CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Detail) - Summary of consolidated cash flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 558	$ 2,487
Net cash provided by (used in) operating activities	(32,502)	(13,843)
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	(17,288)	(19,892)
Acquired business, net of cash acquired	0	(22,432)
Intercompany distributions	0
Proceeds from sale of assets	1,055	61
Net cash provided by (used in) investing activities	(16,233)	(42,263)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of shares for treasury	(7,336)	(2,351)
Proceeds from issuance of long-term debt	303	0
Payments of long-term debt	(4,062)	(6,826)
Intercompany debt		0
Financing costs	0	(4)
Decrease in short-term borrowings	1,643	0
Tax effect from exercise/vesting of equity awards, net	150	834
Dividend	(1,464)	(1,184)
Other, net	184	(14)
Net cash provided by (used in) financing activities	(10,582)	(9,545)
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	(463)	(277)
Net cash used in discontinued operations	(463)	(277)
Effect of exchange rate changes on cash and equivalents	191	257
NET INCREASE (DECREASE) IN CASH AND EQUIVALENT	(59,589)	(65,671)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	209,654	243,029
CASH AND EQUIVALENTS AT END OF PERIOD	150,065	177,358
Parent Company [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	637	2,487
Net cash provided by (used in) operating activities	(37,574)	(36,903)
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	14	(66)
Acquired business, net of cash acquired		0
Intercompany distributions	10,000
Proceeds from sale of assets	0	0
Net cash provided by (used in) investing activities	10,014	(66)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of shares for treasury	(7,336)	(2,351)
Proceeds from issuance of long-term debt	0
Payments of long-term debt	(406)	(406)
Intercompany debt		(23,000)
Financing costs		(4)
Decrease in short-term borrowings	0
Tax effect from exercise/vesting of equity awards, net	150	834
Dividend	(1,464)	(1,184)
Other, net	185	(14)
Net cash provided by (used in) financing activities	(8,871)	(26,125)
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	0
Net cash used in discontinued operations	0	0
Effect of exchange rate changes on cash and equivalents	0	0
NET INCREASE (DECREASE) IN CASH AND EQUIVALENT	(36,431)	(63,094)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	125,093	178,448
CASH AND EQUIVALENTS AT END OF PERIOD	88,662	115,354
Guarantor Subsidiaries [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	6,340	6,059
Net cash provided by (used in) operating activities	(9,117)	2,275
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	(16,663)	(15,747)
Acquired business, net of cash acquired		(22,432)
Intercompany distributions	(10,000)
Proceeds from sale of assets	1,055	21
Net cash provided by (used in) investing activities	(25,608)	(38,158)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of shares for treasury	0	0
Proceeds from issuance of long-term debt	303
Payments of long-term debt	(256)	(3,604)
Intercompany debt		0
Financing costs		0
Decrease in short-term borrowings	0
Tax effect from exercise/vesting of equity awards, net	0	0
Dividend	0	0
Other, net	18,601	42,667
Net cash provided by (used in) financing activities	18,648	39,063
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	0
Net cash used in discontinued operations	0	0
Effect of exchange rate changes on cash and equivalents	0	0
NET INCREASE (DECREASE) IN CASH AND EQUIVALENT	(16,077)	3,180
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	34,782	15,164
CASH AND EQUIVALENTS AT END OF PERIOD	18,705	18,344
Non-Guarantor Subsidiaries [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	6,304	5,995
Net cash provided by (used in) operating activities	14,189	20,785
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	(639)	(4,079)
Acquired business, net of cash acquired		0
Intercompany distributions	0
Proceeds from sale of assets	0	40
Net cash provided by (used in) investing activities	(639)	(4,039)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of shares for treasury	0	0
Proceeds from issuance of long-term debt	0
Payments of long-term debt	(3,400)	(2,816)
Intercompany debt		23,000
Financing costs		0
Decrease in short-term borrowings	1,643
Tax effect from exercise/vesting of equity awards, net	0	0
Dividend	0	0
Other, net	(18,602)	(42,667)
Net cash provided by (used in) financing activities	(20,359)	(22,483)
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	(463)
Net cash used in discontinued operations	(463)	(277)
Effect of exchange rate changes on cash and equivalents	191	257
NET INCREASE (DECREASE) IN CASH AND EQUIVALENT	(7,081)	(5,757)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	49,779	49,417
CASH AND EQUIVALENTS AT END OF PERIOD	42,698	43,660
Consolidation, Eliminations [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	(12,723)	(12,054)
Net cash provided by (used in) operating activities	0	0
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	0	0
Acquired business, net of cash acquired		0
Intercompany distributions	0
Proceeds from sale of assets	0	0
Net cash provided by (used in) investing activities	0	0
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of shares for treasury	0	0
Proceeds from issuance of long-term debt	0
Payments of long-term debt	0	0
Intercompany debt		0
Financing costs		0
Decrease in short-term borrowings	0
Tax effect from exercise/vesting of equity awards, net	0	0
Dividend	0	0
Other, net	0	0
Net cash provided by (used in) financing activities	0	0
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	0
Net cash used in discontinued operations	0	0
Effect of exchange rate changes on cash and equivalents	0	0
NET INCREASE (DECREASE) IN CASH AND EQUIVALENT	0	0
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	0	0
CASH AND EQUIVALENTS AT END OF PERIOD	$ 0	$ 0