BUSINESS COMBINATIONS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		0 Months Ended	1 Months Ended
	Sep. 30, 2011 Liberty Savings Bank FSB [Member]	Sep. 23, 2011 Liberty Savings Bank FSB [Member] branches	Dec. 02, 2011 Flagstar Bank FSB [Member]	Aug. 31, 2011 Flagstar Bank FSB [Member] branches
Business Acquisition [Line Items]
Number of branches acquired		16		22
Name of acquiree	Liberty Savings Bank, FSB			Flagstar Bank, FSB
Performing loans assumed		$ 126.5
Deposits assumed		341.9		464.7
Fixed assets acquired		3.8	6.6
Premium paid on deposits of acquired bank		22.4	22.5
Goodwill recorded for acquisition	$ 17.1		$ 26.1