Retirement Plans (Tables)

6 Months Ended

Jul. 31, 2016

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, 2016 and 2015 were as follows (in thousands):

	Three Months Ended
	Pension Plan						VIP Plan				Non-Employee Directors Retirement Plan
	7/31/2016			7/31/2015			7/31/2016		7/31/2015		7/31/2016			7/31/2015
Service cost	$	—		$	—		$	—	$	—	$	—		$	—
Interest cost	296			324			90		105		3			3
Expected return on plan assets	(284		)	(324		)	—		—		—			—
Amortization of transition amount	—			—			—		—		—			—
Recognized (gain) loss due to curtailments	—			—			—		—		—			—
Amortization of prior service cost	—			—			—		—		—			—
Recognized net actuarial (gain) loss	282			375			77		120		(29		)	—
Benefit cost	$	294		$	375		$	167	$	225	$	(26	)	$	3

	Six Months Ended
	Pension Plan						VIP Plan				Non-Employee Directors Retirement Plan
	7/31/2016			7/31/2015			7/31/2016		7/31/2015		7/31/2016			7/31/2015
Service cost	$	—		$	—		$	—	$	—	$	—		$	—
Interest cost	592			648			180		210		6			6
Expected return on plan assets	(568		)	(648		)	—		—		—			—
Amortization of transition amount	—			—			—		—		—			—
Recognized (gain) loss due to curtailments	—			—			—		—		—			—
Amortization of prior service cost	—			—			—		—		—			—
Recognized net actuarial (gain) loss	564			750			154		240		(58		)	—
Benefit cost	$	588		$	750		$	334	$	450	$	(52	)	$	6