Loans and Credit Quality (Details 8) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
REO held for sale
Balance as of beginning of period	$ 70,050	$ 136,277	$ 92,265	$ 101,401
Acquired in business combination		2,014		2,014
Transfers from loans held for investment and other assets	8,840	23,765	13,589	78,331
Fair value adjustments	(11,080)	(11,186)	(13,124)	(27,234)
Transfers from REO held for use				2,850
Real estate sold	(20,798)	(11,920)	(45,718)	(18,412)
Balance as of end of period	47,012	138,950	47,012	138,950
Provisions for losses and gains and losses on sales on other foreclosed assets
(Recovery) provision for losses on other foreclosed assets	(398)	23,699	7,405	38,869
(Losses) gains on sales of other foreclosed	$ (32)		$ (1,647)