Fair Value Measurements (Tables)

6 Months Ended

Jul. 31, 2016

Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables present the fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (in thousands) as of July 31, 2016 and 2015 and January 31, 2016:

		Fair Value at July 31, 2016
	Balance Sheet Location	Level 1		Level 2		Level 3		Total
Assets:
Available-for-sale securities	Other current assets	$	271	$	—	$	—	$	271
Short-term investment	Other current assets		154		—		—		154
SERP assets - employer	Other non-current assets		1,364		—		—		1,364
SERP assets - employee	Other non-current assets		28,469		—		—		28,469
Hedge derivatives	Other current assets		—		549		—		549
Total		$	30,258	$	549	$	—	$	30,807
Liabilities:
SERP liabilities - employee	Other non-current liabilities	$	28,469	$	—	$	—	$	28,469
Hedge derivatives	Accrued liabilities		—		92		—		92
Total		$	28,469	$	92	$	—	$	28,561

		Fair Value at January 31, 2016
	Balance Sheet Location	Level 1		Level 2		Level 3		Total
Assets:
Available-for-sale securities	Other current assets	$	268	$	—	$	—	$	268
SERP assets - employer	Other non-current assets		1,168		—		—		1,168
SERP assets - employee	Other non-current assets		24,853		—		—		24,853
Hedge derivatives	Other current assets		—		64		—		64
Total		$	26,289	$	64	$	—	$	26,353
Liabilities:
SERP liabilities - employee	Other non-current liabilities	$	24,853	$	—	$	—	$	24,853
Hedge derivatives	Accrued liabilities		—		1,163		—		1,163
Total		$	24,853	$	1,163	$	—	$	26,016

		Fair Value at July 31, 2015
	Balance Sheet Location	Level 1		Level 2		Level 3		Total
Assets:
Available-for-sale securities	Other current assets	$	331	$	—	$	—	$	331
SERP assets - employer	Other non-current assets		1,667		—		—		1,667
SERP assets - employee	Other non-current assets		26,107		—		—		26,107
Hedge derivatives	Other current assets		—		103		—		103
Total		$	28,105	$	103	$	—	$	28,208
Liabilities:
SERP liabilities - employee	Other non-current liabilities	$	26,107	$	—	$	—	$	26,107
Hedge derivatives	Accrued liabilities		—		645		—		645
Total		$	26,107	$	645	$	—	$	26,752