Pension Plans (Tables)

12 Months Ended

Sep. 30, 2017

Schedule of Available-for-sale Securities [Line Items]

Accounting For The Pension Plans

The following table presents the actuarial assumptions used in accounting for the pension plans:

	U.S. Plan						International Plans
	2017		2016		2015		2017		2016		2015
Weighted average assumptions used to determine benefit obligations at September 30 measurement date:
Discount rate	—	%	—	%	—	%	1.8	%	1.3	%	2.2	%
Rate of increase in future compensation	—	%	—	%	—	%	2.8	%	2.8	%	3.0	%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30:
Discount rate	—	%	—	%	3.80	%	1.3	%	2.2	%	2.4	%
Rate of increase in future compensation	—	%	—	%	—	%	2.8	%	3.0	%	3.0	%
Rate of return on plan assets	—	%	—	%	1.35	%	5.4	%	5.7	%	5.8	%

Components Of Net Periodic Pension Cost

The actuarially computed components of net periodic pension cost recognized in our Consolidated Statements of Operations for each year are shown below: 

	U.S. Plan							International Plans
	2017		2016		2015			2017			2016			2015
	(in thousands)
Interest cost of projected benefit obligation	$	—	$	—	$	4,591		$	815		$	1,374		$	1,828
Service cost	—		—		—			1,696			1,599			1,466
Expected return on plan assets	—		—		(1,364		)	(3,327		)	(3,305		)	(3,364		)
Amortization of prior service cost	—		—		—			(5		)	(5		)	(4		)
Recognized actuarial loss	—		—		2,577			3,385			2,292			1,815
Settlement loss	—		—		66,332			—			—			—
Net periodic pension cost	$	—	$	—	$	72,136		$	2,564		$	1,955		$	1,741

Change In Benefit Obligation And Plan Assets

The following tables display the change in benefit obligation and the change in the plan assets and funded status of the plans as well as the amounts recognized in our Consolidated Balance Sheets:

	International Plans
	Year ended September 30,
	2017			2016
	(in thousands)
Change in benefit obligation:
Projected benefit obligation—beginning of year	$	92,695		$	78,188
Service cost	1,696			1,599
Interest cost	815			1,374
Actuarial loss (gain)	(8,496		)	10,556
Foreign exchange impact	2,379			2,431
Participant contributions	183			147
Benefits paid	(2,104		)	(1,600		)
Settlements	—			—
Projected benefit obligation—end of year	$	87,168		$	92,695
Change in plan assets and funded status:
Plan assets at fair value—beginning of year	$	61,935		$	57,961
Actual return on plan assets	6,261			1,742
Employer contributions	2,036			1,978
Participant contributions	183			147
Foreign exchange impact	2,183			1,707
Settlements	—			—
Benefits paid	(2,104		)	(1,600		)
Plan assets at fair value—end of year	70,494			61,935
Projected benefit obligation—end of year	87,168			92,695
Underfunded status	$	(16,674	)	$	(30,760	)
Accumulated benefit obligation—end of year	$	84,298		$	88,768
Amounts recognized in the balance sheet:
Non-current liability	$	(16,674	)	$	(30,760	)
Current liability	$	—		$	—
Amounts in accumulated other comprehensive loss:
Unrecognized actuarial loss	$	24,738		$	38,667

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year

The following table shows change in accumulated other comprehensive loss:

	International Plans
	Year ended September 30,
	2017			2016
	(in thousands)
Accumulated other comprehensive loss- beginning of year	$	38,667		$	28,339
Recognized during year - net actuarial (losses)	(3,380		)	(2,288		)
Occurring during year - settlement loss	—			—
Occurring during year - net actuarial losses (gains)	(11,430		)	12,119
Foreign exchange impact	881			497
Accumulated other comprehensive loss- end of year	$	24,738		$	38,667

Percentage Of Total Plan Assets

The following table shows the percentage of total plan assets for each major category of plan assets:

	International Plans
	September 30,
	2017		2016
Asset category:
Equity securities	23	%	49	%
Fixed income securities	57	%	30	%
Commodities	6	%	4	%
Insurance company	12	%	16	%
Cash	2	%	1	%
	100	%	100	%

Expected Future Benefit Payments

As of September 30, 2017, benefit payments expected to be paid over the next ten years are outlined in the following table:

	Future Benefit Payments
	(in thousands)
Year ending September 30,
2018	$	2,472
2019	2,627
2020	3,054
2021	3,315
2022	3,954
2023 to 2027	22,648

International Plan Assets [Member]

Schedule of Available-for-sale Securities [Line Items]

Fair Value Of Plan Assets

	September 30, 2017
	Level 1		Level 2		Level 3		Total
	(in thousands)
International plan assets:
Fixed income securities:
Government	$	29,445	$	—	$	—	$	29,445
European corporate investment grade	10,675		—		—		10,675
European large capitalization stocks	16,164		—		—		16,164
Commodities	3,966		—		—		3,966
Insurance company funds (1)	—		8,714		—		8,714
Cash	1,530		—		—		1,530
	$	61,780	$	8,714	$	—	$	70,494

	September 30, 2016
	Level 1		Level 2		Level 3		Total
	(in thousands)
International plan assets:
Fixed income securities:
Government	$	8,518	$	—	$	—	$	8,518
European corporate investment grade	10,218		—		—		10,218
European large capitalization stocks	30,615		—		—		30,615
Commodities	2,709		—				2,709
Insurance company funds (1)	—		9,578		—		9,578
Cash	297		—		—		297
	$	52,357	$	9,578	$	—	$	61,935

 (1) These investments are comprised primarily of funds invested with an insurance company in Japan with a guaranteed rate of return. The insurance company invests these assets primarily in government and corporate bonds.