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Accumulated Other Comprehensive Income
 12 Months Ended
Sep. 30, 2018
Equity [Abstract]  
Accumulated Other Comprehensive Income
ACCUMULATED OTHER COMPREHENSIVE INCOME
Other comprehensive income (loss) principally reflects losses on IRPAs qualifying as cash flow hedges and actuarial gains and losses on postretirement benefit plans, net of reclassifications to net income.
Changes in AOCI, net of tax, during Fiscal 2018, Fiscal 2017 and Fiscal 2016 are as follows:
 
Postretirement
Benefit Plans
 
Derivative
Instruments
 
Total
AOCI - September 30, 2015
$
(9,276
)
 
$
(4,410
)
 
$
(13,686
)
Reclassifications of benefit plans actuarial losses and net prior service benefits
639

 
—

 
639

Reclassifications of net losses on IRPAs
—

 
1,568

 
1,568

Net losses on IRPAs
—

 
(16,942
)
 
(16,942
)
Benefit plans, principally actuarial losses
(3,197
)
 
—

 
(3,197
)
AOCI - September 30, 2016
$
(11,834
)
 
$
(19,784
)
 
$
(31,618
)
Reclassifications of benefit plans actuarial losses and net prior service benefits
956

 
—

 
956

Reclassifications of net losses on IRPAs
—

 
1,988

 
1,988

Benefit plans, principally actuarial gains
1,883

 
—

 
1,883

AOCI - September 30, 2017
$
(8,995
)
 
$
(17,796
)
 
$
(26,791
)
Reclassifications of benefit plans actuarial losses and net prior service benefits
872

 
—

 
872

Reclassifications of net losses on IRPAs
—

 
2,367

 
2,367

Net gains on interest rate swaps
—

 
20

 
20

Benefit plans, principally actuarial gains
3,203

 
—

 
3,203

AOCI - September 30, 2018
$
(4,920
)
 
$
(15,409
)
 
$
(20,329
)


Reclassifications of net losses on IRPAs are reflected in “Interest expense” on the Consolidated Statements of Income.