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Retirement Plans Retirement Plans (Tables)
 6 Months Ended
Jul. 31, 2014
Compensation and Retirement Disclosure [Abstract]  
Schedule of Defined Benefit Plans Disclosures
The net periodic pension cost (income) for the Pension Plan, the VIP Plan, and the Non-Employee Directors Retirement Plan for the three months and six months ended July 31, 2014 and 2013 were as follows (in thousands):

 
Three Months Ended
 
Pension Plan
 
VIP Plan
 
Non-Employee Directors Retirement Plan
7/31/2014
 
7/31/2013
 
7/31/2014
 
7/31/2013
 
7/31/2014
 
7/31/2013
Service cost
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Interest cost
315

 
322

 
88

 
83

 
4

 
4

Expected return on plan assets
(275
)
 
(276
)
 
—

 
—

 
—

 
—

Amortization of transition amount
—

 
—

 
—

 
—

 
—

 
—

Recognized (gain) loss due to curtailments
—

 
—

 
—

 
—

 
—

 
—

Amortization of prior service cost
—

 
—

 
—

 
—

 
—

 
—

Recognized net actuarial (gain) loss
284

 
350

 
45

 
55

 
(8
)
 
(3
)
Benefit cost
$
324

 
$
396

 
$
133

 
$
138

 
$
(4
)
 
$
1



 
Six months Ended
 
Pension Plan
 
VIP Plan
 
Non-Employee Directors Retirement Plan
7/31/2014
 
7/31/2013
 
7/31/2014
 
7/31/2013
 
7/31/2014
 
7/31/2013
Service cost
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Interest cost
630

 
644

 
176

 
166

 
8

 
8

Expected return on plan assets
(550
)
 
(552
)
 
—

 
—

 
—

 
—

Amortization of transition amount
—

 
—

 
—

 
—

 
—

 
—

Recognized (gain) loss due to curtailments
—

 
—

 
—

 
—

 
—

 
—

Amortization of prior service cost
—

 
—

 
—

 
—

 
—

 
—

Recognized net actuarial (gain) loss
568

 
700

 
90

 
110

 
(16
)
 
(6
)
Benefit cost
$
648

 
$
792

 
$
266

 
$
276

 
$
(8
)
 
$
2