Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT PLANS (Details)

v3.2.0.727
PENSION AND OTHER POSTRETIREMENT PLANS (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Change in plan assets [Roll Forward]      
Fair value, end of year $ 131,753 $ 123,713  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 131,753 123,713  
Fair value of plan assets [Abstract]      
Fair value of plan assets 131,753 123,713  
Level 1 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 106,940 93,964  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 106,940 93,964  
Fair value of plan assets [Abstract]      
Fair value of plan assets 106,940 93,964  
Level 2 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 10,483 10,807  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 10,483 10,807  
Fair value of plan assets [Abstract]      
Fair value of plan assets 10,483 10,807  
Level 3 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 14,330 18,942  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 14,330 18,942  
Fair value of plan assets [Abstract]      
Fair value of plan assets 14,330 18,942  
Equity Securities - Stocks [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 35,310 36,127  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 35,310 36,127  
Fair value of plan assets [Abstract]      
Fair value of plan assets 35,310 36,127  
Equity Securities - Stocks [Member] | Level 1 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 35,310 36,127  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 35,310 36,127  
Fair value of plan assets [Abstract]      
Fair value of plan assets 35,310 36,127  
Equity Securities - Stocks [Member] | Level 2 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 0 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 0 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 0  
Equity Securities - Stocks [Member] | Level 3 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 0 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 0 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 0  
Equity Securities - Mutual Funds [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 31,674 31,827  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 31,674 31,827  
Fair value of plan assets [Abstract]      
Fair value of plan assets 31,674 31,827  
Equity Securities - Mutual Funds [Member] | Level 1 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 30,694 30,507  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 30,694 30,507  
Fair value of plan assets [Abstract]      
Fair value of plan assets 30,694 30,507  
Equity Securities - Mutual Funds [Member] | Level 2 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 980 1,320  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 980 1,320  
Fair value of plan assets [Abstract]      
Fair value of plan assets 980 1,320  
Equity Securities - Mutual Funds [Member] | Level 3 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 0 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 0 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 0  
Fixed Income Securities [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 29,545 27,399  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 29,545 27,399  
Fair value of plan assets [Abstract]      
Fair value of plan assets 29,545 27,399  
Fixed Income Securities [Member] | Level 1 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 20,042 17,912  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 20,042 17,912  
Fair value of plan assets [Abstract]      
Fair value of plan assets 20,042 17,912  
Fixed Income Securities [Member] | Level 2 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 9,503 9,487  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 9,503 9,487  
Fair value of plan assets [Abstract]      
Fair value of plan assets 9,503 9,487  
Fixed Income Securities [Member] | Level 3 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 0 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 0 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 0  
Cash and Cash Equivalents [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 14,796 9,418  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 14,796 9,418  
Fair value of plan assets [Abstract]      
Fair value of plan assets 14,796 9,418  
Cash and Cash Equivalents [Member] | Level 1 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 14,796 9,418  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 14,796 9,418  
Fair value of plan assets [Abstract]      
Fair value of plan assets 14,796 9,418  
Cash and Cash Equivalents [Member] | Level 2 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 0 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 0 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 0  
Cash and Cash Equivalents [Member] | Level 3 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 0 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 0 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 0  
Other Investments [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 20,428 18,942  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 20,428 18,942  
Fair value of plan assets [Abstract]      
Fair value of plan assets 20,428 18,942  
Other Investments [Member] | Level 1 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 6,098 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 6,098 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 6,098 0  
Other Investments [Member] | Level 2 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 0 0  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 0 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 0  
Other Investments [Member] | Level 3 [Member]      
Change in plan assets [Roll Forward]      
Fair value, end of year 14,330 18,942  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 14,330 18,942  
Fair value of plan assets [Abstract]      
Fair value of plan assets 14,330 18,942  
Principal Retirement Plan [Member]      
Contributions during fiscal 2013:      
Pension contributions 3,000    
Other postretirement contributions 0    
Supplemental Retirement Plan [Member]      
Contributions during fiscal 2013:      
Pension contributions 725    
Other postretirement contributions 0    
Pension Plans [Member]      
Change in benefit obligation [Roll Forward]      
Benefit obligation, beginning of year 186,077 195,860  
Acquisitions 0 9,437  
Service cost 6,150 7,160 $ 5,852
Interest cost 8,927 8,024 7,842
