CONSOLIDATED STATEMENTS OF COMPREHENSINVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended										6 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Mar. 31, 2011	Mar. 31, 2010	Jun. 30, 2011	Jun. 30, 2010	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Net income (loss)	$ (259)	$ 15,614	$ 46,201	$ 11,609	$ (3,651)	$ 13,406	$ (598)	$ 10,452	$ (6,590)	$ (1,847)	$ 588	$ 9,854	$ (1,259)	$ 23,260	$ (7,849)	$ 87,804	$ 19,609	$ (16,675)
Current period changes for investment securities available- for- sale																17	376
Pension and other postretirement benefit plans, adjustment, net of tax																(74)	(463)
Foreign currency translation gain (loss)																0	368
Other comprehensive income (loss)																19,441	(12,203)	2,728
Comprehensive income (loss)																107,245	7,406	(13,947)
Comprehensive (income) loss attributable to noncontrolling interests																(81,595)	(21,739)	3,249
Comprehensive income (loss) attributable to common shareholders																25,650	(14,333)	(10,698)
RAI [Member]
Unrealized gain (loss) on investment securities available-for-sale, net of tax of $(17), $(326) and $1,481																(28)	(528)	2,160
Less: reclassification for losses realized, net of tax of $28, $566 and $568																45	904	870
Current period changes for investment securities available- for- sale																17	376	3,030
Minimum pension liability adjustments, net of tax of $(221), $(432) and $(223)																(289)	(632)	(257)
Less: reclassification for losses realized, net of tax of $164 ,$129 and $116																215	169	147
Pension and other postretirement benefit plans, adjustment, net of tax																(74)	(463)	(110)
Unrealized gain (loss) on hedging contracts, net of tax of $13, $(58) and $109																(6)	(75)	192
Deconsolidation of LEAF- unrealized loss on hedging contracts, net of tax of $174																255	0	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax																249	(75)	192
Foreign currency translation gain (loss)																0	368	(384)
Other comprehensive income (loss)																192	206	2,728
RSO [Member]
Unrealized gain (loss) on investment securities available-for-sale, net of tax of $(17), $(326) and $1,481																18,770	(13,798)	0
Less: reclassification for losses realized, net of tax of $28, $566 and $568																1,728	1,080	0
Unrealized gain (loss) on hedging contracts, net of tax of $13, $(58) and $109																(1,476)	82	0
Reclassification adjustments associated with unrealized losses from interest rate hedges included in net income																227	227	0
Other comprehensive income (loss)																$ 19,249	$ (12,409)	$ 0