EMPLOYEE BENEFIT PLANS (Tables)

12 Months Ended

Sep. 30, 2016

EMPLOYEE BENEFIT PLANS

Schedule of reconciliation of the changes in the pension benefit obligations, fair value of Pension Plan assets and statement of the funded status

	2016			2015
	(in thousands)
Accumulated Benefit Obligation	$	109,731		$	107,417
Changes in projected benefit obligations
Projected benefit obligation at beginning of year	$	107,417		$	111,108
Interest cost		4,266			4,584
Actuarial loss		15,051			2,741
Benefits paid		(17,003	)		(11,016	)
Projected benefit obligation at end of year	$	109,731		$	107,417
Change in plan assets
Fair value of plan assets at beginning of year	$	98,060		$	108,157
Actual return on plan assets		9,653			(1,324	)
Employer contribution		38			2,243
Benefits paid		(17,003	)		(11,016	)
Fair value of plan assets at end of year	$	90,748		$	98,060
Funded status of the plan at end of year	$	(18,983	)	$	(9,357	)

Schedule of amounts recognized in the Consolidated Balance Sheets

        The amounts recognized in the Consolidated Balance Sheets at September 30, 2016 and 2015 are as follows (in thousands):

Accrued liabilities	$	(45	)	$	(44	)
Noncurrent liabilities—other		(18,938	)		(9,313	)
Net amount recognized	$	(18,983	)	$	(9,357	)

Schedule of amounts recognized in Accumulated Other Comprehensive Income and not yet reflected in net periodic benefit cost

        The amounts recognized in Accumulated Other Comprehensive Income at September 30, 2016 and 2015, and not yet reflected in net periodic benefit cost, are as follows (in thousands):

Net actuarial loss $ (34,112 ) $ (30,144 )

Schedule of weighted average assumptions used for the pension calculations

	Years Ended September 30,
	2016			2015			2014
Discount rate for net periodic benefit costs		4.27	%		4.32	%		4.80	%
Discount rate for year-end obligations		3.64	%		4.27	%		4.32	%
Expected return on plan assets		5.89	%		6.26	%		6.61	%

Schedule of components of Net Periodic Benefit Cost

	Years Ended September 30,
	2016			2015			2014
	(in thousands)
Interest cost	$	4,266		$	4,584		$	4,763
Expected return on plan assets		(5,616	)		(6,855	)		(6,789	)
Recognized net actuarial loss		2,083			1,308			873
Settlement		4,964			2,873			1,376
Net pension expense	$	5,697		$	1,910		$	223

Schedule of expected benefits to be paid from pension plan

        The following table reflects the expected benefits to be paid from the Pension Plan in each of the next five fiscal years, and in the aggregate for the five years thereafter (in thousands).

Years Ended September 30,
2017	2018	2019	2020	2021	2022 - 2026	Total
$13,976	$5,859	$6,013	$7,094	$5,674	$33,078	$71,694

Schedule of target allocation and the asset allocation for the Pension Plan

	Target Allocation			Percentage of Plan Assets at September 30,
Asset Category	2017			2016			2015
U.S. equities		55	%		62	%		59	%
International equities		13			12			13
Fixed income		27			21			23
Real estate and other		5			5			5
Total		100	%		100	%		100	%

Schedule of fair value of Pension Plan assets, summarized by level within fair value hierarchy

	Fair Value as of September 30, 2016
	Total		Level 1		Level 2		Level 3
	(in thousands)
Short-term investments	$	467	$	467	$	—	$	—
Mutual funds:
Domestic stock funds		36,107		36,107		—		—
Bond funds		22,809		22,809		—		—
International stock funds		11,334		11,334		—		—
Total mutual funds		70,250		70,250		—		—
Domestic common stock		18,305		18,305		—		—
Foreign equity stock		1,549		1,549		—		—
Oil and gas properties		177		—		—		177
Total	$	90,748	$	90,571	$	—	$	177

	Fair Value as of September 30, 2015
	Total		Level 1		Level 2		Level 3
	(in thousands)
Short-term investments	$	2,248	$	2,248	$	—	$	—
Mutual funds:
Domestic stock funds		40,072		40,072		—		—
Bond funds		25,344		25,344		—		—
International stock funds		12,644		12,644		—		—
Total mutual funds		78,060		78,060		—		—
Domestic common stock		15,883		15,883		—		—
Foreign equity stock		1,482		1,482		—		—
Oil and gas properties		387		—		—		387
Total	$	98,060	$	97,673	$	—	$	387

Summary of changes in fair value of the Pension Plan's Level 3 assets

	Oil and Gas Properties
	Years Ended September 30,
	2016			2015
	(in thousands)
Balance, beginning of year	$	387		$	301
Unrealized gains (losses) relating to property still held at the reporting date		(210	)		86
Balance, end of year	$	177		$	387