Actuarial (gain) loss 18,412 (27,179)  
Exchange (gain) loss (703) 0  
Benefit payments (7,827) (7,225)  
Benefit obligation, end of year 211,036 186,077  
Change in plan assets [Roll Forward]      
Fair value, beginning of year 123,713 116,577  
Acquisitions 0 9,437  
Actual return 10,792 10,838  
Benefit payments (7,827) (7,225)  
Employer contributions 5,075 3,523  
Fair value, end of year 131,753 123,713  
Funded status (79,283) (62,363)  
Unrecognized actuarial loss (gain) 69,153 56,148  
Unrecognized prior service cost (1,411) (1,935)  
Net amount recognized (11,541) (8,150)  
Amounts recognized in the consolidated balance sheet:      
Current liability (733) (721)  
Noncurrent benefit liability (78,550) (61,642)  
Accumulated other comprehensive loss 67,742 54,213  
Net amount recognized (11,541) (8,150)  
Amounts recognized in accumulated other comprehensive loss:      
Net actuarial loss (income) 69,153 56,148  
Prior service cost (1,411) (1,935)  
Net amount recognized 67,742 54,213  
Accumulated benefit obligations in excess of plan assets [Abstract]      
Accumulated benefit obligation 180,265 156,661  
Projected benefit obligation 211,036 186,077  
Net periodic benefit cost [Abstract]      
Service cost 6,150 7,160 5,852
Interest cost 8,927 8,024 7,842
Expected return on plan assets (9,666) (9,071) (7,836)
Amortization:      
Prior service cost (206) (206) (45)
Net actuarial loss 3,927 7,903 6,814
Net benefit cost 9,132 $ 13,810 $ 12,627
Amounts of AOCI expected to be recognized in net periodic benefit costs [Abstract]      
Net actuarial loss 6,258    
Prior service cost $ (180)    
Weighted-average assumptions [Abstract]      
Discount rate (in hundredths) 4.25% 5.00% 4.00%
Return on plan assets (in hundredths) 7.75% 8.00% 8.00%
Compensation increase (in hundredths) 3.50% 3.50% 3.50%
Weighted average asset allocation [Abstract]      
Equity securities $ 66,984 $ 67,954  
Fixed income, cash and cash equivalents 44,341 36,817  
Other investments 20,428 18,942  
Fair value of plan assets $ 131,753 $ 123,713  
Target allocation [Abstract]      
Equity securities (in hundredths) 55.00%    
Fixed income, cash and cash equivalents (in hundredths) 30.00%    
Other investments (in hundredths) 15.00%    
Total target asset allocation (in hundredths) 100.00%    
Cash included in plan assets (in hundredths) 2.00% 2.00%  
Fair value of plan assets [Abstract]      
Fair value of plan assets $ 131,753 $ 123,713  
Benefit payments expected to be paid [Abstract]      
2015 7,747    
2016 8,116    
2017 8,550    
2018 9,039    
2019 9,611    
2020-2024 57,292    
Total benefits expected to be paid 100,355    
Effect of one-percentage point change in assumed health care cost trend rates [Abstract]      
Withdrawal liability 30,423    
Expected annual payments of multi-employer pension obligation 1,973    
Pension Plans [Member] | Other Investments [Member] | Level 3 [Member]      
Change in benefit obligation [Roll Forward]      
Acquisitions 0 0  
Change in plan assets [Roll Forward]      
Fair value, beginning of year 18,942 18,173  
Acquisitions 0 0  
Dispositions (5,439) 0  
Realized Gains (Losses) 1,118 48  
Unrealized Gains (291) 721  
Fair value, end of year 14,330 18,942  
Weighted average asset allocation [Abstract]      
Fair value of plan assets 14,330 18,942  
Fair value of plan assets [Abstract]      
Fair value of plan assets 14,330 18,942  
Other Postretirement Plans [Member]      
Change in benefit obligation [Roll Forward]      
Benefit obligation, beginning of year 18,881 28,831  
Acquisitions 0 0  
Service cost 436 796 $ 730
Interest cost 919 1,129 1,283
Actuarial (gain) loss 1,929 (11,124)  
Exchange (gain) loss 0 0  
Benefit payments (807) (751)  
Benefit obligation, end of year 21,358 18,881  
Change in plan assets [Roll Forward]      
Fair value, beginning of year 0 0  
Acquisitions 0 0  
Actual return 0 0  
Benefit payments (807) (751)  
Employer contributions 807 751  
Fair value, end of year 0 0  
Funded status (21,358) (18,881)  
Unrecognized actuarial loss (gain) (987) (3,001)  
Unrecognized prior service cost (1,306) (1,502)  
Net amount recognized (23,651) (23,384)  
Amounts recognized in the consolidated balance sheet:      
Current liability (1,007) (925)  
Noncurrent benefit liability (20,351) (17,956)  
Accumulated other comprehensive loss (2,293) (4,503)  
Net amount recognized (23,651) (23,384)  
Amounts recognized in accumulated other comprehensive loss:      
Net actuarial loss (income) (987) (3,001)  
Prior service cost (1,306) (1,502)  
Net amount recognized (2,293) (4,503)  
Net periodic benefit cost [Abstract]      
Service cost 436 796 730
Interest cost 919 1,129 1,283
Expected return on plan assets 0 0 0
Amortization:      
Prior service cost (195) (272) (451)
Net actuarial loss (87) 439 535
Net benefit cost 1,073 $ 2,092 $ 2,097
Contributions during fiscal 2013:      
Pension contributions 0    
Other postretirement contributions 807    
Amounts of AOCI expected to be recognized in net periodic benefit costs [Abstract]      
Net actuarial loss 0    
Prior service cost $ (195)    
Weighted-average assumptions [Abstract]      
Discount rate (in hundredths) 4.25% 5.00% 4.00%
Return on plan assets (in hundredths) 0.00% 0.00% 0.00%
Compensation increase (in hundredths) 0.00% 0.00% 0.00%
Weighted average asset allocation [Abstract]      
Fair value of plan assets $ 0 $ 0  
Fair value of plan assets [Abstract]      
Fair value of plan assets 0 $ 0  
Benefit payments expected to be paid [Abstract]      
2015 1,007    
2016 1,098    
2017 1,205    
2018 1,282    
2019 1,347    
2020-2024 6,847    
Total benefits expected to be paid $ 12,786    
Assumed health care cost trend rates [Abstract]      
Per capita cost of health care benefits assumed for next fiscal year (in hundredths) 7.00%    
Ultimate health care cost trend rate (in hundredths) 4.00%    
Year that rate reaches ultimate trend rate 2069    
Effect of one-percentage point change in assumed health care cost trend rates [Abstract]      
Effect of one percentage point increase on accumulated postretirement benefit obligation $ 1,053    
Effect of one percentage point increase on service and interest cost components 71    
Effect of one percentage point decrease on accumulated postretirement benefit obligation 926    
Effect of one percentage point decrease on service and interest cost components 62    
Other Retirement Plans [Member]      
Contributions during fiscal 2013:      
Pension contributions $ 1,350