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PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS Part 8 (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Sep. 30, 2012
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]    
Projected benefit obligation $ 503,818 $ 412,171
Accumulated benefit obligation 444,129 353,061
Fair value of plan assets, plans with benefit obligations in excess of plan assets 345,443 274,130
Fair value of plan assets, plans with accumulated benefit obligations in excess of plan assets $ 345,443 $ 274,130