revolver											(80,000)
Dividends paid										(60,063)	(216,926)
Capital contribution												15
Cash used in by financing activities										(60,441)	(224,916)	(229,360)
Effect of exchange rate changes on cash and cash equivalents										(3,357)	910	1,839
Net decrease in cash and cash equivalents										(59,073)	(116,575)	(79,270)
Change in cash for discontinued operations												1,071
Cash and cash equivalents at beginning of year					198,561				315,136	198,561	315,136	393,335
Cash and cash equivalents at end of year		139,488				198,561				139,488	198,561	315,136
Reportable Legal Entities | Parent Company
Cash flows from operating activities:
Net income										(44,152)	129,480	146,471
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries										20,328	192,160	191,472
Depreciation of property, plant and equipment										11,956	8,213	5,275
Foreign currency transaction loss (gain)											(745)	(12)
Amortization and write-off of deferred financing fees										19,033	22,504	23,700
Stock-based compensation										3,521	1,845	2,482
Call premium on term loan											(15,075)
Changes in operating assets and liabilities:
Dividends received										126,596	62,010	145,174
Net cash provided by operating activities										96,626	16,072	131,618
Net cash provided by operating activities												131,618
Cash flows from investing activities:
Purchases of property, plant and equipment										(22,031)	(35,186)	(20,287)
Proceeds from sale of buildings and equipment											7,548
Cash paid for acquisitions, net of cash acquired											(77,936)
Investment in subsidiary										6,500
Net proceeds from sale of discontinued operations												515
Cash used in investing activities of continuing operations										(28,531)	(105,574)	(19,772)
Cash flows from financing activities:
Principal payments												(224,325)
Payments for financing fees											(7,387)
Proceeds from borrowings under the revolver											80,000
Paydowns of borrowings under the revolver											(80,000)
Dividends paid										(60,063)	(216,926)
Intercompany										(11,838)	211,510	35,027
Capital contribution												15
Cash used in by financing activities										(71,901)	(12,803)	(189,283)
Net decrease in cash and cash equivalents										(3,806)	(102,305)	(77,437)
Cash and cash equivalents at beginning of year					81,356				183,661	81,356	183,661	261,098
Cash and cash equivalents at end of year		77,550				81,356				77,550	81,356	183,661
Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from operating activities:
Net income										(101,895)	87,010	116,833
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries										24,086	20,010	16,525
Impairments and disposals of assets										213,314	5,014	266
Depreciation of property, plant and equipment										28,234	40,124	37,603
Amortization of intangible assets										42,590	42,341	40,680
Foreign currency transaction loss (gain)										1,372
Stock-based compensation										185	72	72
Allowance for doubtful accounts										407	(2,587)	297
Amortization of incremental inventory fair value											2,417
Inventory reserves										2,874	2,042	(2,652)
Deferred income taxes										(49,158)	5,293	(23,852)
Changes in operating assets and liabilities:
Accounts receivable										(3,956)	9,126	(18,843)
Inventories										(88,597)	(11,297)	(28,139)
Other assets										7,451	1,721	2,066
Accounts payable										(56,196)	42,331	14,220
Accrued expenses and other liabilities										(973)	20,544	(14,924)
Dividends received										25,341	27,589	3,186
Intercompany accounts										545	(44,124)	22,778
Net cash provided by operating activities										(3,638)	295,854	87,510
Net cash provided by operating activities												87,510
Cash flows from investing activities:
Purchases of property, plant and equipment										(34,701)	(59,039)	(41,182)
Proceeds from sale of buildings and equipment										7,178
Cash paid for acquisitions, net of cash acquired											(4,537)
Cash used in investing activities of continuing operations										(27,523)	(63,576)	(41,182)
Cash flows from financing activities:
Intercompany										(3,445)	(211,510)	(35,027)
Cash used in by financing activities										(3,445)	(211,510)	(35,027)
Net decrease in cash and cash equivalents										(34,606)	20,768	11,301
Cash and cash equivalents at beginning of year					35,357				14,589	35,357	14,589	3,288
Cash and cash equivalents at end of year		751				35,357				751	35,357	14,589
Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from operating activities:
Net income										146,309	125,160	91,164
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Impairments and disposals of assets										1,499	255	498
Loss from discontinued operations												23,048
Depreciation of property, plant and equipment										20,340	16,546	15,433
Amortization of intangible assets										3,437	3,412	3,280
Foreign currency transaction loss (gain)										330	(201)	(277)
Stock-based compensation										382	126	126
Allowance for doubtful accounts										581
Inventory reserves										3,132
Deferred income taxes										277		6,795
Changes in operating assets and liabilities:
Accounts receivable										(2,744)	(13,822)	(3,537)
Inventories										(34,474)	(3,053)	(16,651)
Other assets										(7,079)	(5,454)	(4,213)
Accounts payable										25,264	3,422	1,877
Accrued expenses and other liabilities										3,894	6,982	20,415
Intercompany accounts										(545)	44,124	(22,778)
Net cash provided by operating activities										161,693	89,249	160,736
Cash provided by operating activities of discontinued operations												2,546
Net cash provided by operating activities												163,282
Cash flows from investing activities:
Purchases of property, plant and equipment										(48,475)	(34,995)	(24,845)
Proceeds from sale of buildings and equipment										10
Cash used in investing activities of continuing operations										(48,465)	(34,995)	(24,845)
Cash flows from financing activities:
Principal payments										(378)	(603)	(5,050)
