FINANCING RECEIVABLES (Allowance for Credit Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012		Dec. 31, 2011	Sep. 30, 2012
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Balance, beginning of year	$ 27,613		$ 10,935
Provision for credit losses	5,152		2,250
Charge-offs	(140)		(124)
Recoveries	3		25
Deconsolidation of LEAF			(482)
Balance, end of period	32,628		12,604
Ending balance, individually evaluated for impairment	32,560		12,575
Ending balance, collectively evaluated for impairment	68		29
Balance, end of period	32,628		12,604
Gross financing receivables related to the balance in the allowance for credit losses [Abstract]
Ending balance, individually evaluated for impairment	71,245			68,631
Ending balance, collectively evaluated for impairment	112			45
Balance, end of year	71,357			68,676
Receivables from Managed Entities [Member]
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Balance, beginning of year	27,580		10,490
Provision for credit losses	5,120		2,085
Charge-offs	(140)		0
Recoveries	0		0
Deconsolidation of LEAF			0
Balance, end of period	32,560		12,575
Ending balance, individually evaluated for impairment	32,560		12,575
Ending balance, collectively evaluated for impairment	0		0
Balance, end of period	32,560		12,575
Gross financing receivables related to the balance in the allowance for credit losses [Abstract]
Ending balance, individually evaluated for impairment	71,245			68,631
Ending balance, collectively evaluated for impairment	0			0
Balance, end of year	71,245	[1]		68,631	[2]
Leases and Loans [Member]
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Balance, beginning of year	0		430
Provision for credit losses	(3)		151
Charge-offs			(124)
Recoveries	3		25
Deconsolidation of LEAF			(482)
Balance, end of period	0		0
Ending balance, individually evaluated for impairment	0		0
Ending balance, collectively evaluated for impairment	0		0
Balance, end of period	0		0
Rent Receivables [Member]
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Balance, beginning of year	33		15
Provision for credit losses	35		14
Charge-offs	0		0
Recoveries	0		0
Deconsolidation of LEAF			0
Balance, end of period	68		29
Ending balance, individually evaluated for impairment	0		0
Ending balance, collectively evaluated for impairment	68		29
Balance, end of period	68		29
Gross financing receivables related to the balance in the allowance for credit losses [Abstract]
Ending balance, individually evaluated for impairment	0			0
Ending balance, collectively evaluated for impairment	112			45
Balance, end of year	$ 112			$ 45

[1] Receivables are presented gross of an allowance for credit losses of $29.6 million, $2.5 million and $457,000 related to the Company’s commercial finance, real estate and financial fund management investment entities, respectively. The remaining receivables from managed entities and related parties have no related allowance for credit losses.

[2] Receivables are presented gross of an allowance for credit losses of $25.1 million and $2.5 million related to the Company’s commercial finance and real estate investment entities, respectively. The remaining receivables from managed entities and related parties have no related allowance for credit losses.