Fair Value Measurements Assets Measured at Fair Value on a Nonrecurring Basis (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Reserve for unfunded commitments	$ 1,839	$ 1,227
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Net loans	0	0
Other Assets, Fair Value Disclosure	0	0
Reserve for unfunded commitments	0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member] | Other Assets [Member]
Other Finanical Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Net loans	0	0
Other Assets, Fair Value Disclosure	0	0
Reserve for unfunded commitments	0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member] | Other Assets [Member]
Other Finanical Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Net loans	219,526	457,678
Other Assets, Fair Value Disclosure	289,054	519,787
Reserve for unfunded commitments	1,839	1,227
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member] | Other Assets [Member]
Other Finanical Assets, Fair Value Disclosure	69,528	62,109
Fair Value, Measurements, Nonrecurring [Member] | Total [Member]
Net loans	219,526	457,678
Other Assets, Fair Value Disclosure	289,054	519,787
Reserve for unfunded commitments	1,839	1,227
Fair Value, Measurements, Nonrecurring [Member] | Total [Member] | Other Assets [Member]
Other Finanical Assets, Fair Value Disclosure	$ 69,528	$ 62,109