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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 9 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]  
Summary of Gas in Storage
The following table summarizes gas in storage, at average cost by segment as of:
 
June 30, 2020
September 30, 2019
($ in thousands)
Gas in Storage
 
Bcf
Gas in Storage
 
Bcf
Energy Services
 
$
50,400

33.1

 
$
52,390

25.6

Natural Gas Distribution
 
73,501

17.5

 
117,413

27.0

Midstream
 
61

—

 
—

—

Total
 
$
123,962

50.6

 
$
169,803

52.6
Schedule of Cash and Cash Equivalents The following table provides a reconciliation of cash and cash equivalents and restricted cash reported in the Unaudited Condensed Consolidated Balance Sheets to the total amounts in the Unaudited Condensed Consolidated Statements of Cash Flows as follows:
(Thousands)
June 30,
2020
September 30,
2019
June 30,
2019
September 30,
2018
Balance Sheet
 
 
 
 
Cash and cash equivalents
$
42,821

$
2,676

$
26,297

$
1,458

Restricted cash in other noncurrent assets
2,424

1,387

391

252

Statements of Cash Flow
 
 
 
 
Cash, cash equivalents and restricted cash in the statement of cash flows
$
45,245

$
4,063

$
26,688

$
1,710
Schedule of Restricted Cash The following table provides a reconciliation of cash and cash equivalents and restricted cash reported in the Unaudited Condensed Consolidated Balance Sheets to the total amounts in the Unaudited Condensed Consolidated Statements of Cash Flows as follows:
(Thousands)
June 30,
2020
September 30,
2019
June 30,
2019
September 30,
2018
Balance Sheet
 
 
 
 
Cash and cash equivalents
$
42,821

$
2,676

$
26,297

$
1,458

Restricted cash in other noncurrent assets
2,424

1,387

391

252

Statements of Cash Flow
 
 
 
 
Cash, cash equivalents and restricted cash in the statement of cash flows
$
45,245

$
4,063

$
26,688

$
1,710
Schedule of Accumulated Other Comprehensive Income (Loss)
The following table presents the changes in the components of accumulated other comprehensive income (loss), net of related tax effects during the three months ended June 30, 2020 and 2019:
(Thousands)
Investments in Equity Securities
Cash Flow Hedges
Postemployment Benefit Obligation
Total
Balance at March 31, 2020
$
—

 
$
(9,711
)
 
$
(24,928
)
 
$
(34,639
)
Other comprehensive income (loss), net of tax
 
 
 
 
 
 
 
Other comprehensive (loss) income, before reclassifications, net of tax of $0, $180, $0, $180
—

 
(626
)
 
—

 
(626
)
Amounts reclassified from accumulated other comprehensive loss, net of tax of $0, $0, $(191), $(191)
—

 
—

 
663

(1) 
663

Net current-period other comprehensive income, net of tax of $0, $180, $(191), $(11)
—

 
(626
)
 
663

 
37

Balance at June 30, 2020
$
—

 
$
(10,337
)
 
$
(24,265
)
 
$
(34,602
)
Balance at March 31, 2019
$
—

 
$
—

 
$
(15,517
)
 
$
(15,517
)
Other comprehensive income (loss), net of tax
 
 
 
 
 
 
 
Amounts reclassified from accumulated other comprehensive loss, net of tax of $0, $(118), $(118)
—

 
—

 
305

(1) 
305

Balance at June 30, 2019
$
—

 
$
—

 
$
(15,212
)
 
$
(15,212
)
(1)
Included in the computation of net periodic pension cost, a component of operations and maintenance expense on the Unaudited Condensed Consolidated Statements of Operations.

The following table presents the changes in the components of accumulated other comprehensive income (loss), net of related tax effects during the nine months ended June 30, 2020 and 2019:
(Thousands)
Investments in Equity Securities
Cash Flow Hedges
Postemployment Benefit Obligation
Total
Balance at September 30, 2019
$
—

 
$
—

 
$
(31,787
)
 
$
(31,787
)
Other comprehensive income (loss), net of tax
 
 
 
 
 
 
 
Other comprehensive (loss) income, before reclassifications, net of tax of $0, $2,961, $(1,681), $1,280
—

 
(10,337
)
 
5,378

 
(4,959
)
Amounts reclassified from accumulated other comprehensive loss, net of tax of $0, $0, $(480), $(480)
—

 
—

 
2,144

(1) 
2,144

Net current-period other comprehensive income, net of tax of $0, $2,961, $(2,161), $800
—

 
(10,337
)
 
7,522

 
(2,815
)
Balance at June 30, 2020
$
—

 
$
(10,337
)
 
$
(24,265
)
 
$
(34,602
)
Balance at September 30, 2018
$
3,446

 
$
—

 
$
(16,056
)
 
$
(12,610
)
Other comprehensive income (loss), net of tax
 
 
 
 
 
 
 
Amounts reclassified from accumulated other comprehensive income (loss), net of tax of $0, $(333), $(333)
—

 
—

 
844

(1) 
844

Reclassification to retained earnings
$
(3,446
)
(2) 


 
$
—

 
$
(3,446
)
Balance at June 30, 2019
$
—

 
$
—

 
$
(15,212
)
 
$
(15,212
)
(1)
Included in the computation of net periodic pension cost, a component of operations and maintenance expense on the Unaudited Condensed Consolidated Statements of Operations.
(2)
Due to the adoption of ASU No. 2016-01, an amendment to ASC 825, Financial Instruments.