Condensed Consolidating Financial Statements of Guarantors of the Notes (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Cash provided by (used in) operating activities of continuing operations	$ 39,641	$ (4,644)
Cash used in operating activities of discontinued operations		981
Net cash provided by (used in) operating activities	39,641	(3,663)
Cash flows from investing activities:
Purchase of property, plant and equipment	(33,518)	(12,067)
Proceeds from sale of building	7,548
Cash paid for acquisitions, net of cash acquired	(78,089)
Cash used in investing activities of continued operations	(104,059)	(12,067)
Cash used in investing activities of discontinued operations		(7)
Net cash used in investing activities	(104,059)	(12,074)
Cash flows from financing activities:
Principal payments under long-term debt agreements and capital leases		(229,375)
Proceeds from borrowings under the revolver	80,000
Paydowns of debt under the revolver	(10,000)
Payments for financing fees	(6,121)
Dividends paid	(193,956)
Cash used in financing activities of continued operations	(130,077)	(229,375)
Cash used in financing activities of discontinued operations	0
Net cash used in financing activities	(130,077)	(229,375)
Effect of exchange rate changes on cash and cash equivalents	(53)	(1,188)
Net decrease in cash and cash equivalents	(194,548)	(246,300)
Change in cash for discontinued operations		(1,812)
Cash and cash equivalents at beginning of period	315,136	393,335
Cash and cash equivalents at end of period	120,588	145,223
Parent Company
Cash flows from operating activities:
Cash provided by (used in) operating activities of continuing operations		(11,026)
Net cash provided by (used in) operating activities	58,909	(11,026)
Cash flows from investing activities:
Purchase of property, plant and equipment	(10,225)	(873)
Proceeds from sale of building	7,548
Cash paid for acquisitions, net of cash acquired	(78,089)
Cash used in investing activities of continued operations		(873)
Net cash used in investing activities	(80,766)	(873)
Cash flows from financing activities:
Principal payments under long-term debt agreements and capital leases		(229,375)
Proceeds from borrowings under the revolver	80,000
Paydowns of debt under the revolver	(10,000)
Payments for financing fees	(6,121)
Dividends paid	(193,956)
Cash used in financing activities of continued operations		(229,375)
Net cash used in financing activities	(130,077)	(229,375)
Net decrease in cash and cash equivalents	(151,934)	(241,274)
Cash and cash equivalents at beginning of period	183,661	261,098
Cash and cash equivalents at end of period	31,727	19,824
Guarantor Subsidiaries
Cash flows from operating activities:
Cash provided by (used in) operating activities of continuing operations		7,070
Net cash provided by (used in) operating activities	5,585	7,070
Cash flows from investing activities:
Purchase of property, plant and equipment	(17,094)	(7,519)
Cash used in investing activities of continued operations		(7,519)
Net cash used in investing activities	(17,094)	(7,519)
Cash flows from financing activities:
Net decrease in cash and cash equivalents	(11,509)	(449)
Cash and cash equivalents at beginning of period	14,589	3,288
Cash and cash equivalents at end of period	3,080	2,839
Non-Guarantor Subsidiaries
Cash flows from operating activities:
Cash provided by (used in) operating activities of continuing operations		(688)
Cash used in operating activities of discontinued operations		981
Net cash provided by (used in) operating activities	(24,853)	293
Cash flows from investing activities:
Purchase of property, plant and equipment	(6,199)	(3,675)
Cash used in investing activities of continued operations		(3,675)
Cash used in investing activities of discontinued operations		(7)
Net cash used in investing activities	(6,199)	(3,682)
Cash flows from financing activities:
Effect of exchange rate changes on cash and cash equivalents	(53)	(1,188)
Net decrease in cash and cash equivalents	(31,105)	(4,577)
Change in cash for discontinued operations		(1,812)
Cash and cash equivalents at beginning of period	116,886	128,949
Cash and cash equivalents at end of period	$ 85,781	$ 122,560