Condensed Consolidating Financial Statements of Guarantors (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Condensed Parent Company Statement
Net cash (used in) provided by operating activities			$ 27,017	$ 213,035
Cash flows from investing activities:
Purchase of property, plant and equipment	(25,192)	(31,162)	(72,436)	(96,854)
Proceeds from sale of building				7,548
Cash paid for acquisitions, net of cash acquired				(82,472)
Net cash used in investing activities			(72,436)	(171,778)
Cash flows from financing activities:
Principal payments under long-term agreements			(298)	(442)
Proceeds from borrowings under the revolver				80,000
Paydowns of borrowings under the revolver				(80,000)
Payments for financing fees				(7,387)
Dividends paid			(60,063)	(216,926)
Net cash used in financing activities			(60,361)	(224,755)
Effect of exchange rate changes on cash			1,636	(4,254)
Net decrease in cash and cash equivalents			(104,144)	(187,752)
Cash and cash equivalents at beginning of period			198,561	315,136
Cash and cash equivalents at end of period	94,417	127,384	94,417	127,384
Reportable Legal Entities | Parent Company
Condensed Parent Company Statement
Net cash (used in) provided by operating activities			(36,434)	13,906
Cash flows from investing activities:
Purchase of property, plant and equipment			(17,979)	(36,172)
Investment in subsidiary			(6,500)
Proceeds from sale of building				7,548
Cash paid for acquisitions, net of cash acquired				(77,936)
Net cash used in investing activities			(24,479)	(106,560)
Cash flows from financing activities:
Proceeds from borrowings under the revolver				80,000
Paydowns of borrowings under the revolver				(80,000)
Payments for financing fees				(7,387)
Dividends paid			(60,063)	(216,926)
Intercompany accounts			63,355	154,536
Net cash used in financing activities			3,292	(69,777)
Net decrease in cash and cash equivalents			(57,621)	(162,431)
Cash and cash equivalents at beginning of period			81,356	183,661
Cash and cash equivalents at end of period	23,735	21,230	23,735	21,230
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Parent Company Statement
Net cash (used in) provided by operating activities			58,813	231,056
Cash flows from investing activities:
Purchase of property, plant and equipment			(25,615)	(37,062)
Net cash used in investing activities			(25,615)	(37,062)
Cash flows from financing activities:
Dividends paid				(52,416)
Intercompany accounts			(68,555)	(154,536)
Net cash used in financing activities			(68,555)	(206,952)
Net decrease in cash and cash equivalents			(35,357)	(12,958)
Cash and cash equivalents at beginning of period			35,357	14,589
Cash and cash equivalents at end of period		1,631		1,631
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Parent Company Statement
Net cash (used in) provided by operating activities			26,137	72,905
Cash flows from investing activities:
Purchase of property, plant and equipment			(28,842)	(23,620)
Cash paid for acquisitions, net of cash acquired				(4,536)
Net cash used in investing activities			(28,842)	(28,156)
Cash flows from financing activities:
Principal payments under long-term agreements			(298)	(442)
Dividends paid			(16,843)	(52,416)
Capital contribution			6,500
Intercompany accounts			5,200
Net cash used in financing activities			(5,441)	(52,858)
Effect of exchange rate changes on cash			1,636	(4,254)
Net decrease in cash and cash equivalents			(6,510)	(12,363)
Cash and cash equivalents at beginning of period			81,848	116,886
Cash and cash equivalents at end of period	75,338	104,523	75,338	104,523
Eliminations
Condensed Parent Company Statement
Net cash (used in) provided by operating activities			(21,499)	(104,832)
Cash flows from investing activities:
Investment in subsidiary			6,500
Net cash used in investing activities			6,500
Cash flows from financing activities:
Dividends paid			16,843	104,832
Capital contribution			(6,500)
Net cash used in financing activities			10,343	104,832
Net decrease in cash and cash equivalents			(4,656)
Cash and cash equivalents at end of period	$ (4,656)		$ (4,656)