SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - Schedule of Valuation and Qualifying Accounts - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Allowance for Doubtful Accounts [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	$ 5,342	$ 7,336	$ 6,136
Recorded to Cost and Expense	3,168	1,389	4,014
Accounts Written Off, net	(2,152)	(3,139)	(2,769)
Other	67	(244)	(45)
Balance at End of Year	6,425	5,342	7,336
Inventory valuation [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	14,634	16,613	15,728
Recorded to Cost and Expense	12,425	6,476	13,613
Accounts Written Off, net	(9,007)	(7,603)	(12,627)
Other	391	(852)	(101)
Balance at End of Year	18,443	14,634	16,613
Deferred tax valuation allowance [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	10,462	15,649	13,421
Recorded to Cost and Expense	2,370	(5,187)	2,228
Accounts Written Off, net	0	0	0
Other	0	0	0
Balance at End of Year	12,832	10,462	15,649
Bad debts [Member] | Allowance for Doubtful Accounts [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	2,640	3,627	4,080
Recorded to Cost and Expense	347	76	359
Accounts Written Off, net	(783)	(934)	(784)
Other	45	(129)	(28)
Balance at End of Year	2,249	2,640	3,627
Sales returns and allowances [Member] | Allowance for Doubtful Accounts [Member]
Segment Reporting Information [Line Items]
Balance at Beginning of Year	2,702	3,709	2,056
Recorded to Cost and Expense	2,821	1,313	3,655
Accounts Written Off, net	(1,369)	(2,205)	(1,985)
Other	22	(115)	(17)
Balance at End of Year	$ 4,176	$ 2,702	$ 3,709