This represents the entire liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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Amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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Number of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan.

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Retirement Benefits (Narrative) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended					9 Months Ended		12 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2017
Value of Company Stock Contributed to Defined Contribution Benefit Plans			$ 13,999		$ 12,574
Treasury Stock Issued During Period, Shares, Employee Benefit Plans			317		259
Pension Plans, Defined Benefit [Member]
Net periodic retirement pension (benefit) cost		$ (390)		$ (458)		$ (923)	$ (1,368)
United States Pension Plans of US Entity, Defined Benefit [Member]
Net periodic retirement pension (benefit) cost		(383)		(474)		(898)	(1,421)
Foreign Pension Plans, Defined Benefit [Member]
Net periodic retirement pension (benefit) cost		(7)		16		(25)	53
Other Postretirement Benefit Plans, Defined Benefit [Member]
Net periodic retirement pension (benefit) cost		267		$ 257		801	774
Scenario, Forecast [Member] \| United States Pension Plans of US Entity, Defined Benefit [Member]
Benefits paid	$ 7,000							$ 7,000
Business Acquisition, Acquiree - Duarte Business [Member] \| Pension Plans, Defined Benefit [Member]
Net periodic retirement pension (benefit) cost	63
Current defined benefit pension plan liability		$ 200				200
Business Acquisition, Acquiree - Duarte Business [Member] \| Minimum [Member] \| Pension Plans, Defined Benefit [Member]
Settlement costs	100
Business Acquisition, Acquiree - Duarte Business [Member] \| Maximum [Member] \| Pension Plans, Defined Benefit [Member]
Settlement costs	$ 200
Total stockholders equity
Value of Company Stock Contributed to Defined Contribution Benefit Plans						13,999	12,574
Treasury Stock at Cost [Member]
Value of Company Stock Contributed to Defined Contribution Benefit Plans						$ 8,680	$ 8,084
Treasury Stock Issued During Period, Shares, Employee Benefit Plans						317	259