Summary of Unaudited Quarterly Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Total revenues	$ 7,770	$ 12,792	$ 11,213	$ 12,671	$ 8,903	$ 13,718	$ 6,682	$ 11,103	$ 44,446	$ 40,406	$ 932
Non-interest expenses	22,759	21,626	23,402	26,208	23,629	25,123	23,720	30,681	93,995	103,153	92,830
Gain from deconsolidation of trusts						9,156	358			9,514
Other income	946	421	281		280		281	1,124	702	1,685	8,112
Income tax expense	1,150	376	375	395	(466)	(5,197)	(12,631)	339	2,296	(17,955)	208
(Loss) income from continuing operations					(13,980)	2,948	(3,768)	(18,793)	(50,197)	(33,593)	(83,994)
Discontinued operations, net of taxes					40	6,910	1,198,036	(69,165)		1,135,821	(137,567)
Net (loss) income	$ (15,193)	$ (8,789)	$ (12,283)	$ (13,932)	$ (13,940)	$ 9,858	$ 1,194,268	$ (87,958)	$ (50,197)	$ 1,102,228	$ (221,561)
Net (loss) income per basic common share:
From continuing operations					$ (0.14)	$ 0.03	$ (0.03)	$ (0.19)	$ (0.47)	$ (0.30)	$ (0.83)
From discontinued operations						$ 0.06	$ 10.85	$ (0.68)		$ 10.28	$ (1.37)
Total basic net (loss) income per common share	$ (0.14)	$ (0.08)	$ (0.12)	$ (0.14)	$ (0.14)	$ 0.09	$ 10.82	$ (0.87)	$ (0.47)	$ 9.98	$ (2.20)
Net loss per basic and diluted common share:
Basic	$ (0.14)	$ (0.08)	$ (0.12)	$ (0.14)	$ (0.14)	$ 0.09	$ 10.82	$ (0.87)	$ (0.47)	$ 9.98	$ (2.20)
Diluted	$ (0.14)	$ (0.08)	$ (0.12)	$ (0.14)	$ (0.14)	$ 0.09	$ 10.82	$ (0.87)	$ (0.47)	$ 9.96	$ (2.20)
Net (loss) income per diluted common share:
From continuing operations					$ (0.14)	$ 0.03	$ (0.03)	$ (0.19)	$ (0.47)	$ (0.30)	$ (0.83)
From discontinued operations						$ 0.06	$ 10.85	$ (0.68)		$ 10.26	$ (1.37)
Total diluted net (loss) income per common share	$ (0.14)	$ (0.08)	$ (0.12)	$ (0.14)	$ (0.14)	$ 0.09	$ 10.82	$ (0.87)	$ (0.47)	$ 9.96	$ (2.20)