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Retirement Plans, Amounts in Accumulated Other Comprehensive Loss to Be Recognized During Next Fiscal Year (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2017 USD ($)
Amounts in Accumulated Other Comprehensive Loss to be recognized in next fiscal year [Abstract]
Actuarial Loss	$ 5,903
Prior Service Cost	(100)
Total	5,803
U.S. Plans [Member]
Amounts in Accumulated Other Comprehensive Loss to be recognized in next fiscal year [Abstract]
Actuarial Loss	2,230
Prior Service Cost	(154)
Total	2,076
Non-U.S. Plans [Member]
Amounts in Accumulated Other Comprehensive Loss to be recognized in next fiscal year [Abstract]
Actuarial Loss	3,673
Prior Service Cost	54
Total	$ 3,727

X

- Definition

Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation).

+ References

No definition available.

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Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

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Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

+ References

No definition available.

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