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Deferred Compensation And Retirement Plans (Tables)

6 Months Ended

Oct. 31, 2011

Deferred Compensation And Retirement Plans [Abstract]

Components Of Net Periodic Benefit Costs

		Three Months  Ended October 31,								Six Months Ended October 31,
		2011				2010				2011				2010
		(in thousands)
Service cost		$	—			$	34			$	—			$	68
Interest cost			884				925				1,768				1,850
Amortization of actuarial loss			355				105				710				210
Net periodic benefit costs		$	1,239			$	1,064			$	2,478			$	2,128

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- Definition

Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

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-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Name Statement of Financial Accounting Standard (FAS)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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