COMPREHENSIVE INCOME (LOSS) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Jun. 30, 2012		Jun. 30, 2011	Jun. 30, 2012		Jun. 30, 2011	Jun. 30, 2012 Investment Funds Sponsored By Leaf Financial Inc [Member]	Sep. 30, 2011 Investment Funds Sponsored By Leaf Financial Inc [Member]	Jun. 30, 2012 LEAF [Member]	Sep. 30, 2011 LEAF [Member]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss)	$ 30,280		$ 92	$ 28,496		$ (5,083)
Other comprehensive (loss) income:
Unrealized (loss) gain on investment securities available-for-sale, net of tax of (11), $(273), $327 and $(378)	(17)		(378)	518		(551)
Less: reclassification for realized losses, net of tax of $0, $2, $28 and $566	0		(2)	46		904
Sub total, net of tax	(17)		(380)	564		353
Minimum pension liability adjustment, net of tax of $0, 30, $0 and $30	0		(30)	0		(30)
Less: reclassification for realized losses, net of tax of $36, $31, $107 and $96	46		43	140		127
Unrealized gain (loss) on hedging contracts, net of tax of $5, $(66), $176 and $38	7		(90)	234		53
Foreign currency translation gain recognized in earnings	0		0	0		368
Comprehensive income (loss)	30,316		(365)	29,434		(4,212)
Less: comprehensive income attributable to noncontrolling interests	(45)		(482)	(433)		(165)
Comprehensive income (loss) attributable to common shareholders	30,271		(847)	29,001		(4,377)
Tax on unrealized (loss) gain on investment securities available-for-sale	(11)		(273)	327		(378)
Tax on reclassification for realized losses	0		2	28		566
Tax on minimum pension liability adjustment	0		30	0		30
Tax on reclassification for realized losses	36		31	107		96
Tax on unrealized (loss) gain on hedging contracts	5		(66)	176		38
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Investment Securities Available-for-Sale balance, beginning of the year				(11,421)
Cash Flow Hedges balance, beginning of the year				(222)	[1]		15,000	41,000	22,000	181,000
SERP Pension Liability balance, beginning of the year				(2,970)
Total balance, beginning of the year				(14,613)
Current period changes for investment securities available- for- sale	(17)		(380)	564		353
Current period changes for cash flow hedges				185	[1]
Current period changes for SERP Pension liability				140
Total current period changes				889
Investment Securities Available-for-Sale balance, end of period	(10,857)			(10,857)
Cash Flow Hedges balance, end of period	(37)	[1]		(37)	[1]		15,000	41,000	22,000	181,000
SERP Pension Liability balance, end of period	(2,830)			(2,830)
Total balance, end of period	(13,724)			(13,724)
Tax portion of investment securities available for sale in accumulated other comprehensive income				(7,147)
Tax portion of cash flow hedges in accumulated other comprehensive income				(202)			14,000	28,000
Tax portion of SERP pension liability in accumulated other comprehensive income				(2,271)
Tax portion of investment securities available for sale in accumulated other comprehensive income	(6,792)			(6,792)
Tax portion of cash flow hedges in accumulated other comprehensive income	(26)			(26)			14,000	28,000
Tax portion of SERP pension liability in accumulated other comprehensive income	(2,163)			(2,163)
Derivative Instruments, Gain (Loss) [Line Items]
Net unrealized loss	(37)	[1]		(37)	[1]		15,000	41,000	22,000	181,000
Tax portion of cash flow hedges in accumulated other comprehensive income				(202)			14,000	28,000
Amount Of Tax Provision Benefit And Noncontrolling Interests									$ 12,000	$ 223,000

[1] Included in accumulated other comprehensive loss as of June 30, 2012 and September 30, 2011 is a net unrealized losses of $15,000 (net of tax benefit of $14,000) and $41,000 (net of tax benefit of $28,000), respectively, related to hedging instruments held by investment funds sponsored by LEAF Financial, in which the Company owns an equity interest. In addition, at September 30, 2011, the Company had a net unrealized loss of $181,000 (net of tax benefit and noncontrolling interests of $223,000) included in Accumulated Other Comprehensive Loss for hedging activity of LEAF. As of June 30, 2012, due to the November 2011 deconsolidation of LEAF, the Company owns an equity interest in LEAF and has included in Accumulated Other Comprehensive Loss its percentage of LEAF's hedging activity of $22,000 (net of tax benefit of $12,000). The Company has no other hedging activity as of June 30, 2012.