SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Summary of Gas in Storage

The following table summarizes gas in storage, at average cost by segment as of:

	June 30, 2019				September 30, 2018
($ in thousands)	Gas in Storage			Bcf	Gas in Storage			Bcf
Energy Services		$	59,354	26.3		$	90,166	34.1
Natural Gas Distribution		73,281		16.6		94,467		24.9
Total		$	132,635	42.9		$	184,633	59.0

Disposal Groups, Including Discontinued Operations

The major classes of assets and liabilities included within the disposal group as held for sale were as follows:

(Thousands)	September 30, 2018			Assets reclassified as held for sale		Assets Sold			Other adjustments (1)			June 30, 2019
Assets held for sale:
Nonutility plant and equipment - wind equipment, at cost	$	224,356		$	—	$	(224,356	)	$	—		$	—
Nonutility plant and equipment - accumulated depreciation, wind equipment	(18,501		)	—		18,501			—			—
Prepaid and other current assets	789			1,747		(1,541		)	(995		)	—
Other noncurrent assets	261			—		(261		)	—			—
	$	206,905		$	1,747	$	(207,657	)	$	(995	)	$	—
Liabilities held for sale:
Accounts payable and other	$	186		$	—	$	(186	)	$	—		$	—
Asset retirement obligation	3,996			—		(3,996		)	—			—
	$	4,182		$	—	$	(4,182	)	$	—		$	—

(1) Activity relates to amortization of prepaid and other current assets.

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, 2019 and 2018:

(Thousands)	Investments in Equity Securities			Postemployment Benefit Obligation				Total
Balance at March 31, 2019	$	—		$	(15,517	)		$	(15,517	)
Other comprehensive loss (income), 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	)
Balance at March 31, 2018	$	—		$	(13,788	)		$	(13,788	)
Other comprehensive (loss) income, net of tax
Other comprehensive (loss),before reclassifications, net of tax of $854, $0, $854	(2,364		)	—				(2,364		)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(104), $(104)	—			272			(1)	272
Net current-period other comprehensive (loss) income, net of tax of $854, $(104), $750	(2,364		)	272				(2,092		)
Balance at June 30, 2018	$	(2,364	)	$	(13,516	)		$	(15,880	)

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, 2019 and 2018:

(Thousands)	Investments in Equity Securities				Postemployment Benefit Obligation				Total
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	)
Balance at September 30, 2017	$	11,044			$	(14,300	)		$	(3,256	)
Other comprehensive (loss) income, net of tax
Other comprehensive (loss),before reclassifications, net of tax of $9,071, $0, $9,071	(25,055		)		—				(25,055		)
Amounts reclassified from accumulated other comprehensive income, net of tax of $(858), $(344), $(1,202)	11,647				784			(1)	12,431
Net current-period other comprehensive (loss) income, net of tax of $8,213, $(344), $7,869	(13,408		)		784				(12,624		)
Balance at June 30, 2018	$	(2,364	)		$	(13,516	)		$	(15,880	)

(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. See Note 2. Summary of Significant Accounting Policies - Recently Adopted Updates to the Accounting Standards Codification section for more details.

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

Accordingly, the following amounts on the Unaudited Condensed Consolidated Statement of Operations for the three and nine months ended June 30, 2019, have been adjusted:

(Thousands)	As Previously Reported			Effect of Change			As Adjusted
Three Months Ended
Statements of Operations
Operation and maintenance	$	69,447		$	(951	)	$	68,496
Total operating expenses	$	581,101		$	(951	)	$	580,150
Operating income	$	(37,666	)	$	951		$	(36,715	)
Other income (expense), net	$	2,682		$	(951	)	$	1,731
Nine Months Ended
Statements of Operations
Operation and maintenance	$	182,307		$	(2,854	)	$	179,453
Total operating expenses	$	2,052,412		$	(2,854	)	$	2,049,558
Operating income	$	215,371		$	2,854		$	218,225
Other income (expense), net	$	11,589		$	(2,854	)	$	8,735

Accordingly, 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, 2019		September 30, 2018		June 30, 2018		September 30, 2017
Balance Sheet
Cash and cash equivalents	$	26,297	$	1,458	$	1,070	$	2,226
Restricted cash in other noncurrent assets	391		252		295		243
Statements of Cash Flow
Cash, cash equivalents and restricted cash in the statement of cash flows	$	26,688	$	1,710	$	1,365	$	2,469