SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - Schedule of Valuation and Qualifying Accounts - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Allowance for Doubtful Accounts [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	$ 7,336	$ 6,136	$ 5,433
Recorded to Cost and Expense	1,389	4,014	3,673
Accounts Written Off, net	(3,139)	(2,769)	(2,968)
Other	(244)	(45)	(2)
Balance at End of Year	5,342	7,336	6,136
Inventory valuation [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	16,613	15,728	18,787
Recorded to Cost and Expense	6,476	13,613	5,788
Accounts Written Off, net	(7,603)	(12,627)	(8,490)
Other	(852)	(101)	(357)
Balance at End of Year	14,634	16,613	15,728
Deferred tax valuation allowance [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	15,649	13,421	10,541
Recorded to Cost and Expense	(5,187)	2,228	2,880
Accounts Written Off, net	0	0	0
Other	0	0	0
Balance at End of Year	10,462	15,649	13,421
Bad debts [Member] | Allowance for Doubtful Accounts [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	3,627	4,080	4,146
Recorded to Cost and Expense	76	359	1,813
Accounts Written Off, net	(934)	(784)	(1,888)
Other	(129)	(28)	9
Balance at End of Year	2,640	3,627	4,080
Sales returns and allowances [Member] | Allowance for Doubtful Accounts [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	3,709	2,056	1,287
Recorded to Cost and Expense	1,313	3,655	1,860
Accounts Written Off, net	(2,205)	(1,985)	(1,080)
Other	(115)	(17)	(11)
Balance at End of Year	$ 2,702	$ 3,709	$ 2,056