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Pension Plans And Other Post Retirement Benefits (Schedule Of The Change In The Benefit Obligation Of CDT Defined Benefit Plan) (Details) (USD $) In Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2011	Jun. 30, 2011
Pension Plans And Other Post Retirement Benefits [Abstract]
Benefit obligation-beginning of period	$ 18,231	$ 15,507
Service cost	85	350
Interest cost	227	868
Benefits paid	(108)	(423)
Actuarial (gain) loss	550	(688)
Foreign exchange (gain) loss	(940)	2,617
Benefit obligation-end of period	18,045	18,231
Less: current portion	(484)	(489)
Noncurrent portion of benefit obligation	$ 17,561	$ 17,742

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

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

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The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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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 amount of increase or decrease in the benefit obligation attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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