Retirement Plans (Tables)

9 Months Ended

Oct. 31, 2012

Compensation and Retirement Disclosure [Abstract]

Net periodic pension costs (income)

The net periodic pension costs (income) for the Employees Retirement Plan, the VIP Plan, and the Non-Employee Directors Retirement Plan for the three and nine months ended October 31, 2012 and 2011 were as follows (in thousands):

	Three Months Ended October 31,
											Non-Employee Directors
	Pension Plan						VIP Retirement Plan				Retirement Plan
	2012			2011			2012		2011		2012		2011
Service cost	$	—		$	—		$	—	$	—	$	—	$	—
Interest cost	325			360			88		95		5		6
Expected return on plan assets	(245		)	(289		)	—		—		—		—
Amortization of prior service cost	—			—			—		—		—		—
Settlement cost	—			1,435			—		—		—		—
Recognized net actuarial loss or (gain)	360			262			51		13		—		(10		)
Net periodic pension cost (income)	$	440		$	1,768		$	139	$	108	$	5	$	(4	)

	Nine Months Ended October 31,
											Non-Employee Directors
	Pension Plan						VIP Retirement Plan				Retirement Plan
	2012			2011			2012		2011		2012		2011
Service cost	$	—		$	—		$	—	$	—	$	—	$	—
Interest cost	975			1,080			264		285		15		18
Expected return on plan assets	(735		)	(867		)	—		—		—		—
Amortization of prior service cost	—			—			—		—		—		—
Settlement cost	—			1,435			—		—		—		—
Recognized net actuarial loss or (gain)	1,080			786			153		39		—		(30		)
Net periodic pension cost (income)	$	1,320		$	2,434		$	417	$	324	$	15	$	(12	)