Revenues (Tables)

6 Months Ended

Aug. 31, 2019

Revenues [Abstract]

Disaggregation of Revenue [Table Text Block]

Disaggregated Revenue

The following table presents disaggregated revenue by customer industry (in thousands):

	Three Months Ended August 31,				Six Months Ended August 31,
	2019		2018		2019		2018
Net sales:
Industrial - oil and gas, construction, and general	$	139,352	$	120,305	$	304,152	$	271,613
Transmission and distribution	56,686		60,152		128,967		126,106
Power generation	40,152		42,330		92,194		87,304
Total net sales	$	236,190	$	222,787	$	525,313	$	485,023

Contract with Customer, Asset and Liability [Table Text Block]

Contract Liabilities

The following table shows the changes in contract liabilities for the six months ended August 31, 2019 and 2018, respectively (in thousands):

	August 31, 2019			August 31, 2018
Balance at beginning of period	$	56,928		$	22,698
Contract liabilities added during the period	18,234			21,166
Revenue recognized during the period	(51,504		)	(20,101		)
Balance at end of period	$	23,658		$	23,763