Fair Value Measurements (Summary of Adjustments to Fair Value And Related Level Of Valuation Assumptions) (Details) (USD $) In Thousands	Sep. 30, 2011	Sep. 30, 2010
Significant Unobservable Inputs (Level 3) [Member]
Loans	$ 44,937	$ 48,858
Private equity investments		980
Mortgage servicing rights	896	962
Foreclosed assets	2,778	8,423
Long-lived assets	11,864	4,300
Fair value [Member]
Loans	44,937	48,858
Private equity investments		980
Mortgage servicing rights	896	962
Foreclosed assets	2,778	8,423
Long-lived assets	11,864	4,300
Total Gains (Losses) Recognized During the Nine Months Ended [Member]
Loans	(11,859)	(12,681)
Private equity investments		(100)
Mortgage servicing rights	(166)	(434)
Foreclosed assets	(592)	(3,016)
Long-lived assets	$ (3,168)	$ (969)