Dividends paid										(151,937)	(89,599)	(148,360)
Intercompany										15,283
Capital contribution										6,500
Cash used in by financing activities										(130,532)	(90,202)	(153,410)
Effect of exchange rate changes on cash and cash equivalents										(3,357)	910	1,839
Net decrease in cash and cash equivalents										(20,661)	(35,038)	(13,134)
Change in cash for discontinued operations												1,071
Cash and cash equivalents at beginning of year					81,848				116,886	81,848	116,886	128,949
Cash and cash equivalents at end of year		61,187				81,848				61,187	81,848	116,886
Eliminations
Cash flows from operating activities:
Net income										(44,414)	(212,170)	(207,997)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries										(44,414)	(212,170)	(207,997)
Changes in operating assets and liabilities:
Dividends received										(151,937)	(89,599)	(148,360)
Net cash provided by operating activities										(151,937)	(89,599)	(148,360)
Net cash provided by operating activities												(148,360)
Cash flows from investing activities:
Investment in subsidiary										(6,500)
Cash used in investing activities of continuing operations										6,500
Cash flows from financing activities:
Dividends paid										151,937	89,599	148,360
Capital contribution										(6,500)
Cash used in by financing activities										145,437	89,599	148,360
As Reported | Reportable Legal Entities | Parent Company
Cash flows from operating activities:
Net income											129,500	146,500
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries											(295,500)	(290,600)
Changes in operating assets and liabilities:
Intercompany accounts											378,000	279,300
Net cash provided by operating activities											227,600
Net cash provided by operating activities												166,600
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired											(77,900)
Cash used in investing activities of continuing operations											(105,600)
Cash flows from financing activities:
Dividends paid											(216,900)
Cash used in by financing activities											(224,300)	(224,300)
As Reported | Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from operating activities:
Net income											170,400	199,400
Changes in operating assets and liabilities:
Intercompany accounts											(243,700)	(153,700)
Net cash provided by operating activities											84,900
Net cash provided by operating activities												52,500
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired											(4,500)
Cash used in investing activities of continuing operations											(63,600)
Cash flows from financing activities:
Cash used in by financing activities											(600)
As Reported | Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from operating activities:
Net income											125,200	91,200
Changes in operating assets and liabilities:
Intercompany accounts											(134,300)	(125,600)
Net cash provided by operating activities											(1,000)
Net cash provided by operating activities												14,900
Cash flows from investing activities:
Cash used in investing activities of continuing operations											(35,000)
Cash flows from financing activities:
Cash used in by financing activities												(5,100)
As Reported | Eliminations
Cash flows from operating activities:
Net income											(295,500)	(290,600)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries											295,500	290,600
As Revised | Reportable Legal Entities | Parent Company
Cash flows from operating activities:
Net income											129,500	146,500
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries											(192,200)	(191,500)
Changes in operating assets and liabilities:
Dividends received											62,000	145,200
Net cash provided by operating activities											16,100
Net cash provided by operating activities												131,600
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired											(77,900)
Cash used in investing activities of continuing operations											(105,600)
Cash flows from financing activities:
Dividends paid											(216,900)
Cash used in by financing activities											(12,800)	(189,300)
As Revised | Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from operating activities:
Net income											87,000	116,800
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries											(20,000)	(16,500)
Changes in operating assets and liabilities:
Dividends received											27,600	3,200
Intercompany accounts											44,100	(22,800)
Net cash provided by operating activities											295,900
Net cash provided by operating activities												87,500
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired											(4,500)
Cash used in investing activities of continuing operations											(63,600)
Cash flows from financing activities:
Cash used in by financing activities											(211,500)	(35,000)
As Revised | Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from operating activities:
Net income											125,200	91,200
Changes in operating assets and liabilities:
Intercompany accounts											(44,100)	22,800
Net cash provided by operating activities											89,200
Net cash provided by operating activities												163,300
Cash flows from investing activities:
Cash used in investing activities of continuing operations											(35,000)
Cash flows from financing activities:
Dividends paid											(89,600)	(148,400)
Cash used in by financing activities											(90,200)	(153,400)
As Revised | Eliminations
Cash flows from operating activities:
Net income											(212,200)	(208,000)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in earnings of subsidiaries											212,200	208,000
Changes in operating assets and liabilities:
Dividends received											(89,600)	(148,400)
Net cash provided by operating activities											(89,600)
Net cash provided by operating activities												(148,400)
Cash flows from financing activities:
Dividends paid											89,600	148,400
Cash used in by financing activities											$ 89,600	$ 148,400