Pension Plan (Details) - Pension plan assets by level within the fair value hierarchy $ in Thousands	Sep. 30, 2015 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total	$ 7,702
Equity And Index Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total	5,197
Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total	2,505
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total	7,702
Fair Value, Inputs, Level 1 [Member] | Equity And Index Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total	5,197
Fair Value, Inputs, Level 1 [Member] | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total	$ 2,505
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total
Fair Value, Inputs, Level 2 [Member] | Equity And Index Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total
Fair Value, Inputs, Level 3 [Member] | Equity And Index Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Pension plan assets, Total