Quarterly report pursuant to Section 13 or 15(d)

Pension and Other Postretirement Benefit Plans (Details)

v2.4.0.8
Pension and Other Postretirement Benefit Plans (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Pension [Member]
       
Net periodic benefit cost [Abstract]        
Service cost $ 1,582 $ 1,685 $ 4,746 $ 5,055
Interest cost 2,213 1,913 6,639 5,739
Expected return on plan assets (2,396) (2,243) (7,188) (6,729)
Amortization [Abstract]        
Prior service cost (52) (52) (156) (156)
Net actuarial loss (gain) 991 1,806 2,973 5,418
Net benefit cost 2,338 3,109 7,014 9,327
Other Postretirement [Member]
       
Net periodic benefit cost [Abstract]        
Service cost 109 199 327 597
Interest cost 230 282 690 846
Expected return on plan assets 0 0 0 0
Amortization [Abstract]        
Prior service cost (23) (68) (66) (204)
Net actuarial loss (gain) (49) 110 (147) 330
Net benefit cost 267 523 804 1,569
Benefit plan contributions [Abstract]        
Other postretirement plan     709  
Additional contributions expected in fiscal 2014     217  
Supplemental Retirement Plan [Member]
       
Benefit plan contributions [Abstract]        
Supplemental retirement plan     543  
Additional contributions expected in fiscal 2014     $ 180