Accumulated Other Comprehensive Income

9 Months Ended

Jun. 30, 2016

Equity [Abstract]

Accumulated Other Comprehensive Income

Note 11 — Accumulated Other Comprehensive Income

The tables below present changes in AOCI, net of tax, during the three and nine months ended June 30, 2016 and 2015:

	Postretirement Benefit Plans			Derivative Instruments			Total
Three Months Ended June 30, 2016
AOCI - March 31, 2016	$	(8,956	)	$	(20,607	)	$	(29,563	)
Reclassifications of benefit plan actuarial losses and prior service cost	160			—			160
Reclassifications of net losses on IRPAs	—			357			357
AOCI - June 30, 2016	$	(8,796	)	$	(20,250	)	$	(29,046	)
Three Months Ended June 30, 2015
AOCI - March 31, 2015	$	(6,051	)	$	(1,087	)	$	(7,138	)
Reclassifications of benefit plan actuarial losses and prior service cost	128			—			128
Reclassifications of net losses on IRPAs	—			392			392
AOCI - June 30, 2015	$	(5,923	)	$	(695	)	$	(6,618	)

	Postretirement Benefit Plans			Derivative Instruments			Total
Nine Months Ended June 30, 2016
AOCI - September 30, 2015	$	(9,276	)	$	(4,410	)	$	(13,686	)
Net losses on IRPAs	—			(16,943		)	(16,943		)
Reclassifications of benefit plan actuarial losses and prior service costs	480			—			480
Reclassifications of net losses on IRPAs	—			1,103			1,103
AOCI - June 30, 2016	$	(8,796	)	$	(20,250	)	$	(29,046	)
Nine Months Ended June 30, 2015
AOCI - September 30, 2014	$	(6,311	)	$	(1,870	)	$	(8,181	)
Reclassifications of benefit plan actuarial losses and prior service costs	388			—			388
Reclassifications of net losses on IRPAs	—			1,175			1,175
AOCI - June 30, 2015	$	(5,923	)	$	(695	)	$	(6,618	)