GOODWILL AND INTANGIBLE ASSETS (Carrying Amounts of Intangible Assets) (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2016	Sep. 30, 2015
Intangible assets subject to amortization:
Gross Carrying Amount	$ 38,640	$ 30,078
Accumulated Amortization	(14,492)	(12,511)
Net Carrying Amount	24,148	17,567
Total intangible assets
Gross Carrying Amount	38,640	30,116
Accumulated Amortization	(14,492)	(12,511)
Net Carrying Amount	24,148	17,605	[1]
Trademarks/tradenames/licenses
Intangible assets not subject to amortization:
Carrying Amount	0	38
Trademarks/tradenames/licenses
Intangible assets subject to amortization:
Gross Carrying Amount	13,893	12,470
Accumulated Amortization	(2,587)	(1,966)
Net Carrying Amount	$ 11,306	10,504
Weighted- Average Amortization Period (Years)	11 years
Total intangible assets
Accumulated Amortization	$ (2,587)	(1,966)
Customer relationships/non-compete agreements
Intangible assets subject to amortization:
Gross Carrying Amount	23,975	16,836
Accumulated Amortization	(11,133)	(9,773)
Net Carrying Amount	$ 12,842	7,063
Weighted- Average Amortization Period (Years)	7 years
Total intangible assets
Accumulated Amortization	$ (11,133)	(9,773)
Developed software and technology
Intangible assets subject to amortization:
Gross Carrying Amount	772	772
Accumulated Amortization	(772)	(772)
Net Carrying Amount	$ 0	0
Weighted- Average Amortization Period (Years)	5 years
Total intangible assets
Accumulated Amortization	$ (772)	$ (772)

[1] The condensed consolidated balance sheet as of September 30, 2015 has been prepared using information from the audited financial statements at that date.