Deferred Compensation and Retirement Plans (Tables) (Deferred Compensation Plans)

9 Months Ended

Jan. 31, 2013

Deferred Compensation Plans

Components Of Net Periodic Benefit Costs

The components of net periodic benefit costs are as follows:

	Three Months  Ended January 31,				Nine Months Ended January  31,
	2013		2012		2013		2012
	(in thousands)
Interest cost	$	756	$	884	$	2,268	$	2,652
Amortization of actuarial loss		594		355		1,782		1,065
Net periodic benefit costs	$	1,350	$	1,239	$	4,050	$	3,717