CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of Condensed Consolidating Statements of Operations and Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended						9 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2014	Jun. 30, 2013
Condensed Income Statements, Captions [Line Items]
Revenue	$ 505,039			$ 509,826			$ 1,466,184	$ 1,422,318
Cost of goods and services	386,732			401,515			1,132,387	1,110,840
Gross profit	118,307			108,311			333,797	311,478
Selling, general and administrative expenses	96,135			86,345			273,437	254,623
Restructuring and other related charges	358	692	842	1,604	9,336	1,108	1,892	12,048
Total operating expenses	96,493			87,949			275,329	266,671
Income from operations	21,814			20,362			58,468	44,807
Other income (expense)
Interest income (expense), net	(11,541)			(13,137)			(37,003)	(39,125)
Loss from debt extinguishment, net	0			0			(38,890)	0
Other, net	2,621			607			4,310	1,515
Total other expense, net	(8,920)			(12,530)			(71,583)	(37,610)
Income (loss) before taxes	12,894			7,832			(13,115)	7,197
Provision (benefit) for income taxes	(1,570)			4,229			(4,990)	3,855
Income (loss) before equity in net income of subsidiaries	14,464			3,603			(8,125)	3,342
Equity in net income (loss) of subsidiaries	0			0			0	0
Net income (loss)	14,464			3,603			(8,125)	3,342
Foreign currency translation adjustments	2,809			(7,884)			896	(10,805)
Other comprehensive income (loss), net of taxes	3,126			(7,552)			2,628	4,852
Comprehensive income (loss), net	17,590			(3,949)			(5,497)	(2,611)
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Revenue	0			0			0	0
Cost of goods and services	0			0			0	0
Gross profit	0			0			0	0
Selling, general and administrative expenses	7,034			4,141			20,525	15,419
Restructuring and other related charges	0			0			0	0
Total operating expenses	7,034			4,141			20,525	15,419
Income from operations	(7,034)			(4,141)			(20,525)	(15,419)
Other income (expense)
Interest income (expense), net	(1,750)			(3,559)			(8,240)	(10,781)
Loss from debt extinguishment, net	0						(38,890)
Other, net	1,436			12			1,563	367
Total other expense, net	(314)			(3,547)			(45,567)	(10,414)
Income (loss) before taxes	(7,348)			(7,688)			(66,092)	(25,833)
Provision (benefit) for income taxes	(9,322)			(2,913)			(24,901)	(12,672)
Income (loss) before equity in net income of subsidiaries	1,974			(4,775)			(41,191)	(13,161)
Equity in net income (loss) of subsidiaries	12,490			8,378			33,066	16,503
Net income (loss)	14,464			3,603			(8,125)	3,342
Foreign currency translation adjustments								0
Other comprehensive income (loss), net of taxes	171			211			511	633
Comprehensive income (loss), net	14,635			3,814			(7,614)	3,975
Guarantor Companies [Member]
Condensed Income Statements, Captions [Line Items]
Revenue	392,361			408,371			1,133,510	1,109,275
Cost of goods and services	295,148			317,156			860,322	848,342
Gross profit	97,213			91,215			273,188	260,933
Selling, general and administrative expenses	71,110			69,015			207,725	198,601
Restructuring and other related charges	349			1,565			1,841	8,045
Total operating expenses	71,459			70,580			209,566	206,646
Income from operations	25,754			20,635			63,622	54,287
Other income (expense)
Interest income (expense), net	(7,367)			(6,982)			(21,946)	(20,685)
Loss from debt extinguishment, net	0						0
Other, net	2,497			2,462			5,569	6,227
Total other expense, net	(4,870)			(4,520)			(16,377)	(14,458)
Income (loss) before taxes	20,884			16,115			47,245	39,829
Provision (benefit) for income taxes	7,322			6,745			19,014	15,693
Income (loss) before equity in net income of subsidiaries	13,562			9,370			28,231	24,136
Equity in net income (loss) of subsidiaries	(1,161)			(969)			4,587	(7,565)
Net income (loss)	12,401			8,401			32,818	16,571
Foreign currency translation adjustments								330
Other comprehensive income (loss), net of taxes	(592)			836			1,277	3,963
Comprehensive income (loss), net	11,809			9,237			34,095	20,864
Non-Guarantor Companies [Member]
Condensed Income Statements, Captions [Line Items]
Revenue	126,343			114,004			375,877	352,514
Cost of goods and services	103,938			95,461			310,887	297,826
Gross profit	22,405			18,543			64,990	54,688
Selling, general and administrative expenses	19,617			14,793			50,025	45,327
Restructuring and other related charges	9			39			51	4,003
Total operating expenses	19,626			14,832			50,076	49,330
Income from operations	2,779			3,711			14,914	5,358
Other income (expense)
Interest income (expense), net	(2,424)			(2,596)			(6,817)	(7,659)
Loss from debt extinguishment, net	0						0
Other, net	(997)			(1,710)			(2,365)	(4,498)
Total other expense, net	(3,421)			(4,306)			(9,182)	(12,157)
Income (loss) before taxes	(642)			(595)			5,732	(6,799)
Provision (benefit) for income taxes	430			397			897	834
Income (loss) before equity in net income of subsidiaries	(1,072)			(992)			4,835	(7,633)
Equity in net income (loss) of subsidiaries	13,562			9,370			28,231	24,136
Net income (loss)	12,490			8,378			33,066	16,503
Foreign currency translation adjustments								(11,135)
Other comprehensive income (loss), net of taxes	3,547			(8,599)			840	256
Comprehensive income (loss), net	16,037			(221)			33,906	5,624
Elimination [Member]
Condensed Income Statements, Captions [Line Items]
Revenue	(13,665)			(12,549)			(43,203)	(39,471)
Cost of goods and services	(12,354)			(11,102)			(38,822)	(35,328)
Gross profit	(1,311)			(1,447)			(4,381)	(4,143)
Selling, general and administrative expenses	(1,626)			(1,604)			(4,838)	(4,724)
Restructuring and other related charges	0			0			0	0
Total operating expenses	(1,626)			(1,604)			(4,838)	(4,724)
Income from operations	315			157			457	581
Other income (expense)
Interest income (expense), net	0			0			0	0
Loss from debt extinguishment, net	0						0
Other, net	(315)			(157)			(457)	(581)
Total other expense, net	(315)			(157)			(457)	(581)
Income (loss) before taxes	0			0			0	0
Provision (benefit) for income taxes	0			0			0	0
Income (loss) before equity in net income of subsidiaries	0			0			0	0
Equity in net income (loss) of subsidiaries	(24,891)			(16,779)			(65,884)	(33,074)
Net income (loss)	(24,891)			(16,779)			(65,884)	(33,074)
Foreign currency translation adjustments								0
Other comprehensive income (loss), net of taxes	0			0			0	0
Comprehensive income (loss), net	$ (24,891)			$ (16,779)			$ (65,884)	$ (33,074)