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Employee Benefits Plans (Schedule of MSP Benefit Expense) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2010
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| MSP benefit expense charged to costs and expenses: | |||
| Service cost | $ 251 | $ 233 | $ 265 |
| Interest cost | 178 | 181 | 186 |
| Recognized actuarial loss (gain) | |||
| Recognized actuarial loss adjustment | 2 | 66 | 102 |
| Total | $ 431 | $ 480 | $ 553 |
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- Definition
Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change in benefit obligation or plan asset value from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of gains or losses recognized in net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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