Fair Value of Financial Instruments (Details) (Fair Value Inputs Level2 [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Market Approach Valuation Technique [Member] | Junior Subordinated Debt [Member]
Financial Instruments Not Measured at Fair Value
Market interest rate (as a percent)	6.37%	7.53%
Market Approach Valuation Technique [Member] | Mortgages [Member] | Minimum [Member]
Financial Instruments Not Measured at Fair Value
Market interest rate (as a percent)	2.05%	2.42%
Market Approach Valuation Technique [Member] | Mortgages [Member] | Maximum [Member]
Financial Instruments Not Measured at Fair Value
Market interest rate (as a percent)	9.09%	9.64%
Estimate of Fair Value Measurement [Member] | Junior Subordinated Debt [Member]
Financial Instruments Not Measured at Fair Value
Estimated fair value lower than carrying value	21,400	24,300
Estimate of Fair Value Measurement [Member] | Mortgages [Member]
Financial Instruments Not Measured at Fair Value
Estimated fair value lower than carrying value	729	17,800