Fair Value Measurements (Tables)

6 Months Ended

Jul. 31, 2018

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, 2018 and 2017 and January 31, 2018:

		Fair Value at July 31, 2018
	Balance Sheet Location	Level 1		Level 2		Level 3		Total
Assets:
Available-for-sale securities	Other current assets	$	187	$	—	$	—	$	187
Short-term investment	Other current assets		156		—		—		156
SERP assets - employer	Other non-current assets		1,262		—		—		1,262
SERP assets - employee	Other non-current assets		38,970		—		—		38,970
Hedge derivatives	Other current assets		—		161		—		161
Total		$	40,575	$	161	$	—	$	40,736
Liabilities:
SERP liabilities - employee	Other non-current liabilities	$	38,970	$	—	$	—	$	38,970
Hedge derivatives	Accrued liabilities		—		481		—		481
Total		$	38,970	$	481	$	—	$	39,451

		Fair Value at January 31, 2018
	Balance Sheet Location	Level 1		Level 2		Level 3		Total
Assets:
Available-for-sale securities	Other current assets	$	275	$	—	$	—	$	275
Short-term investment	Other current assets		164		—		—		164
SERP assets - employer	Other non-current assets		994		—		—		994
SERP assets - employee	Other non-current assets		38,577		—		—		38,577
Hedge derivatives	Other current assets		—		544		—		544
Total		$	40,010	$	544	$	—	$	40,554
Liabilities:
SERP liabilities - employee	Other non-current liabilities	$	38,577	$	—	$	—	$	38,577
Hedge derivatives	Accrued liabilities		—		46		—		46
Total		$	38,577	$	46	$	—	$	38,623

		Fair Value at July 31, 2017
	Balance Sheet Location	Level 1		Level 2		Level 3		Total
Assets:
Available-for-sale securities	Other current assets	$	313	$	—	$	—	$	313
Short-term investment	Other current assets		161		—		—		161
SERP assets - employer	Other non-current assets		1,394		—		—		1,394
SERP assets - employee	Other non-current assets		34,007		—		—		34,007
Hedge derivatives	Other current assets		—		402		—		402
Total		$	35,875	$	402	$	—	$	36,277
Liabilities:
SERP liabilities - employee	Other non-current liabilities	$	34,007	$	—	$	—	$	34,007
Hedge derivatives	Accrued liabilities		—		489		—		489
Total		$	34,007	$	489	$	—	$	34,496